TWI511708B - Base of mold in dental practices and manufacturing method thereof, and embedded device of mold in dental practices and manufacturing method thereof - Google Patents

Description

Base of dental work model, manufacturing method thereof, and fitting device for dental work model and manufacturing method thereof

The present invention relates to a production such as a dental patch or the like, a base of a dental work model used for dental work, a method of manufacturing the same, a fitting device for a dental work model, and a method of manufacturing the same.

When a part or most of the tooth of the human tooth causes a defect due to tooth decay or other reasons, the treated tooth crown must cut all of its faces and then coat it with the cast metal. Chewing and other physiology. The restoration with this matter has a complicated shape and must satisfy various requirements, so that the restoration cannot be directly produced in the oral cavity. Therefore, the restoration must be produced outside the mouth, and in order to perform this preparation, it is necessary to carry out a work model for reproducing the state of the oral cavity outside the mouth. This work model must accurately reproduce the shape of the abutment teeth, the dentition, the defect, and other oral cavity.

Conventionally, in the production of a dental patch, as shown in FIG. 33 and FIG. 34, (1) a gypsum mold is taken from a patient's mouth to flow into a gypsum, and after hardening, the bottom surface is flattened to form a dental work copy. The model 1001; (2) after the base surface 1012 is formed with the anti-rotation groove as needed; (3) the hole is formed in the base surface 1012, and the positioning pins 1011 are parallel to each other, and one of the adhesives is used. The hole is implanted in the hole of the base surface 1012, and a release agent (for example, a surfactant) is applied to the base surface 1012 and the positioning pin 1011. (4) Then, the gypsum (secondary gypsum) is poured into a base rubber frame or the like (not shown), and a part of the positioning pin 1011 is embedded therein to form a working base. The stage portion 1003; (5) After the secondary gypsum is hardened, the periphery is cut until the joint surface of the replica mold 1001 and the work substrate 1003 can be confirmed. (6) Then, as shown in FIG. 34, the two sides of the abutment teeth C of the replica model 1001 are parallel to each other and parallel to the positioning pins 1011, and are described above from the upper portion of the replica model 1001. The gypsum-specific saw 9 is cut perpendicularly to the above-mentioned joint surface.

According to the above operation steps, the abutment teeth C can be pulled out and can be placed at a fixed position of the replica model 1001, and the dental work impression model in which the abutment teeth C can be inserted and removed can be conveniently produced by the support base 1003.

The above-mentioned work procedure is a work procedure for the production of the impression mold for dental work performed in the necessary cases for the preparation of the patch.

In addition to this method, there is a Japanese patent No. 4405931 as a new case, which proposes to replace the secondary gypsum, and instead replaces it with a plate called a "mold-molding surface" in which a positioning pin state has been implanted on a plastic base. A method of laminating and manufacturing in the case where the working steps (3) and (4) are omitted.

[Advanced technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent No. 4112732

[Patent Document 2] Japanese Patent Laid-Open No. 5-96676

[Patent Document 3] Japanese Patent Laid-Open No. 4405931

However, the cutting method for cutting out the abutment teeth C is as described in Fig. 33, and the gypsum-specific saw 9 is used from above in such a manner that the abutment teeth C are both parallel and parallel to the positioning pin 1011. The above-described dental work model is prepared by cutting perpendicularly to the joint surface 1012 to ensure the area of the base surface 1012. However, as shown in Fig. 33, in the case of a normal dentition having a small number of irregularities, a single-step cutting method in which the cutting is performed along the line D from above by a saw is applied as described above. However, in a case where the tooth is easily toothed and the patch is easily required, as shown in Fig. 34, when the tooth row has a concave or convex dentition, it is necessary to use the gypsum-specific saw 9 as shown in Fig. 34. The line B is cut obliquely until the joint surface 1012, and the adjacent side view is as shown in FIG. 35E and FIG. 35F. In the work step for cutting the branch tooth C, the positioning pin 1011 has to be Cutting off nearby causes the abutment teeth C and the positioning pins implanted in the adjacent teeth to be damaged. Alternatively, the conventional cutting method by a single step cutting cannot prevent the base surface area of the replica model 1001 from being reduced as shown in Figs. 35A and 35B.

In order to ensure the area of the joint surface 1012 even if it is small, the method of cutting down the direction of the stress by the gypsum-specific saw 9 in the middle of the cutting is performed, and the line B is cut as shown in FIG. As a result, the area of the base surface 1012 of the abutment tooth C as shown in Fig. 35A cannot be prevented from becoming extremely small. Specifically, as shown in FIG. 35C including FIG. 35B and the adjacent surface of FIG. 35D belonging to the cut surface of the line B, the area of the base surface 1012 of the abutment tooth C is narrower than that of the above-mentioned FIG. 35C. It is difficult to ensure that the sufficient base surface 1012 area necessary for the dental technology work that requires multiple insertions and removals is difficult to locate the abutment tooth C in a stable position.

Further, the replica model 1001 is produced by using gypsum which is likely to be cracked, defective, or collapsed, and it is difficult to securely secure a sufficient base surface 1012, so that high precision can be produced in the work model production stage. Patch 7, there will be problems in the skilled dental technology industry. Further, there is a problem that cracks, defects, collapses, and the like occur in the work of making the patch, and there is also a problem that waste is generated after the patch is produced.

When the dental work model is produced, the abutment teeth C shown in Fig. 33 (normal tooth row) and Fig. 34 (abnormal tooth row) can be easily inserted and removed, and the abutment teeth C can be stabilized. The fact that the ground is located at a fixed position of the replica model 1001 is indispensable for the work steps of making the dental patch 7. The reason is that the patch 7 produced in accordance with the high-precision dental work model is not required to be adjusted to a high-precision patch when it is mounted in the oral cavity. Further, even if fine adjustment or trimming is performed at the medical site, the above-described impression model is used, and in particular, as shown in FIG. 34, the dentition is uneven, and the above disadvantages are appropriate for the patch. Form a major obstacle.

For the work model for making patchwork, it is necessary to correctly reproduce the abutment teeth, the dentition, the defect, and other oral forms. However, when the work model is manufactured according to the manufacturing method used by the self-study, the positional relationship between the tooth profile and the dentition model is easily confused, the complicated production sequence and operation are increased, and the dentition model is correctly reproduced and fitted. The occlusion relationship of the dentition model requires more skilled and time-consuming manual work, resulting in poor workability. Shortcomings.

In addition, the working model for making the patch is capable of recreating the meshing action due to the movement of the patch, and then installing the plaster in the articulator, but after the patch is completed, Disassemble the articulator and treat gypsum etc. as industrial waste. At this time, the work time and the processing cost burden become a major drawback.

The present invention has been made to solve the above problems, and it is possible to provide a dental work model capable of producing a high-precision patch by sufficiently securing a joint surface area with a work base without causing damage to the tip even if the tooth row is not finished. And a manufacturing method thereof, a fitting device for a dental work model, and a method of manufacturing the same.

Furthermore, it is also provided that the amount of gypsum used when the patch is attached to the articulator is set to a minimum limit, and after the preparation of the patch is completed, the fitting device can be simply removed from the articulator in a short time. It is also possible to reduce the cost of the post-disposal fitting device.

The base of the dental work model of the present invention comprises: a split plate on which a stamp model is placed, and a support base integrally joined to the split plate; and a base of the dental work model; wherein the split plate is joined to a plurality of grooves are arranged on the surface of the supporting base, and the tips are respectively disposed between the grooves; the supporting bases are respectively provided with grooves corresponding to the grooves, and respectively provided with holes for inserting the tips, so that the respective tips are fitted into the respective In the state of the hole, the split plate is joined to the base.

In one embodiment, the split plate is formed of a synthetic resin mixed with gypsum, talc, and an inorganic material having a hardness of 1 and formed integrally with the tip.

A fitting device for a dental working model according to the present invention includes: a resin supporting base, a resin dividing plate, a stamping model, and a fitting table; and the resin dividing plate has a lower portion forming a plurality of tips. The mold is attached to the fixed position of the support base; the impression model is placed on the split plate; the fitting system has columnar protrusions, and the columnar protrusions are closely fitted to the support base a recessed portion between the plurality of tip insertion holes; wherein the tip insertion hole of the support base is inserted and inserted into the tip; and the tip is inserted into the tip insertion hole to form a fixed position of the split plate to the support base .

In one embodiment, the fitting table has an upper surface that is larger than a lower surface of the supporting base, and has a convex portion extending across the both ends of the short side at both ends of the bottom surface thereof and is provided under the lower surface thereof Further, the columnar convex portion is further fitted with a separation plate of a flexible material.

In an embodiment, the groove of the dividing plate is on the boundary surface between the dividing plate and the supporting abutment, and the spacing of the teeth corresponding to the impression model is respectively spaced between the tips below the dividing plate, and a saw-inducing groove spanning the front end and extending to the rear end; the groove of the support base corresponds to the saw-inducing groove, and the saw standby groove extending between the tip insertion holes on the support base; forming the saw It is inserted between the saw-inducing groove and the saw standby groove, and is sawed upward from the saw-inducing groove of the split plate toward the gypsum portion of the stamp model.

In one embodiment, the support base is provided with a downwardly formed convex portion, and the undercut is coupled to the fixed position when the support base and the split plate are stacked, and is coupled to the fixed position when the mutual engagement structure is formed; the split plate is provided Taper The (tilted) recess, the taper (tilt) corresponds to the lower undercut of the convex portion on the upper surface of the support abutment.

A method of manufacturing a dental work model according to the present invention includes: a first step, a second step, and a third step, wherein the first step is to prepare a split plate having a plurality of grooves and having tips between the grooves; a support base that is fitted into the tip insertion hole of the tip is provided, and the tip is fitted into the tip insertion hole, and the base plate is joined to the support base by the split plate; the second step is to print The mold model is adhered to the dividing plate by an adhesive; the third step is to be adhered to the two sides of the abutment teeth of the upper impression model, and is cut according to the surface passing through the groove.

A method of manufacturing a dental work model according to the present invention includes: a first step, a second step, a third step, and a fourth step, wherein the first step is prepared to provide a plurality of grooves and disposed between the grooves a tipped dividing plate and a supporting base provided with a tip insertion hole in the tip, the tip is fitted into the tip insertion hole, and the dividing plate is joined to the supporting base to form a base; In the second step, the stamping model is adhered to the dividing plate by using an adhesive; the third step is to be adhered to the two sides of the abutment teeth of the upper impression model, and the sawing is started from the groove; the fourth step The saw is cut from the upper side of the two sides of the abutment teeth.

