KR20080041973A - Model instruments for the preparation of dental prostheses - Google Patents

Abstract

A model device for preparing dental prosthesis is provided to reduce the dental prosthesis preparing time by one and a half hour by excluding grinding and pin and base fixing processes and directly skipping to a cutting process. In a model device for preparing dental prosthesis, a tooth model fixing base(110) supports and fixes the lower part of a cured tooth model, contains a magnet(140) in a space formed inside, and attaches and detaches a support plate unit(120) implanted at the lower part of the tooth model formed by curing dental plaster, by magnetic force of the magnet. The support plate unit is formed by mixing one or at least two of iron powder, plated and coated iron powder, stainless powder stuck on the magnet, magnetite, and raw ore powder of the magnet, with plaster or plastic. The support plate unit is detachable from the upper part of the tooth model fixing base. A fixing band(130) is installed at the periphery of the tooth model fixing base attached to dental plaster, when dental plaster is cured on a tooth intaglio model. The magnet is filled into the space formed in the tooth model fixing base.

Description

Model Apparatus for Dental Prosthesis Preparation {.}

1 is an exploded perspective view of a model mechanism for preparing a dental prosthesis according to an embodiment of the present invention

Figure 2 is a side view of the model prosthesis preparation for teeth according to an embodiment of the present invention

Figure 3 is a perspective view showing the lower portion of the model mechanism for preparing a dental prosthesis according to an embodiment of the present invention

FIG. 4 is a view illustrating a dental model in which dental plaster is cured in an intaglio pattern of a tooth in a model prosthesis preparation model device according to an embodiment of the present invention is installed in a dental articulator; FIG.

5 is a view showing that one side of the fixing band in the model prosthesis preparation model teeth according to an embodiment of the present invention

FIG. 6 is a view schematically showing that dental gypsum is filled in a negative pattern of a patient's teeth in a model prosthesis preparation model according to an embodiment of the present invention.

FIG. 7 is a view schematically illustrating that a tooth model fixing base is attached to a surface of a dental plaster cured in an intaglio pattern of a tooth in a model prosthesis preparation model tooth according to an embodiment of the present invention; FIG.

8 is a view showing that the dental model cured in the model prosthesis preparation model tooth for removal according to the embodiment of the present invention and the tooth model fixed base.

9 is a view showing that the tooth model fixed base is installed on the tooth model fixed base support working plate in the model prosthesis preparation model according to another embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

110: tooth model fixed base 120: support plate portion

130: fixed band 140: magnet

The present invention relates to a dental prosthetic preparation model apparatus, and more particularly, dental gypsum filled in the negative pattern of the patient's teeth during the prosthetic or implant procedure is cured to form a tooth model, the base and the tooth model is cured The present invention relates to a model device for preparing a dental prosthesis, which facilitates detachment of the cured tooth model by using a magnet, thereby shortening the production time required for the prosthetic and implant procedures, and without waste of materials.

More basic dental treatments for restoring tooth decay or damaged teeth include extraction of teeth and replacement with artificial teeth (implants), and removal of dental caries and the prosthetic operation.

In a typical artificial tooth treatment method, when a dental hospital draws a negative pattern of part or all of the teeth of a patient and sends it to a laboratory, when the plaster is hardened after pouring dental plaster on the pattern of the patient's teeth, Work is progressed by fixing to the base part.

Here, the base part may be referred to as a kind of support for seating a tooth model for fixing the tooth model so that subsequent work on the tooth model can be easily performed. The above process is performed by using the model tooth. A grinding process of grinding with a grinder to flatten the bottom surface of the model tooth to manufacture the prosthesis; A drilling process for drilling a hole in the center of the lower end of the model tooth to be prosthetic among the ground model teeth; A fixed pin insertion process for inserting a fixed pin into the perforated hole; A base forming process of filling dental cement in a mold of a predetermined shape to fix the lower end of the model tooth into which the fixing pin is inserted, and placing the model tooth into which the fixing pin is inserted; It consists of a cutting process of cutting with a saw to remove only the model tooth portion for prosthetics to fix the model teeth fixed to the top of the base.

It is to produce a tooth prosthesis with the cut model teeth.

However, in order to perform the conventional prosthetic work, not only the work time required for the process takes a long time due to the base forming process in preparation of the model tooth, but also the base part formed once cannot be used for other work, and thus must be disposed of. There was a serious waste.

SUMMARY OF THE INVENTION An object of the present invention devised to solve the above problems is to provide a model prosthesis preparation model device for tooth prosthesis preparation that shortens the time of the tooth model production process required for prosthetic work and reduces waste of materials. .