A method for manufacturing a dental work model according to the present invention includes: a first step, a second step, and a third step, wherein the first step is to prepare a side surface having a slope, and the upper surface is formed to be smaller than a bottom surface of the split plate a supporting base of the engaging surface, and inserting and inserting the tip into the tip insertion hole, and arranging the dividing plate at a fixed position of the supporting base; In the second step, the stamping model is fixed to the dividing plate by an adhesive; the third step is to adhere the stamping model to the dividing plate, and the two sides of the abutment are guided by the sawing groove of the dividing plate. The face is divided.

A method for manufacturing a dental work model according to the present invention includes: a first step, a second step, a third step, and a fourth step, and the first step is to insert the tip into the tip by inserting and inserting the tip Inserting the hole and disposing the dividing plate at a fixed position of the supporting base; the second step is to fix the stamping model to the dividing plate by using an adhesive; and the third step is to make the saw stand by the saw supporting the base. The groove is aimed at the two sides of the abutment tooth of the impression model, starting from the saw-inducing groove of the dividing plate and starting upwardly to the dividing and moving portion near the neck of the impression model; the fourth step is from the impression model The upper portion of the abutment teeth is sawed down to the dividing and moving portion of the third step, and is connected to the cut portion of the saw which is cut by the third step.

According to an embodiment of the present invention, the present invention is constructed by a partition plate having a parallel tip at a lower portion and a support base having a hole for fitting a tip to form a base for a dental work model. The operation of arranging holes in the base surface of the stamping model and inserting the tips of the tips one by one with an adhesive or the like may be omitted, or the gypsum may be omitted from flowing into the mold frame or the like to form the supporting base. In the working procedure, the die-cutting operation can be started by simply adhering the stamping model to the splitter plate, so that the dental impression die model can be prepared in a very simple and short time without being skilled.

Furthermore, a groove is provided between the tip and the tip of the dividing plate, and a groove corresponding to the groove is also provided on the fitting supporting base, thereby enabling The saw waits in the groove of the support base and fits the split plate to perform the upward sawing on the upwardly facing impression model. By the above steps, the abutment teeth of the very difficult dentition irregularities can be cut, and the exact area of the base surface can be ensured, so that the abutment teeth can be easily inserted and removed from the support base, and the precision can be accurately The ground is located at a fixed position.

The support base is provided with a groove in the upper portion, and when used in a normal tooth row, even if it is cut from the upper portion to the joint surface in one step, it is not easily damaged by the saw. Therefore, only the split plate can be replaced, and the support base can be reused several times as the base of the model for dental work, and can be regenerated after use, and waste garbage can be produced without gypsum.

According to an embodiment of the present invention, the partition plate is made of a resin, and by mixing gypsum, talc, or an inorganic material having a hardness of 1 degree, the brittleness of the conventional gypsum can be compensated, and the resin can be adjusted to be gypsum. Since the hardness 1 is the same, the laminated structure of the gypsum impression model is adhered to the partition plate, and when the abutment tooth cutting operation is performed by the saw, there is no discomfort (for example, the plaster of the split plate and the abutment teeth) The part is formed into a unitary piece to be cut.

The fitting device for a dental work model according to an embodiment of the present invention can be produced in a large amount in a simple, easy, efficient, and inexpensive manner.

It is conventional to be skilled in shaping, in addition to labor, time and expense, but the present invention can be easily and inexpensively produced in large quantities at low cost. Moreover, since no gypsum is used except when the articulator is installed, the impression model for dental work can be beautifully formed, and a tough structure can be formed, which can reduce breakage and damage. situation.

According to the dental model fitting device according to an embodiment of the present invention, it is possible to ensure a very difficult base surface area in the case of segmentation of the abutment teeth in the case of dentition irregularities, by preventing errors due to dimensional changes of the model. High-precision patching can be made.

According to the dental model fitting device according to the embodiment of the present invention, the undercut portion which is impossible for the gypsum can be placed in the genus engagement structure by using the resin without using the gypsum. The support base and the splitter plate can be adjusted to the precise degree of fitting and the subtle feeling of pulling out.

According to an embodiment of the present invention, the present invention includes a split plate in which a plurality of grooves are provided and a tip is provided between the grooves, and a support base provided with a tip insertion hole fitted in the tip a first step of forming a base by fitting the tip into the tip insertion hole, joining the support plate by the split plate, and a second step of bonding the stamp model to the split plate by using an adhesive; The third step of cutting the two sides of the abutment tooth of the upper impression die according to the surface of the groove; therefore, even if the tooth row is not uniform, the bottom surface area of the abutment tooth can be sufficiently ensured Impression model for high precision dental work.

According to the dental model fitting device according to the embodiment of the present invention, a split plate having a plurality of grooves and having a tip between the grooves, and a support base provided with a tip insertion hole fitted in the tip are prepared. a first step of forming a base by fitting a tip into the tip insertion hole, joining the support plate by the split plate, and a second step of bonding the stamp model to the split plate by using an adhesive; The third step of sticking to the two sides of the abutment tooth of the impression model, starting from the groove to the upper saw; and the fourth step of cutting from the upper side of the two sides of the abutment tooth; thereby omitting the impression The working surface of the model is formed by drilling a hole in the base surface of the model and using a primer or the like to insert the tips one by one, or omitting the step of supporting the abutment by casting the gypsum into the mold frame or the like, and relies only on The impression model is adhered to the splitter plate, and the cutting operation of the abutment teeth can be started. Therefore, the impression model for dental work can be prepared very simply and in a short time without being skilled. Moreover, it is possible to surely ensure the base surface area of the teeth of the dentition which is extremely difficult.

According to an embodiment of the present invention, a fitting device for a dental model can be provided on the support base by providing a tilt on the side of the support base and having an engagement surface on the support base that is smaller than the bottom surface of the split plate. A gradient is created at the inlaid transition portion between the split plates, whereby the insertion and removal of the abutment teeth can be easily repeated.

According to the dental model fitting device according to an embodiment of the present invention, the support base can be reused by the saw standby groove on the support base without the damage of the split plate completely downward.

Hereinafter, specific examples of the present invention will be described in detail. The base of the dental work model according to the first embodiment of the present invention includes a split plate 2 and a support base 3. The split plate 2 and the support base 3 are arranged in a substantially parallel arrangement in which two or more teeth are oriented in the same direction, and are arranged in an arc shape and along the length and width of the tooth row. The working model of the embodiment of the present invention corresponds to the dog The teeth are arranged in the depth direction.

The dividing plate 2 is formed on the bottom surface toward the lower portion, and a plurality of fins 14 are planted in parallel and at regular intervals, and a saw-inducing groove 5 is provided between the adjacent tips 14 of the bottom surface. The saw-inducing groove 5 is arranged in a direction intersecting the tooth row of the stamp model 1 formed on the upper portion (that is, in the width direction of the split plate 2), and is continuously formed linearly from one end to the other end. The saw-inducing groove 5 is arranged such that the interval between the plurality of saw-inducing grooves 5 is discontinuous, for example, at intervals corresponding to the interval of the teeth of the adult molars, and the cutting edge of the gypsum-specific saw 9 can be induced into the saw-inducing groove. The depth in which the groove 5 extends. On the bottom surface of the split plate 2, two anti-rotation grooves 10 are formed in parallel so as to be orthogonal to the saw-inducing groove 5.

On the other hand, the support base 3 is provided with a tip insertion hole 6 for fitting the tip 14 and formed at an opposite position of the saw-inducing groove 5 between the adjacent tip insertion holes 6. The saw is used for the groove 4 for standby.

When the split plate 2 is fitted to the support base 3, the saw standby groove 4 faces the saw induction groove 5, and forms a circular cross section.

Further, the support base 3 is formed with two ridges 13 that are fitted to the anti-rotation groove 10 of the split plate 2.

When the split plate 2 is segmented by the saw-inducing groove 5, the tip 14 is arranged in such a manner that the branch teeth C are respectively arranged to have the tips 14 and formed to be slightly orthogonal to the upper surface of the split plate 2 and The abutment teeth C are vertically protruded from below.

The tip 14 of the split plate 2 and the anti-rotation groove 10 are respectively fitted with a support base The tip of the stage 3 is inserted into the hole 6 and the rib 13. In accordance with this, the dividing plate 2 and the supporting base 3 are integrated.

At this time, the groove edge of the saw-inducing groove 5 of the split plate 2 coincides with the groove edge of the saw standby groove 4 of the support base 3, and the saw-inducing groove 5 is determined in a relative state. The position of the groove 4 for standby with the saw.

At this time, the fitting strength of the split plate 2 and the support base 3 is such that the split plate 2 and the support base 3 are formed of synthetic materials of different materials in order to be able to achieve moderate strength necessary for performing the dental technology work. By selecting a synthetic resin of a different material in such a manner that one of them is hard and the other is flexible, it is easy to adjust the above-mentioned fitting strength to an appropriate value, and it is possible to perform high-precision dental filling with stability. Production of the object 7.

In the material of the partitioning plate 2, even if the thinner tip 14 is formed integrally and the saw-inducing groove 5 is provided, it is preferable to use a synthetic resin which has sufficient strength as a whole. Then, the partitioning plate 2 is used as shown in the figure, and is adhered to the stamping model 1 to be used, so that a shell powder such as gypsum, talc, or oyster is mixed, and if possible, the inorganic material having a hardness of about 1 is 30. A weight percentage is preferred. Further, the split plate 2 may be formed by using a low foaming resin, and the stamper 1 of the gypsum may be adhered to the split plate 2 by an adhesive or the like, and the split plate 2 and the support base 1 may be integrally formed. A structure that does not have an uncomfortable feeling and can be cut.

The dividing plate 2 is provided with a saw-inducing groove 5 having a width and a depth of several millimeters, and the saw-inducing groove 5 is provided between the respective tips 14 disposed under the dividing plate 2 belonging to the boundary surface with the supporting base 3. Between the front and rear (the tooth surface side is the front, the teeth are orthogonal to the long end edge and parallel to the short end edge) The inner side is the rear) extending between the two long edges.

On the other hand, the support base 3 corresponds to the saw-inducing groove 5, and is provided with a saw standby groove 4 having a width and a depth of several millimeters, and the saw standby groove 4 is attached to the support base 3 The upper end insertion holes 6 extend between the two long edges along the front and rear (the front side of the tooth surface and the rear side of the tooth), which are orthogonal to the long end edge and parallel to the short end edge.

The tip 14 is formed under the split plate 2, and extends long in the downward direction at an appropriate interval from the long end edge and the short end edge. The saw-inducing groove 5 is disposed between the tips 14 and is appropriately spaced apart below the split plate 2 The interval extends continuously in the direction of the front and rear.

Further, the tip insertion hole 6 is formed on the upper surface side of the support base 3, and the long end edge and the short end edge are extended in the downward direction at an appropriate interval, and the saw standby groove 4 is formed between the tip insertion holes 6. On the upper surface of the support base 3, a continuous continuous extension in the direction of the front and rear (the front side of the tooth surface and the inner side of the tooth) is arranged at an appropriate interval.

The gypsum-specific saw 9 is placed in the ready state with the saw standby groove 4, and the upper split plate 2 is laminated, and the saw-inducing groove 5 is cut upward (along line A) toward the split plate 2, so that the branch can be surely secured. A method of dividing the base surface C ₁ of the tooth C.

In the lower portion of the partition plate 2, the saw-inducing groove 5 is provided, and when the split plate 2 is cut along the saw-inducing groove 5, the sawtooth for guiding the gypsum-specific saw 9 is optimally oriented. A shallow gap of about 0.5 to 1 mm is set according to the direction in which the partition plate 2 is extended in the front and rear directions.

The upper portion of the support base 3 corresponds to the above-described saw induction groove 5 The saw standby groove 4 is arranged in such a manner that the saw teeth of the plaster special saw 9 are mounted upwards, and the plaster special saw 9 can be pressed along the saw-inducing groove 5 and sawed, preferably based on the thickness of the sawtooth. Set to a width of 1 mm and a depth of 1.5 to 2 mm.

The gypsum-specific saw 9 uses a sawtooth portion to form an elongated wire-shaped wire saw.

In the present embodiment, the base is composed of two members such as the split plate 2 and the support base 3, and the split plate 2 and the support base 3 are each formed of synthetic resin. The dividing plate 2 is formed by embedding a stamping model 1 (which is obtained by injecting gypsum into a tooth-shaped negative mold sampled from the oral cavity), and adhering thereto by an adhesive or the like, and is fitted to the supporting base. Taiwan 3.

Further, in order to be more firmly adhered to the bottom surface of the stamper 1, it is preferable to form a large number of fine irregularities such as linear scratches on the upper surface of the split plate 2.

At the same time as the preparation of the base for the dental work model is completed, the cutting step of dividing the abutment teeth C is entered.

The cutting preparation of the abutment teeth C is as shown in FIG. 2, and the above-mentioned fitted dividing plate 2 is pulled out from the supporting base 3, and the saw standby groove 4 is provided on the support base 3, The saw teeth of the plaster-specific saw 9 are mounted upwards. In this state, the split plate 2 provided with the saw-inducing groove 5 for the gypsum-specific saw 9 is fitted to the support base 3 to form a joint between the split plate 2 and the support base 3. The saw standby groove 4 and the saw-inducing groove 5 formed on the surface are placed in a state of the gypsum-specific saw 9, and the cutting preparation of the abutment teeth C is completed.

The cutting step of the abutment tooth C is assumed to be cut along the line A shown in FIG. In the saw standby groove 4 provided on the support base 3, the gypsum-specific saw 9 is attached to the upper side of the saw tooth as described above, and the split plate 2 of the stamp model 1 is adhered thereon, and the lower portion is induced. The saw-inducing groove 5 provided for the plaster-specific saw 9 is directed toward the base surface C _{1 of} the stamp model 1 and is sawed upward along the line A toward the vertical direction.

Fig. 4 shows the first half of the cutting operation step of the abutment tooth C.

The first half of the cutting operation step of the abutment tooth C is to cut the two saw standby grooves 4 between the adjacent teeth on both sides of the divided abutment teeth C or the position thereof, and as described above, In the saw standby groove 4 of the two saw standby grooves 4 of the support base 3, the plaster-specific saw 9 is installed, and the saw-inducing groove 5 of the split plate 2 is perpendicular to the case having the dentition irregularity branched impression model 1 of the left and right sides of the table tooth base surface C C _1, C to the abutment by the left and right sides of the groove 4 and the stand-by saws saw stand parallel to each other 4 by sawing up the trenches, and the way It stops and ends.

At this time, the cut end faces 8 of the abutment teeth C are slightly at the same height position.

The upper end 8 is preferably made to reach the upper portion as much as possible in order to ensure the area of the base surface C _{1 of the} abutment tooth C and to ensure the durability of the micro-adjustment when the dental technician is operated and installed in the oral cavity.

Fig. 5 shows a cutting step from the upper left to the lower side of the abutment tooth C with a dentition irregularity. The upper half of the abutment tooth C with a dentition is cut from the left and right adjacent teeth, and the left and right sides of the abutment tooth C are sawed down along the line B. The lower end of the cut surface of the lower saw is aligned with the cut end 8 of the upper saw in the first half step, and the cut faces are connected to each other.

At this time, the left and right widths of the abutment teeth C are extremely wide, as shown in Fig. 6. In particular, the stress and elasticity of the special gypsum saw 9 are used. Then, the width is gradually changed to a wider extent, and the state is the same as that of the cut surface 8 from the bottom to the upper saw.

As described in detail above, the cutting step of dividing and cutting out the abutment teeth C is divided into two parts: from the two sides of the dividing plate, to the middle half of the gypsum portion constituting the gum portion of the impression model 1. The step and the step from the upper portion of the gypsum portion to the middle portion of the gypsum portion of the gingival portion between the dentition teeth constituting the impression model 1 are two steps.

In the first half step, the saw standby groove 4 is provided in the upper portion of the support base 3, and the gypsum-dedicated saw 9 is mounted upward as shown in the drawing and is extended along the saw standby groove 4, and is fitted and divided. In the state of the plate 2, as shown in Fig. 4, the step of sawing upward from the saw-inducing groove 5 toward the upper side is perpendicular to the joint surface. However, the second half of the step is as shown in FIG. 5, and the step of sawing down from the upper two sides of the abutment tooth C along the line B. Stage 2 separate grounds for such system shown in FIG. 6, when using the two step C anchor tooth cutting, then as shown in FIG. 7A to 7F can be reliably ensured in the _area of the base surface C , 俾 can produce abutment teeth C that can perform high-precision dental work.

Hereinafter, the abutment teeth C separated by the cutting will be described in detail based on FIGS. 7A to 7F. The abutment tooth C after the cutting is performed by the present invention, as shown in a plan view (as shown in FIG. 7A), even if the abutment tooth is from the upper two sides of the impression model 1 (the adjacent flank on both sides of the abutment tooth C) The shape after C cutting is very small, but the cutting method of the present invention using the saw-inducing groove 5 from the lower portion of the split plate 2 to the upper half of the upper saw is not related to the upper shape of the abutment tooth C. The bottom area of the width of the dividing plate 2 (between the adjacent saw-inducing grooves 5 and the saw-inducing grooves 5) can be surely ensured.

The cutting width of the shape of FIG illustrated as anchor tooth base plane C ₁ and C around the front, the cutting method of the present invention using the anchor tooth 7B base surface C of C _1, can be cut by using the The cutting method is formed in the shape of the base surface C ₁ of the abutment tooth C from the saw-inducing groove 5 on the bottom surface of the split plate 2, and is surely secured as shown in the drawing, whereby the base surface C ₁ can be surely secured. area.

7C (front view), FIG. 7D (rear view), and FIG. 7E (left side view) and FIG. 7F (right side view), the position of the upper end 8 of the cut surface is lower than the back side, front side The side of the cut surface is formed with a lower side and the front side and the rear side are connected to each other to form a diagonal line.

In the above embodiment, the dividing plate 2 is provided with a plurality of parallel branches 14 at the lower portion and is integrated, so that it is not necessary to open the bottom surface of the impression model 1 as in the prior art, and then the one end 14 is parallel. The step of implanting in the bottom face can complete the dental work model in a simple step, thereby reducing the steps and working time of the complicated dental technology working model.

The shape of the support base 3 is as shown in FIG. 8A to FIG. 8C, and various efforts can be made to make it easy to grip, prevent fatigue, and improve operability when the patch 7 is produced. For example, the support base 3 of the example illustrated in FIG. 8A forms a barrel-shaped recess L around the support base 3. The support base 3 of the example illustrated in Fig. 8B is provided with a circular recessed recess M that fits the finger. The support base 3 of the example shown in FIG. 8C is formed so that a large number of linear grooves N are formed in order to prevent slippage.

Fig. 9A shows another embodiment of the split plate 2 which forms a truncated portion F at the front and rear edge portions. The truncated part F uses the dental hand In the trimming operation of the abutment tooth C, the upper front end and the rear end edge of the split plate 2 may become obstacles, and therefore, it is preferable to provide the edge on the upper front end and the rear end side of the split plate 2 in consideration of operability. section. The truncated portion F is not limited to the shape described, and is preferably in the range of the truncated width and height of about 1 to 2 mm.

Fig. 9B is a diagram showing the meaning of the truncated portion F.

As shown in FIG. 9B, when the trimming operation of the support tooth C is performed by the electric drill E or the like, the upper front end and the rear end edge portion of the split plate 2 may become obstacles, but by the front end and the rear of the split plate 2 The edge portion of the end forms the truncated portion F, and the trimming operation can be performed without any trouble.

Fig. 9C is a view showing a part of the steps of making the dental patch 7 using the base of the present invention.

The abutment teeth C of the impression model 1 adhered to the dividing plate 2 of the dental work base are cut by two steps, the first half and the second half, and the dental technician model is completed. The abutment tooth C is filled with a wax or the like formed by a candle, and then engraved to obtain a model of the patch 7. Then, it is embedded in a casting ring for metal casting, and is cast, and after finishing the finished restoration patch 7 by grinding, it is mounted on the support tooth C to complete the production of the patch 7. step.