In addition, another object of the present invention, the grinding process, pin fixing process and base fixing process of the conventional tooth prosthetic preparation method is not necessary, just by going to the cutting process, about one and a half hours of preparation of the dental prosthesis In short, the result is to provide a more effective and efficient model of dental prosthetic preparation without waste of material and time spent on the patient's seat.

A model prosthesis preparation model according to the present invention devised to achieve the above object is attached to the surface of the dental gypsum before the dental gypsum is solidified in the negative pattern of the patient teeth, the dental gypsum curing It is characterized in that the support for the tooth model is made, by detaching the tooth model by the magnetic force of the magnet housed therein.

In addition, the dental prosthesis preparation model mechanism according to an embodiment of the present invention is fixed to the lower portion of the dental model to be cured, and accommodates a magnet in a space formed therein, the dental plaster by the magnetic force of the magnet Tooth base fixing base for detaching the supporting plate portion implanted in the lower part of the tooth model formed by curing, iron powder, gypsum and iron on gypsum or plastic, stainless steel powder attached to magnet, magnetite and gemstone powder of magnet Mixed or formed by mixing any two or more, the support plate is formed to be detachable to the upper portion of the dental model fixed base, when the dental plaster is cured on the tooth engraved bone, the tooth attached to the dental plaster A fixed band installed around the model fixing base and a space formed inside the tooth model fixing base. Which includes a magnet.

In addition, the tooth model fixed base, a plurality of guides formed to protrude outwardly to fit into a plurality of through-holes formed in the step portion and the plurality of through-holes formed in the outer side so that the fixing band is installed around the periphery. A projection, a magnet accommodating portion having a space formed therein to accommodate the plurality of magnets, protruded outward from a lower part of the tooth model fixing base, and formed to be inclined at a predetermined angle from a lower part to an upper part, the lower part of the tooth model fixing base and the inclination angle Dental gypsum poured into the articulator side plate penetrates and the dental gypsum is cured so that the dental model is fixed to the dental gypsum support member and the inner end of the magnet accommodating part so as to be fixed to the articulator side plate. Fixed magnet formed to hold and support a plurality of magnets It includes a.

In addition, the support plate, a plurality of through-holes are formed to be fitted to a plurality of guide projections formed on the tooth model fixing base, formed smaller than or equal to the area of the upper part of the tooth model fixing base, filled in the negative bone of the patient teeth After the tooth model fixing base is attached to the surface of the dental gypsum, the dental gypsum is cured and implanted in the lower part of the tooth model formed to cure the dental model.

In addition, the model mechanism for preparing a dental prosthesis according to an embodiment of the present invention, any one of the iron powder, plated and coated iron powder, stainless steel powder attached to the magnet, magnetite and gemstone powder of the magnet instead of the support plate portion Mixing or mixing any two or more to form a powder form is poured on top of the dental model fixed base, the dental model fixed base is attached to the dental plaster filled in the engraved pattern of the patient's teeth are cured together and the dental model is Characterized in that made.

In addition, the dental prosthesis preparation model mechanism according to another embodiment of the present invention, a tooth model fixed base support working plate for supporting and detaching a plurality of tooth model fixed base, respectively, detachable to the tooth model fixed base support working plate And a tooth model fixing base detachably attached to an upper portion of the tooth model fixing base and a tooth model fixing base attached to and detached from the upper portion of the tooth model fixing base so as to be implanted in a lower portion of the dental model in which dental plaster is cured in the negative pattern of the patient's teeth. When the dental gypsum is cured in the support plate portion and the dental engraved bone which are attached to the surface of the dental gypsum and implanted in the lower part of the dental model in which the dental gypsum is cured and mutually detached from the dental model fixing base. The curing is installed around the tooth model fixed base attached to the plaster And a fixing band for uniformizing the face of the tooth model contour formed therein.

In addition, the tooth model fixed base support working plate, the magnet is attached to both sides, the magnet is attached to the magnet receiving portion of the tooth model fixed base in the state that the magnet is attached, one side and the other side length of the tooth model fixed base It includes a dental model fixed base support that is fixed in the horizontal direction so as to protrude to the outside and a magnet attached to the upper sides of the plurality of tooth model fixed base support.

In addition, the tooth model fixed base, a plurality of guides formed to protrude outwardly to fit into a plurality of through-holes formed in the step portion and the plurality of through-holes formed in the outer side so that the fixing band is installed around the periphery. A magnetic receiving unit having a space formed therein to receive the protrusion, the magnet attached to the upper portion of the dental model fixing base support, and the dental plaster which is cured by being buried in the dental plaster poured on one side of the articulator when fixed to the articulator Dental gypsum support member for supporting and the inner end of the magnet receiving portion includes a magnet fixing protrusion formed to fix and support a plurality of magnets are overlapping and received.