The present invention can also be sufficiently adapted to use the abutment teeth C of the normal dentition case in which the tooth arrangement is as shown in Fig. 33 along the curve (line D) of the drawing dentition from the upper portion of the impression model 1. 1 step to cut.

Further, the split plate 2 and the support base 3 are made of synthetic resin, so that the fitting accuracy of both the split plate 2 and the support base 3 is good. Further, since the support base 3 is provided with the saw standby groove 4, the support base 3 can be used without damage to the support base 3. Therefore, the support base 3 can be replaced only for each operation. The system can be used multiple times.

In the base of the present invention, by using the synthetic resin in both the partitioning plate 2 and the supporting base 3, the stamping model 1 (dihydrate gypsum) made of gypsum adhered to the upper portion of the dividing plate 2 can be subjected to fine particles. (finely) pulverized and mixed in the above synthetic resin. Therefore, the base system of the present invention can realize that gypsum waste garbage is not produced, and all can be recycled.

[Example 1]

The split plate 2 is mainly made of synthetic resin. In this embodiment, CELLMIC® (CE), which is mixed with polystyrene resin in an amount of about 30 to 40% by weight of gypsum, and an organic blowing agent of azomethanin (ADCA), is added in an amount of 0.7% by weight. The mixture which was re-dispersed was melt-kneaded (200 to 210 ° C) in an injection molding machine, and then produced by low foaming injection formation. Gypsum (also referred to as "hemihydrate gypsum = calcined gypsum" or calcium sulfate 1/2 hydrate) which is mixed in the formation of the dividing plate 2 is obtained by using gypsum in the upper portion of the dividing plate 2 In the dental work step in which the model 1 is applied, the split plate 2 and the impression mold 1 are integrally formed without any uncomfortable feeling, and the plaster-specific saw 9 can be easily cut and mixed.

The support base 3 is produced by melt-kneading the polystyrene resin in an injection molding machine and then performing injection molding. The support base 3 is preferably used in the dental technology work step in which the split plate 2 is fitted to the support base 3, and it is necessary to adjust the proper fitting. A material different from the above-described split plate 2 is formed of a synthetic resin that does not contain a mixture of gypsum or the like.

The material of the support base 3 can adjust the proper fitting between the support base and the split plate (consisting of the tip portion and the anti-rotation groove portion) by using a resin different from the above-mentioned split plate. In the step of the dental technology work that needs to be inserted and removed multiple times, the precision and stability are excellent, so that the patch with high precision can be produced7.

In the above embodiment, the split plate 2 is used after being mixed with gypsum in a synthetic resin, but the split plate 2 may be replaced with gypsum, and an inorganic material having a hardness of 1 degree such as talc or shell powder may be mixed.

Further, in the above embodiment, since the fitting adjustment between the split plate 2 and the support base 3 is emphasized, the support base 3 is used without foaming the polystyrene resin without the mixed matter, but It is not always necessary to cause foaming, and the support base 3 may be made to have low foaming. In this case, the foaming agent can be appropriately selected from the conventional physical foaming agent or chemical foaming agent of the foaming agent of the polystyrene resin. However, since the degree of precision is lowered if the expansion ratio is increased, it is preferable to retain the low foaming.

[Embodiment 2]

Instead of the gypsum of the split plate 2 of Example 1, the split plate 2 was changed to use a mixture of wood powder (wood chips) in an amount of about 30 to 40% by weight, and was formed.

The split plate 2 to which the plaster impression model 1 has been adhered is preferably mixed with an inorganic material in a synthetic resin for the purpose of cutting without using a gypsum-specific saw 9 without discomfort. Feel, if not It is intended to mix the organic materials such as wood powder (wood chips) into the range of 30 to 50% by weight, or to be replaced by inorganic materials. In this case, the feeling of cutting off when the inorganic material is mixed is not obtained.

In addition, when an organic material such as wood powder (wood chips) is mixed with an inorganic material and mixed into a synthetic resin, the feeling of cutting the split plate 2 is performed by the gypsum-specific saw 9, and the smooth cutting saw can be felt. .

Next, another embodiment of the present invention will be described with reference to Figs. 10 to 19 . However, the embodiment shown below is exemplified as a dental model fitting device 100 embodying the technical idea of the present invention, but the dental model fitting device 100 of the present invention is not limited to the following.

The dental model fitting device 100 shown in FIG. 10 includes a support base 103, a resin split plate 102, and a stamp model 101. The resin split plate 102 has a lower portion having a plurality of tips 114 formed in a group, and the plurality of tips 114 are detachably coupled to the support base 103 at a fixed position. The stamp model 101 is fixed to the split plate 102.

The plurality of tips 114 are perpendicular to the bottom surface of the dividing plate 102 and are respectively parallel and extend downward to form an elliptical column shape, that is, the bottom surface is elliptical, and the angle between the bottom surface and the side surface is not 90 degrees, and the front end is gradually smaller. Conical oblique cylinder. The tip 114 is injection-molded in a group by a forming die, and is integrally formed with the split plate 102.

The split plate 102 is formed on the support base 103 in a laminated structure in which the tip 114 is coupled to the fixed position, and is formed one turn larger than the support base 103 and protrudes outward from the upper surface of the support base 103.

The tip 114 is formed at a position corresponding to the tooth portion of the stamp model 101.

The supporting base 103 of the dental model fitting device 100 has a truncated quadrangular pyramid shape as a whole, and has a hollow portion therein, which is slightly planar, and is provided with a tip 114 that can be inserted and removed from above. The inserted tip insertion hole 106.

The support base 103 includes an upper wall 130 and a side wall 131, and defines a space between the front wall 132 and the rear wall 133 of the side wall 131, and is provided around the tip insertion hole 106 so as to surround the front wall by the insertion hole 106. The plurality of spaces 134 formed by the rear wall 133. The plurality of intervals 134 constitute an insertion portion of the tip 114, and are formed intermittently at an appropriate interval in accordance with the arrangement of the tip insertion holes 106.

The recessed portion 135 at the plurality of intervals 134 has a rectangular cross section, and is opened from the bottom surface opening portion of the support base 103 toward the upper wall 130, and the recessed portion 135 is fitted to the fitting convex portion 142 of the fitting base 140 to be described later.

The tip insertion hole 106 is provided with an elliptical opening in a plan view having a cross-sectional shape corresponding to the tip 114, and is opened downward from the opening of the upper wall 130, and gradually narrows as it goes downward. Cone shape.

The support base 103 is formed by injection molding of the upper wall 130, the side wall 131, and the inner space 134 by a synthetic resin.

The dividing plate 102 is disposed between the respective tips 114 below the dividing plate 102 on the boundary surface of the supporting base 103, and is provided so as to be orthogonal to the long end edge and parallel to the short end edge, and to straddle the front and rear (tooth surface side) Extending between the two long edges of the front and the inner side of the tooth, and the width and depth are several millimeters. The saw induces a groove 105.

On the other hand, the support base 103 corresponds to the saw-inducing groove 105, and each of the tip insertion holes 106 on the upper surface (of the support base 103) is provided to be parallel to the long-end edge and parallel In the short-end edge manner, the saw standby groove 104 extends between the two long end edges of the front and rear (the front side of the tooth surface is the front and the inner side of the tooth is the rear) and has a width and a depth of several millimeters.

The tip 114 is extended long (or obliquely) to the long end edge of the split plate 102 so as to extend forward and backward (the front side of the tooth surface is the front side and the inner side of the tooth side), and the saw-inducing groove 105 is extended. Between the tips 114, under the split plate 102, a long continuous extension in the front-rear direction is provided at an appropriate interval from the long-end edge.

Further, the tip insertion hole 106 extends long in the direction of the front and rear (the front side of the tooth surface and the rear side of the tooth) so that the top surface of the support base 103 is orthogonal (or oblique) to the long end edge. The saw standby groove 104 is continuous between the tip insertion holes 106, and is continuous on the upper surface of the support base 103 at an appropriate interval from the long end edge toward the front and rear (the front side of the tooth surface is the front and the inner side of the tooth is the rear). extend.

The gypsum-specific saw 9 is placed in the ready state with the saw standby groove 104, and the upper split plate 102 is laminated, and the saw-inducing groove 105 toward the split plate 102 is sawed upward (along line A), so that the branch can be surely secured. A method of dividing the base surface C ₁ of the tooth C.

The support base 103 has a side surface that is inclined, and the support base 103 has a joint surface that is smaller than the bottom surface of the split plate 102. The reason for imparting a gradient to the split plate 102 and the support base 103 is that the tip 114 can be inserted and removed. In this manner, the tip 114 is inserted into the tip insertion hole 106 to form a laminated structure of the support base 103 and the split plate 102, and the separation plate 160 can be pulled out directly upward and downward in the fitting state as many times as necessary. The technical work that is inserted into the repetitive operation, and measures taken in consideration of this operability.

The support base 103 and the split plate 102 are formed of a synthetic resin mixed with an inorganic material. In this embodiment, among the inorganic materials, the compatibility and strength of the resin containing about 35 weight percent of gypsum and the styrene resin containing about 35 weight percent of calcium carbonate are very good.

In particular, the fixed impression die 101 and the split plate 102 can be divided without discomfort, and the split plate 102 is preferably made of other resin containing gypsum or inorganic material similar to gypsum. .

Further, if low foaming is suppressed, it is also possible to use a foamed resin by mixing inorganic materials. By mixing the inorganic material, the dividing plate 102 is a synthetic resin, and when the dividing plate 102 and the stamping model 101 are divided by the technician, the electrostatic charging effect of static electricity due to friction can be prevented.

However, the degree of fitting of the undercut surface of the convex portion 136 to the inclination of the depressed portion is considered, and is not limited to such a combination.

The support base 103 has a fitting base 140 fixed to a lower portion of the side wall 131.

The fitting base 140 has an upper surface that is slightly larger than the bottom surface of the support base 103, and has a rectangular plate shape in plan view. The fitting base 140 is fixed to the bottom surface of the support base 103, and is fitted to the recessed portion 135. The columnar fitting convex portion 142 is provided at a plurality of places between the respective intervals 134 of the tip 114 insertion portion constituting the support base 103.

The fitting convex portion 142 is a prismatic convex portion extending in the front-rear direction, and is in phase Comb-shaped side by side at appropriate intervals.

The fitting base 140 is provided with two slat-shaped holding convex portions 144a and a holding convex portion 144b which are provided at both ends of the bottom surface and which extend to the front and rear short ends, and are provided with a cylindrical adhesive at the center of the lower surface thereof. Projection 146. Therefore, the fitting base 140 is formed by a separating plate 160 that is fitted between the holding convex portion 144a and the holding convex portion 144b that are separated from each other and that is fitted to the adhesive convex portion 146 and has a flexible material. Laminated structure.

The fitting base 140 is formed at an interval 134 at a plurality of places between the insertion portions of the tips 114 of the support base 103, and protrudes to form a plurality of pillar-shaped fitting convex portions 142 that are precisely fitted to a predetermined length.

The fitting base 140 is formed at a four corner of the upper surface, and is formed with a four-corner portion that is formed to be fitted to the support base 103 so as to be fitted upward, and a fitting holding portion 148 for fixing the support base 103 to be closely fixed. The fitting grip portion 148 has elasticity.

The fitting table 140 is formed by a top surface which is larger than the bottom surface of the supporting base 103, and constitutes a simple reverse operation for straight insertion and straight extraction when the articulator 190 is attached and detached.

The separation plate 160 has a rectangular shape in plan view, and has the same thickness as the heights of the two holding convex portions 144a and the holding convex portions 144b of the fitting base 140, and a fitting hole 162 is bored in the center thereof.

The separation plate 160 is formed of a soft rubber or the like.

The separator 160 is made of a flexible material such as resin or rubber, and has flexibility.

Separating plate 160 with soft material can be engaged with dental model When the device 190 is installed, the amount of gypsum used is suppressed to a minimum amount. Further, by making the separation plate 160 flexible, after the patch 7 is produced, the dental mold is detached from the articulator 190, and the gypsum mounting portion is adhered to the center of the bottom surface of the fitting table 140. The columnar adhesion convex portion 146 is attached to the articulator 190 by interposing a separation plate 160 which is tightly fitted and has a flexible material. Therefore, the separation plate 160 having a flexible material is utilized. The removal of the fitting table 140 from the articulator 190 can be performed early and easily.

The fitting device 100 is used in a dental technician and is fixed to an articulator 190 for fixing the impression model 101 of the tooth row.

The articulator 190 is an articulator 190 for fixing the impression model 101 of the dentition in the dental technician, and uses various articulators 190 which are used by the self-study, and the widely used users are generally referred to as the south plus large (spring The articulator 190 of the articulator.

As shown in FIG. 15A and FIG. 15B, the nipper 190 is formed by bending a metal wire into a wide U-shaped sill support portion 191, and then bending the open side thereof vertically upward and interposing a spring 192 in the intermediate portion. The support rib 193a and the support rib 193b are provided with a support hole 194 at the upper end thereof, and the support hole 194 is rotatably attached to the upper cymbal support which is slightly U-shaped with the lower cymbal support portion 191 and slightly folds the open end portion 195. In the portion 196, the overall configuration is bilaterally symmetrical.

The articulator 190 is generally used for the preparation of the patch 7 in the inlay, the braces, the bridge, etc., and the stamp model 101 fixed on the upper and lower support portions can be used for the entire tooth row or can be used only for the single piece. side.

When the denture is produced or the like for other dentures, the tongue and the tongue portion of the upper and lower jaw impression models 101 are also shown in Fig. 23, and the tip 114 is applied to the lower portion of the partition plate 102 to be used. Cases in the full dentition.

Next, a method of fixing the stamp model 101 using the articulator 190 will be described.

First, the fitting base 140 and the separating plate 160 of the fitting device 100 are fixed so as to cover the lower jaw supporting portion 191, and the lower jaw supporting portion 191 is covered with gypsum and adhered to the fitting table 140 and the separating plate. On the 160, the gypsum board 140 and the separation plate 160 are fixed to the lower jaw support portion 191 by using the plaster.

The same applies to the case where the fitting device 100 is fixed to the upper support portion 196.

The division method for dividing the abutment teeth C from the dentition model side will be described below.

The division method includes a first step, a second step, and a third step. In the first step, the split plate 102 is disposed at a fixed position of the support base 103. In the second step, the stamp model 101 is fixed to the split plate 102 by an adhesive. In the third step, after the second step, the fitting device 100 is fixed by the fitting table 140 and the separating plate 160 on the articulator 190, and then the two sides of the abutment teeth C pass through the dividing plate 102. The surface of the saw-inducing groove 105 is divided.

Further included are the third step and the fourth step. In the third step, a gypsum-specific saw 9 is prepared in the saw standby groove 104 of the support base 103, aiming at the both sides of the abutment teeth C of the stamper 101, from the saw-inducing groove 105 of the split plate 102 to near the tooth neck, the saw perpendicular to the base plane up to C _1. This fourth step is performed from the upper portion of the abutment teeth of the stamper 101 to the lower portion to the divided portion of the third step, and is connected to the cut portion of the upper saw in the third step.

The first step is a step in which the support base 103 of the fitting device of the dental model is stacked with the split plate 102, and thus is fitted to each other.

The support base 103 is provided with a tip insertion hole 106, and the tip insertion hole 106 is inserted into the tip 114 of the partition plate 102 so as to be connected to the fixed position.

In order to be able to position the partitioning plate 102 on the upper surface of the supporting base 103, the fixing base 103 is placed at a fixed position in the technical work of inserting and removing the dividing plate 102 a plurality of times, and the supporting base 103 is placed on the saw for standby. The convex portion 136 is provided between the grooves 104 and the vicinity of the tip insertion hole 106. The convex portion 136 is an adjustment surface capable of forming a fine fitting without being bounced, and a lower surface is provided below.

The dividing plate 102 is provided with a concave portion 122 between the bottom surface of the saw-inducing groove 105 and the vicinity of the tip 114, and the concave portion 122 is provided adjacent to the bottom surface of the concave portion 122 corresponding to the lower surface of the convex portion 136 above the supporting base 103. Taper (tilt).

Further, the convex portion 136 provided on one of the bottom surface of the resin split plate 102 and the support base 103 is undercut, and the concave portion 122 is provided with a taper (tilt) corresponding to the convex portion 136. And the composition can be precisely changed by changing the hardness (strength) of the support base 103 and the split plate 102. Chimerism.

Therefore, in the first step, the split plate 102 and the support base 103 can be fitted into a laminated structure as desired.

The second step is a step of placing and fixing the stamp model 101 including the tooth row model of the tooth shape by the gypsum on the upper surface of the partition plate 102.

The base surface C1 of the opposite side of the stamping pattern 101 is formed into a substantially flat surface, and is closely attached to the flat upper surface of the dividing plate 102.

The third step is as in the first embodiment described above.

Next, the base of the dental work model for dentures according to the third embodiment of the present invention will be described with reference to Figs. 21 to 24 .

Because full-mouth active dentures and local active dentures are made outside the mouth, it is necessary to present the state of the mouth as a correct model.

Therefore, the correct impression is required and the correct plaster model is required.

If there is no replica model, the denture is tried in the patient's mouth, and there is a problem that the chair time in the clinic increases.

By using the remaining replica model, the remaining teeth can be checked by the appropriate state (clasp bar) of the hook, the bar and the mucous membrane, and all the dentures of the lingual part, the ankle and the base of the ankle can be confirmed. It is extremely convenient.

According to the base of the present embodiment, when the proper state of the denture is confirmed, it is convenient to check the remaining state of the lingual portion, the crotch portion, and the crotch portion with the dental saw while checking the remaining teeth. .

At this time, if there is a residual tooth portion, a tongue side portion, a crotch portion, and a bottom portion of the crucible, The tip, the support portion, and the maintaining portion can be freely cut and divided by the gypsum replica model, and the split plunger can be freely selected.

The denture attachment direction confirmation, the suitability check, and the occlusion state check in the oral cavity are performed because the remaining tooth portion can be cut and divided, so that the damage can be prevented without causing damage to the replica model.

The base 200 of the dental work model according to the third embodiment of the present invention includes a split plate 202 and a support base 203. The dividing plate 202 and the supporting base 203 correspond to the shape of the stamping model 201, are larger than the stamping model 201, and are arranged in an arc shape in a manner similar to two or more teeth in the same direction, and are provided along the tooth row, The length and width of the gums and upper jaw. The working model according to the embodiment of the present invention is a hand-roll type which is slightly square or has an arc shape around it.

The dividing plate 202 is formed on the bottom surface, faces the lower portion, and has a plurality of planting fins 214 which are parallel to each other and spaced apart from each other, and a saw-inducing groove 205 is provided between the adjacent tips 214 of the bottom surface.

The tips 214 are arranged at positions corresponding to the tooth portions of the stamp model 201, and are irregularly arranged at appropriate intervals along the upper jaw portion. When the split plate 202 is segmented by the saw-inducing groove 205, the tip 214 is arranged such that the tip 214 is present in each of the divided abutment teeth C, and is slightly orthogonal to the upper surface of the split plate 202. And vertically protruding from the abutment tooth C downward.

The saw-inducing groove 205 is formed in a direction in which the tooth row arrangement of the stamp model 201 formed on the upper portion intersects, that is, in the width direction of the split plate 202, and is continuously formed linearly from one end to the other end. Saw-inducing grooves 205 are side by side The plurality of saw-inducing grooves 205 are spaced apart, and are intermittently formed at intervals corresponding to, for example, an adult molar tooth interval, and have a depth at which the edge of the plaster-specific saw 9 can be induced toward the saw-inducing groove 205.

The dividing plate 202 is disposed on a boundary surface with the supporting base 203, and between the respective tips 214 provided on the lower side of the dividing plate 202, and is disposed obliquely to the front and rear end edges (the front end edge of the front tooth side and the rear end edge of the molar side) The first saw-inducing groove 205a and the second saw-inducing method extend across the front and rear end edges, between the front and rear end edges, and between the left and right end edges, and have a width and a depth of several millimeters. The groove 205b and the third saw-inducing groove 205c.

On the other hand, the support base 203 corresponds to the first saw induction groove 205a, the second saw induction groove 205b, and the third saw induction groove 205c (on the support base 203). Each of the tip insertion holes 206 is disposed between the front and rear edges, obliquely intersecting the front and rear end edges (the front end edge of the front tooth side and the rear end edge of the molar side), and obliquely intersecting the left and right end edges. The first saw standby groove 204a, the second saw standby groove 204b, and the third saw standby groove 204c are formed to extend between the front end edge and the left and right end edges, and have a width and a depth of several millimeters.

The first saw-inducing groove 205a is formed in a diagonal line shape from the right end edge to the rear end edge and between the left end edge and the front end edge so as to be slightly between the respective tooth portions.

The second saw-inducing groove 205b is formed in a diagonally upper left direction between the left end edge and the rear end edge, and between the right end edge and the front end edge so as to be slightly between the respective tooth portions.

The third saw-inducing groove 205c is formed between the front end edge and the rear end edge. A shape that spans between the front teeth and the crotch.

The first saw-inducing groove 204a is formed in a diagonally upper right direction between the right end edge and the rear end edge, and between the left end edge and the front end edge so as to be slightly between the respective tooth portions.

The second saw-inducing groove 204b is formed in a diagonally upper left direction between the left end edge and the rear end edge, and between the right end edge and the front end edge so as to be slightly between the respective tooth portions.

The third saw-inducing groove 204c is formed between the front end edge and the rear end edge to form a shape spanning between the front tooth portion and the crotch portion.

The tip 214 is formed on the lower surface of the split plate 202, and is formed at an appropriate interval between the tooth position and the crotch portion of the gingival portion, and the first saw-inducing groove 205a, the second saw-inducing groove 205b, and the third saw-inducing The groove 205c is formed on the lower surface of the partition plate 202 and between the tips 214 so as to intersect each other at an appropriate interval, and has a long continuous extension in the front, rear, and left and right directions.

Further, the tip insertion hole 206 is formed on the upper surface side of the support base 203, and is formed at an appropriate interval between the tooth position and the crotch portion of the gum portion, and the first saw standby groove 204a and the second saw standby groove. The 204b and the third saw standby groove 204c are on the upper surface of the support base 203, and are disposed between the tip insertion holes 206 at intervals corresponding to the positions of the tips 214, respectively, in a front-to-back direction and a left-right direction. It has a long continuous extension.

The gypsum-specific saw 9 is placed along the first saw standby groove 204a, the second saw standby groove 204b, and the third saw standby groove 204c in a prepared state, and the split plate 202 is laminated so as to be directed toward the split plate 202. first saw induced with grooves 205a, induced with the second sawing trenches 205b, and third groove 205c saw induced with up saw (along line a), can reliably ensure the abutment of the base surface C ₁ C The method of segmentation.

On the bottom surface of the partition plate 202, two anti-rotation grooves 210 are formed in parallel so as to be parallel to the saw-inducing groove 205.

On the other hand, the support base 203 is provided with a tip insertion hole 206 for fitting the tip 214, and is disposed between the adjacent tip insertion holes 206 at a position facing the saw-inducing groove 205. The sawing standby groove 204 is used.

When the split plate 202 is fitted to the support base 203, the saw standby groove 204 is formed with a space that faces the saw-inducing groove 205 and has a circular cross section.

Further, the support base 203 is formed with two ridges 213 that are fitted to the anti-rotation groove 210 of the split plate 202.

The tip end 214 of the split plate 202 and the anti-rotation groove 210 are fitted to the tip insertion hole 206 and the ridge 213 of the support base 203, respectively. In accordance with this, the dividing plate 202 and the supporting base 203 are integrated.

At this time, the groove edge of the saw-inducing groove 205 of the split plate 202 and the groove edge of the saw standby groove 204 of the support base 203 coincide with each other, and the saw-inducing groove is determined in a relative state. The position of the groove 205 and the saw standby groove 204.

At this time, the fitting strength of the split plate 202 and the support base 203 is such that it can be an appropriate strength for performing the dental technology work, and the split plate 202 and the support base 203 are products formed by different materials of synthetic resin. By selecting a synthetic resin of a different material, it is easy to adjust the above-mentioned fitting strength to an appropriate value, and it is possible to perform high-precision dentistry stably. Production of patch 7.

In order to be able to position the dividing plate 202 at a fixed position on the supporting base 203, the fixing base 203 is placed at a fixed position in the technical work of inserting and removing the dividing plate 202 a plurality of times, and the supporting base 203 is placed on the saw for standby. A convex portion 236 is provided between the grooves 204 and in the vicinity of the tip insertion hole 206. The convex portion 236 is an adjustment surface that can be formed without being bounced and precisely fitted, and a lower cut surface is given to the lower portion.

The dividing plate 202 is provided with a concave portion 222 between the bottom surface of the saw-inducing groove 205 and the tip end 214, and the concave portion 222 imparts a taper corresponding to the lower surface of the convex portion 236 on the upper surface of the supporting base 203 to the vicinity of the bottom surface of the concave portion 222 ( tilt).

Further, the convex portion 236 provided on one of the bottom surface of the resin split plate 202 and the support base 203 is formed to be undercut, and the concave portion 222 is provided with a taper (tilt) corresponding to the convex portion 236. Further, by changing the hardness (strength) of the support base 203 and the split plate 202, it is possible to precisely fit.

Therefore, in the first step, the split plate 202 and the support base 203 can be fitted into a laminated structure as desired.

At the same time as the preparation of the base for the dental work model is completed, the cutting step of dividing the abutment teeth C is entered.

The cutting preparation of the abutment teeth C is as shown in Figs. 21 to 24, and the fitted split plate 202 is pulled out from the support base 203, and a saw standby groove is provided on the support base 203. In 204, the saw teeth of the plaster-specific saw 9 are mounted upward. In this state, the possession has been set up to induce gypsum The split plate 202 for the saw-inducing groove 205 for the saw 9 is fitted to the support base 203, and the saw standby groove 204 and the saw-inducing formed by the joint surface of the split plate 202 and the support base 203 are formed. The groove 205 is used to hold the state of the gypsum-specific saw 9, and the cutting preparation of the abutment teeth C is completed.

The cutting step of the abutment teeth C is assumed to be cut along the line A shown in Figs. 21 to 24 . In the saw standby groove 204 provided on the support base 203, the gypsum-dedicated saw 9 is attached to the split plate 202 of the stamp model 201 on the upper side with the sawtooth facing upward as described above, and is induced from the lower portion thereof. The above-described saw-inducing groove 205 provided for the plaster-specific saw 9 is directed toward the base surface C _{1 of} the stamp model 201 and upwardly along the line A toward the vertical direction.

In the first half of the cutting operation step of the abutment tooth C, as shown in Fig. 22(A), the two saw standby grooves 204 on the two sides of the divided abutment teeth C or their adjacent positions are given. By cutting, as described above, in the saw standby groove 204 in the two saw standby grooves 204 of the support base 203, the plaster-specific saw 9 is mounted, and the saw-inducing groove from the split plate 202 is used. 205 is perpendicular to the left and right base surfaces C ₁ of the residual teeth C of the hooks of the impression die 201, and the left and right saw teeth standby grooves 204 and the saw standby grooves 204 are parallel to each other. Saw on the saw and stop on the way to end.

At this time, the cut end faces 208 of the abutment teeth C are slightly at the same height position.

The upper end 208 is preferably capable of ensuring the area of the base surface C _{1 of the} abutment tooth C and the strength of use for ensuring the micro-adjustment during operation of the dental technician and in the oral cavity, and preferably reaches the upper portion as much as possible.

The upper portion of the abutment tooth C having a dentition is cut from the left and right adjacent teeth to the second half of the lower saw, and as shown in Fig. 22(B), the left and right sides of the remaining tooth C are sawed down along the line B. The lower end of the cut surface of the lower saw is aligned with the cut end 208 of the upper saw according to the first half of the step, and the cut faces are connected to each other.

When the left and right widths of the residual tooth C are extremely wide at this time, as shown in Fig. 22(B), the stress and the elastic force of the gypsum-specific saw 9 are used, and the width is gradually widened as it goes downward. It is in a state of being in conformity with the cut end face 208 of the saw from the bottom to the top.

As described in detail above, the cutting step of dividing and cutting out the abutment teeth C or the residual teeth C is divided into: from the side of the dividing plate 202, to the middle of the gypsum portion constituting the gum portion of the impression model 201. The first half of the steps and the second half of the step from the upper portion of the gypsum portion to the middle of the gypsum portion of the gingival portion between the dentition teeth constituting the impression model 201 are two steps.

The first half step is performed in the saw standby groove 204 provided on the upper portion of the support base 203, and the gypsum-dedicated saw 9 is mounted upward as shown in the drawing and is extended along the saw standby groove 204, and is fitted and divided. As shown in Fig. 22(A), the state of the plate 202 is a step of sawing upward from the saw-inducing groove 205 toward the upper surface perpendicularly to the joint surface. On the other hand, the second half step is a step of sawing down the line B from the upper two sides of the abutment tooth C as shown in Fig. 22(B).

Such separate grounds for the cutting lines 2 when the phase of the two steps using the anchor tooth is C, can surely ensure the _area of the base surface C, can be prepared to serve as anchor tooth can be performed with high precision dental operations C.

According to the present invention, the shape of the abutment tooth C in the state of the torsion tooth or the dentition is even after the cutting of the abutment tooth C from the upper side of the upper surface of the impression model 201 (the adjacent flank on both sides of the abutment tooth C) It is very small, and the cutting method of the present invention is performed by the sawing-inducing groove 205 from the lower portion of the dividing plate 202. The cutting method of the present invention can surely ensure the dividing plate 202 regardless of the shape of the upper portion of the abutment tooth C. The bottom area of the width between the adjacent saw-inducing groove 205 and the saw-inducing groove 205).

In this case, if there is a tip, a support portion, and a maintenance portion in the remaining tooth portion, the lingual portion, the ankle portion, and the sacral portion, the denture attachment direction in the oral cavity can be confirmed, the appropriateness check, and the occlusion state can be checked. The mounting portion of the human oral cavity such as the false tooth portion, the gum portion, and the crotch portion is closely connected to the vacuum state, and is easily and reliably executed.

The base of the dental work model for dentures of the present invention is not limited to the above embodiment, and various modifications are possible. A related variation will be described with reference to Figs. 25 to 26 .

The base 300 of the dental work model of the variation includes the split plate 302 and the support base 303. The dividing plate 302 and the supporting base 303 correspond to the shape of the stamping model 301, which is larger than the stamping model 301, and the teeth of 2 or more are arranged in a circular arc shape in the same direction in the same direction, and have a tooth row, a gum and The length and width of the upper jaw. The working model of the variation is a semilunar shape having an arc shape around it.

The dividing plate 302 is provided with a plurality of tips 314 which are arranged toward the lower portion and are parallel to each other and spaced apart from each other, and a saw-inducing groove 305 is provided between the adjacent tips 314 of the bottom surface.

The tips 314 are arranged at positions corresponding to the tooth portions of the stamp model 301, and are arranged irregularly across the upper jaw portions at appropriate intervals. When the tip 314 is segmented by the sawing-inducing groove 305, the tip 314 is arranged in each of the divided teeth A, and is orthogonal to the upper surface of the dividing plate 302. It is formed vertically from the abutment tooth C toward the lower side.

The saw-inducing groove 305 is formed in a direction in which the tooth row arrangement of the stamp model 301 formed in the upper portion intersects, that is, in the width direction of the split plate 302, and is continuously formed linearly from one end to the other end. The saw-inducing groove 305 is spaced apart at intervals of the plurality of saw-inducing grooves 305, and is intermittently formed at intervals corresponding to, for example, an adult molar tooth interval, and is provided with a knife edge capable of guiding the gypsum-specific saw 9 to the saw. The depth in which the direction of extension of the trench 305 is induced.

On the other hand, the support base 303 is provided with a tip insertion hole 306 for fitting the tip 314, and is provided at a position facing the saw-inducing groove 305 between the adjacent tip insertion holes 306. The saw is used for the groove 304.

When the split plate 302 is fitted to the support base 303, the saw standby groove 304 forms a circular cross section with respect to the saw induction groove 305.

The tips 314 of the split plate 302 are fitted into the tip insertion holes 306 of the support base 303, respectively. In accordance with this, the dividing plate 302 and the supporting base 303 are integrated.

At this time, the saw-inducing groove 305 of the split plate 302 and the saw standby groove 304 of the support base 303 are aligned with the respective groove edges, and the saw-inducing groove 305 is determined in the relative state. Groove with saw standby The location of 304.

At this time, the fitting strength of the split plate 302 and the support base 303 is such that it can be an appropriate strength for performing the dental technology work, and the split plate 302 and the support base 303 belong to a product formed by a synthetic resin of a different material. By selecting a synthetic resin of a different material, it is easy to adjust the above-described fitting strength to an appropriate value, and the high-precision dental patch 7 can be stably produced.

Further, the split plate 302 shown in Fig. 25 is an integral type, and the split plate 302 shown in Figs. 26A and 26B is divided into a horseshoe type split plate 302A of a gum portion and a half moon type split plate 302B of a meandering portion, which can be easily constructed. Only the horseshoe-type split plate 302A is cut by the gypsum-specific saw 9.

The split plate 302 and the support base 303 shown in Fig. 25 have a smooth planar shape, but the support base 303 of the support base 303 shown in Figs. 26A and 26B has a slightly high horseshoe shape, and the crotch portion 303B is slightly The low half-moon type is provided with a gradient therebetween. When the saw standby groove 304 formed in the gum portion 303A is cut by the gypsum-specific saw 9, the cut thickness of the meandering portion 303B is thin. It is easier to cut the gum portion 303A.

When the split plate 302 is brought into contact with the support base 303, the upper surface of the horseshoe type split plate 302A of the split plate 302 is integrated with the upper surface of the half moon type split plate 302B in a planar shape.

The horseshoe-shaped dividing plate 302A shown in Figs. 26A and 26B is disposed on the boundary surface with the supporting base 303, and between the respective tips 314 provided under the horseshoe-shaped dividing plate 302A, is provided obliquely to the outer end edge and obliquely Medial edge The first saw-inducing groove 305a extends across the front and rear sides (the front side of the tooth surface is the front side and the inner side of the tooth side is the rear) extending between the outer end edge and the inner end edge, and having a width and a depth of several millimeters.

The half-moon type dividing plate 302B is formed with a plurality of third saw-inducing grooves 305c from the front tooth side (hard crotch side) toward the caries side (soft crotch side). The horseshoe-shaped dividing plate 302A may form the third saw-inducing groove so as to be continuous with the third saw-inducing groove 305c, but may not be formed.

On the other hand, the support base 303 corresponds to the first saw-inducing groove 305a and the third saw-inducing groove 305c, and is disposed between the respective tip insertion holes 306 (on the support base 303). There is a manner of obliquely intersecting the outer end edge of the gingival portion 303A and obliquely intersecting the inner end edge of the gingival portion 303A, extending across the front and rear (the front side of the tooth surface is the front side and the inner side of the tooth side) between the outer end edge and the inner end edge. The first saw standby groove 304a has a width and a depth of several millimeters.

The dam portion 303B of the support base 303 is formed with a plurality of third saw standby grooves 304c from the front tooth side (hard crotch side) toward the gingival side (soft crotch side), and the gingival portion 303A of the support base 303 is continuous. In the third saw standby groove 304c, a plurality of second saw standby grooves 304b are formed.

The tip 314 is formed on the lower surface of the split plate 302, and is formed at an appropriate interval between the tooth position and the crotch portion of the gum portion, and the first saw-inducing groove 305a and the third saw-inducing groove 305c are formed between the tips 314. The lower surface of the partition plate 302 is radially extended continuously in the front-rear direction at an appropriate interval.

Further, the tip insertion hole 306 is formed on the upper surface side of the support base 303, and is formed at an appropriate interval between the tooth position and the crotch portion of the gum portion, and the first saw standby groove 304a and the second saw standby groove. The 304b and the third saw standby groove 304c are between the tip insertion holes 306, and correspond to the position of the tip 314, and are radially radiated to the front and rear directions at appropriate intervals on the upper surface of the support base 303. Continuous extension.

The third saw standby groove 304c and the third saw induction groove 305c are formed when the dam portion and the front tooth portion of the stamp 301 are cut.

The gypsum-specific saw 9 is placed along the first saw standby groove 304a, the second saw standby groove 304b, and the third saw standby groove 304c in a prepared state, and the upper split plate 302 is further laminated to the split plate 302. The first saw-inducing groove 305a and the third saw-inducing groove 305c are sawed upward (along line A), and the method of dividing the base surface C1 of the abutment tooth C can be surely ensured.

The abutment of the dental engineering work model of the present invention mainly records the cases of paralysis, but even the total paralysis cases can fully respond.

Up to now, in the case of the whole sputum, the tongue and the sac portion have been implanted in the lower part of the dividing plate 2, so that it is difficult to visually confirm, but the abutment of the dental work model of the present invention can be performed. Appropriate confirmation of the intraoral contact between the edge of the denture and the base of the denture can be fully satisfied.

As shown in Fig. 27, the dividing plate 102 of the modified example has a position mark 102M for confirming the position of the tip 114 when the gypsum tooth type of the patient is adhered to the patient by the adhesive.

The position marker 102M can arbitrarily select shapes such as a circle mark, a double circle mark, a character, a number, a mark, and the like.

Further, when the split plate 102 is adhered to the gypsum tooth shape by the adhesive on the upper portion thereof, even if a large amount of the adhesive is applied, the adhesive agent does not leak to the lower support base 103, as shown in FIG. As shown, an annular or angular annular recess 102r is formed. The concave strip 102r is formed by engraving using a round rail.

The dividing plate 102 of the variation is formed on the upper portion thereof as shown in Fig. 28, and the dimple-like fine concave (pit) hole 102d is formed finely. The hole 102d is formed to prevent leakage of the adhesive when the gypsum tooth type is adhered by an adhesive.

When the position marker 102M cuts the split plate 102 by the plaster-specific saw 9, the previous tip 114 position mark 102M is superimposed on the patient's plaster tooth type model, and it is impossible to confirm. Therefore, as shown in FIG. 29, the dividing plate 102 of the modified example can be formed by forming a parallel line mark 102L in a groove shape on one side or both sides from the position mark 102m of the tip 114, and the position of the river can be confirmed.

When the line mark 102L is formed on one side, as shown in Fig. 30, the support base 103 is connected to the front wall, and a line mark 103L is formed in a groove shape in the extension of the line mark 102L.

The line mark 102L and the line mark 103L are configured such that the upper dividing plate 102 is divided by the gypsum-dedicated saw 9 and the regular direction (face orientation) can be confirmed in the operation of returning to the support base 103.

The dividing plate 102 is attached to the patient's gypsum tooth type by using an adhesive. After the plate 102 is divided, the gypsum-specific saw 9 is used for division.

Then, in the dental technology work, the gypsum tooth form of the patient and the split plate 102 are cleaned by using hot water or the like, and a plurality of persons can be mixed in the work.

At this time, it is convenient to record the inquiry number of the partition plate 102 on a part of the board.

For example, the dividing plate 102 is formed by using four molds, and it is convenient to use the symbols A, B, C, and D to determine the A plate, the B plate, the C plate, and the D plate, so that work efficiency can be improved.

As shown in FIGS. 21 and 22, the splitter plate 102 is inscribed with a query number 102N on the flat portion of the tip end portion of the tip 114, or an engraved query number 102N is printed on the lateral surface of the tip 114.

Alternatively, the inquiry number 102N may be formed in a position such as a lateral edge portion of the partition plate 102, an upper surface portion of the partition plate 102, a back surface portion, and the like.

The method of describing the query number 102N can be formed by engraving at the time of forming the split plate 102.

Industrial availability

The base of the model for the dental technology work of the present invention is used for the production of dental patches and dentures, and can be widely used in dental work.

A‧‧‧Attachment of abutment teeth using a saw

B‧‧‧Aged severance line from the top with a saw

C‧‧‧ abutment teeth, residual teeth

C1‧‧‧ basal plane

D‧‧‧Normal dentition cases using a saw to cut the line from the top

E‧‧‧Dental drill

F‧‧‧Truncation

L‧‧‧ barrel-shaped depression

M‧‧‧ recessed depression

N‧‧‧Linear groove

1, 101, 201, 301‧‧‧ impression model

2, 102, 202, 302‧‧‧ split board

3, 103, 203, 303‧‧‧ support abutments

4, 104, 204, 304‧‧‧ saw standby groove

5, 105, 205, 305 ‧ ‧ sawing groove

6, 106, 206, 306‧ ‧ ‧ tip insertion hole

7‧‧‧ Patches

8, 208‧‧‧ upper end

9‧‧‧Gypsum saw

10,210,1013‧‧‧ anti-rotation ditch

13, 213‧‧ ‧ ribs

14, 114, 214, 314‧ ‧ ‧

100‧‧‧Mixed device

102d‧‧‧ hole

102L‧‧‧ line sign

102M‧‧‧Location Mark

102N‧‧‧ inquiry number

102r‧‧‧recesses

103L‧‧‧ line sign

122, 222‧‧‧ recess

130‧‧‧上壁

131‧‧‧ side wall

132‧‧‧ front wall

133‧‧‧ Back wall

134‧‧‧ interval

135‧‧‧Depression

136, 236‧‧ ‧ convex

140‧‧‧ fitting table

142‧‧‧ fitting convex

144a, 144b‧‧‧ Keeping the convex part

146‧‧‧Adhesive convex

148‧‧‧Chisel Training Department

160‧‧‧Separation board

162‧‧‧ fitting holes

190‧‧‧bite

191‧‧‧ Lower jaw support

192‧‧ ‧ spring

193a, 193b‧‧ ‧ pillar

194‧‧‧Support hole

195‧‧‧ Open end

196‧‧‧Upper support

204a, 304a‧‧‧1st saw standby groove

204b, 304b‧‧‧2nd saw standby groove

204c, 304c‧‧‧3rd saw standby groove

205a, 305a‧‧‧1st slot for sawing induction

205b‧‧‧2nd sawing groove

205c, 305c‧‧‧3rd slot for sawing induction

300‧‧‧Abutment

302A‧‧‧ Horseshoe Splitter

302B‧‧‧Half-month splitter

303A‧‧‧dental part

Section 303B‧‧‧腭

1001‧‧‧Reproduction model

1003‧‧‧Working abutments

1011‧‧‧Locating pin

1012‧‧‧Base surface

1012‧‧‧ joint surface

Fig. 1 is an exploded perspective view showing an example of a base for dental work according to the present invention.

2 is a schematic perspective view of a support base of the present invention.

Figure 3 is a top plan view of a method of manufacturing a dental model of the present invention.

4 is a front elevational view showing a method of manufacturing a dental model of the present invention.

Figure 5 is a top plan view of a method of manufacturing a dental model of the present invention.

Figure 6 is a front elevational view showing the method of manufacturing the dental model of the present invention.

Figure 7A is a top plan view of the abutment teeth that have been severed in accordance with the method of the present invention.

Figure 7B is a bottom plan view of the abutment teeth that have been severed in accordance with the method of the present invention.

Figure 7C is a front elevational view of the abutment teeth of the severed separation in accordance with the method of the present invention.

Figure 7D is a rear elevational view of the abutment teeth of the severed separation in accordance with the method of the present invention.

Figure 7E is a right side view of the abutment teeth that have been severed in accordance with the method of the present invention.

Figure 7F is a left side view of the abutment teeth that have been severed in accordance with the method of the present invention.

Fig. 8A is a perspective view showing an example of a supporting base.

Fig. 8B is a perspective view showing an example of a supporting base.

Fig. 8C is a perspective view showing an example of a supporting base.

Fig. 9A is a plan view showing an example of a dividing plate according to an embodiment of the present invention.

Figure 9B is a perspective view of a step of a dental procedure.

Figure 9C is a perspective view of a step of a dental procedure.

Figure 10 is an exploded perspective view of an example of a fitting device for a dental model of the present invention. Schematic diagram.

Figure 11 is a plan view of a support base and a saw preparation state of the fitting device of the dental model of the present invention.

Fig. 12 is an exploded perspective view showing the supporting base and the fitting table of the fitting device of the dental model of the present invention.

Fig. 13 is a view showing a lamination step of Figs. 1, 2, and 3 of the fitting device for a dental model of the present invention.

Fig. 14 is a view showing the completion of lamination of the fitting device of the dental model of the present invention.

15A and 15B show an example of the installation of the articulator of the dental model of the present invention.

Figure 16 is a plan view of a split embodiment from the support base of the present invention.

Figure 17 is a front elevational view of a split embodiment from a support abutment of the present invention.

Figure 18 is a front elevational view showing the embodiment in which the abutment teeth of the present invention are completed.

Figure 19 is a plan view of a split embodiment from the top of the abutment teeth of the present invention.

Figure 20A is a top plan view of the severed abutment teeth.

Figure 20B is a bottom plan view of the cut abutment teeth.

Figure 20C is a front elevational view of the severed abutment teeth.

Figure 20D is a rear view of the severed abutment teeth.

Figure 20E is a left side view of the severed abutment teeth.

Figure 20F is a right side view of the severed abutment teeth.

Fig. 21 is a schematic view showing a method of manufacturing a dental model of the present invention, (A) is a bottom view view, and (B) is a plan view.

Fig. 22 is a cross-sectional view showing the method of manufacturing the dental model of the present invention, and Fig. 21 is a cross-sectional view in the X direction, (A) is the first half step, and (B) is the schematic view of the second half step.

Fig. 23 is a schematic view of a dividing plate, (A) is a plan view, and (B) is a side view.

Fig. 24 is a schematic view showing a supporting base, (A) is a bottom view view, and (B) is a cross-sectional view.

Fig. 25 is a perspective schematic view showing a modification of the split plate and the support base.

Fig. 26A is a perspective schematic view showing a modification of the split plate and the support base.

Fig. 26B is a plan view showing a state in which the split plate to which the stamp model of the modification shown in Fig. 26A is fixed and the support base are joined.

Fig. 27 is a perspective schematic view showing a variation of the split plate.

Fig. 28 is a perspective schematic view showing a variation of the split plate.

Fig. 29 is a perspective schematic view showing a variation of the split plate.

Figure 30 is a perspective schematic view showing a variation of the split plate and the support base.

Fig. 31 is a perspective schematic view showing a variation of the split plate.

Fig. 32 is a perspective schematic view showing a variation of the split plate.

Figure 33 is a front elevational view of a conventional abutment.

Figure 34 is a top plan view of a conventional manufacturing method.

Figure 35A is a top plan view of abutment teeth cut in accordance with conventional methods.

Figure 35B is a bottom plan view of the abutment teeth cut in accordance with conventional methods.

Figure 35C is a front elevational view of the abutment teeth cut in accordance with conventional methods.

Figure 35D is a rear view of the abutment teeth cut in accordance with conventional methods.

Figure 35E is a left side view of the abutment teeth cut in accordance with conventional methods.

Figure 35F is a right side view of the abutment teeth cut in accordance with conventional methods.

2. . . Splitter

3. . . Support abutment

4. . . Saw standby groove

5. . . Saw-inducing groove

6. . . Tip insertion hole

10. . . Anti-rotation ditch

13. . . Rib

14. . . Tip

Claims (7)

A base for a dental work model consisting of: a split plate on which an impression model is placed, and a support base integrally joined to the split plate; a base of the dental work model formed; wherein the split plate system a plurality of grooves are disposed on a surface of the support base, and a tip is disposed between each of the grooves; the support base is respectively provided with a groove corresponding to each of the grooves, and is respectively provided with a recess A hole of each of the tips is inserted, and the split plate is joined to the support base in a state in which each of the tips is fitted into each of the holes. The base of the dental work model of claim 1, wherein the split plate is formed of a synthetic resin mixed with gypsum, talc, and an inorganic material having a hardness of 1 degree, and is integrally formed with the tips. A fitting device for a dental work model, comprising: a support base made of resin; a split plate made of resin, the lower portion having a plurality of tips formed by a group, the tips being detachable The manner of supporting the fixed position of the abutment is coupled; an impression model is placed on the dividing plate; and a fitting platform having a plurality of columnar convex portions respectively tightly fitted to a recessed portion, The recessed portions are respectively located between the plurality of tip insertion holes on the support base; wherein the tip insertion holes of the support base cause the tips to be inserted Inserting and inserting the tips in the tip insertion holes, respectively, forming a state in which the partition plate is coupled to the support base fixed position, and the groove of the split plate is on the boundary surface between the split plate and the support base. Below the splitter plate, the tooth spacing of the impression model is spaced between the tips of the split plate, respectively, and extends from the front end to the saw-inducing groove at the rear end; the groove of the support abutment Corresponding to the saw-inducing groove, a saw standby groove extending between the tip insertion holes on the support base; a saw is inserted between the saw-inducing groove and the saw standby groove, The saw-inducing groove from the split plate is sawed toward the gypsum portion of the stamp mold. The fitting device of the dental work model of claim 3, wherein the fitting table has an upper surface that is larger than a lower surface of the supporting base, and has two sides across the short side at both ends of the bottom surface thereof. A convex portion extending at the end and a convex portion having a columnar shape are formed on the lower surface thereof. Further, the cylindrical convex portion is further fitted with a separating plate of a flexible material. The fitting device of the dental work model of claim 3, wherein the supporting base has: a convex portion formed to be cut, and in which the supporting base and the dividing plate are stacked, the mutually engaging The structure is coupled to the fixed position; the dividing plate has: a concave portion provided with a taper, the taper corresponding to the supporting base The undercut of the lower portion of the convex portion of the face. A manufacturing method for a dental work model includes: a first step of preparing a dividing plate having a plurality of grooves and respectively providing a tip between the grooves, and a supporting base, wherein the supporting base is provided a tip insertion hole fitted into the tips and a groove respectively provided corresponding to each of the grooves of the split plate, and the tips are fitted into the tip insertion hole by the split plate Joining the support base to form a base; in the second step, an impression model is adhered to the split plate by an adhesive; and in the third step, one of the impression models adhered to the upper portion is attached The two sides of the tooth are sawed from the groove of the dividing plate; and in the fourth step, the saw is cut from the upper side of the two sides of the tooth. A method for manufacturing a dental work model includes the first step of inserting a tip into a tip insertion hole by inserting and inserting a tip, and arranging the split plate at a fixed position of the support base; The step of fixing the stamp model to the split plate by using an adhesive; in the third step, the saw is used along the support base for the saw standby groove, aiming at the two sides of the support model of the die, the saw from the split plate The inducing groove starts to be sawed up to the dividing and moving portion near the neck of the impression model; and the fourth step is to cut from the upper side of the abutment tooth of the impression model to the third step. Department, and with the third step mentioned above The cut portions of the upper saw are connected.