In addition, in the dental appliance prosthesis preparation model apparatus according to another embodiment of the present invention, any one of iron powder, plated and coated iron powder, stainless steel powder attached to the magnet, magnetite and gemstone powder of the magnet is mixed with gypsum or plastic Or, it is formed by mixing any two or more of the dental model fixed base is poured on the base, the dental gypsum filled in the negative pattern of the patient teeth is attached to the dental model fixed base, characterized in that the dental model is made .

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the model prosthesis preparation for teeth according to the present invention.

1 is a perspective view of a model prosthesis preparation model device for dental prosthesis according to an embodiment of the present invention, Figure 2 is a side view of the model prosthesis preparation device according to an embodiment of the present invention.

1 and 2, the dental prosthesis preparation model apparatus according to the present invention includes a dental model fixing base 110, a support plate 120, a fixing band 130, and a magnet 140. .

The tooth model fixing base 110 includes an induction protrusion 111, a barrier 112, a magnet accommodating portion 113, a magnet fixing protrusion 114, and a dental plaster support member 115.

The barrier portion 112 is formed to be flat at a predetermined interval to the outside so that the fixing band 130 is installed around the lower portion of the dental model fixing base 110.

A plurality of induction protrusions 111 are formed to protrude outward to be fitted into a plurality of through holes 121 formed in the support plate 120.

At this time, the guide protrusion 111 is preferably formed so that the size of the guide protrusion 111 is small so that one side of the tooth model fixing base 110 is cured premolar tooth model, the other side is induced to cure the molar tooth model It is preferable that the size of the protrusion 111 is formed to be relatively larger than the guide protrusion on the other side.

The magnet accommodating part 113 has a space formed therein to accommodate the plurality of magnets 140.

At this time, the magnet receiving portion 113 is received in the longitudinal direction of the dental model fixing base 110, according to the present invention, it is preferable that about four are accommodated.

The magnet fixing protrusion 114 is formed on both sides to fix and support the plurality of magnets 140 that are overlapped and accommodated at the inner end of the magnet accommodating part 113.

On the other hand, the fixing band 130 is installed around the jaw portion 112 of the dental model fixing base 110.

That is, the dental gypsum surface and the dental model fixing base 110 which are poured into the intaglio pattern of the patient's teeth in a state where the fixing band 130 is installed on the jaw portion 112 of the dental model fixing base 110 are attached. After the dental plaster is cured, the fixing band 130 is separated from the tooth model 400 and the tooth model fixing base 110, and the shape of the circumference of the tooth model 400 is uniformly and smoothly formed.

In addition, it is preferable to install the fixing band 130 on the jaw portion 112 of the dental model fixing base 110 before being attached to the surface of the plaster, but is not limited thereto.

The support plate portion 120 is formed by mixing any one or a mixture of iron powder, iron powder coated and coated with iron powder, stainless steel powder attached to the magnet, magnetite and magnet ore powder in the gypsum or plastic, It is formed to be removable on the dental model fixing base.

At this time, the support plate 120 is formed with a plurality of through-holes 121 passing through the upper and lower surfaces to be fitted to the guide protrusion 111 of the upper teeth model fixing base 110, the upper teeth model fixing base 110 It is preferably formed smaller than or equal to the area of.

That is, after the guide protrusion 111 is inserted into and detached from the through-hole 121 of the support plate 120, the dental model fixing base 110 is attached to the surface of the dental plaster filled in the negative pattern of the patient's teeth. The gypsum is implanted in the lower part of the tooth model formed by curing, so that the tooth model fixing base and the tooth model are detachable.

In addition, the dental model fixing base 110, the guide protrusion 111, the jaw portion 112, the magnet housing portion 113, the magnet fixing protrusion 114 and the support member 115 in the shape of the oral cavity. It may be formed in an arch shape according to one side, such as one side of the oral cavity.

Figure 3 is a perspective view showing a lower portion of the tooth prosthesis preparation model apparatus according to an embodiment of the present invention, Figure 4 is a dental implant in the intaglio pattern of teeth in the tooth prosthesis preparation model apparatus according to an embodiment of the present invention It is a figure which shows that the dental model by which the plaster is cured was installed in the dental articulator.

3 and 4, the dental gypsum support member 115 is formed to protrude outward from the lower portion of the dental model fixing base 110, and is formed to be inclined at a predetermined angle from the bottom to the top.

That is, the dental gypsum support member 115 is a dental gypsum 300 poured into the dental articulator 500, both sides of the plate in the dental model fixed base 110 and the inclination angle is infiltrated into the dental gypsum 300 If the curing is to be fixed to the dental model fixed base 110 to the dental articulator 500, both sides of the plate.

5 is a view showing that one side of the fixing band in the model prosthesis preparation model teeth according to an embodiment of the present invention.

Referring to Figure 5, the fixing band 130 according to the present invention, made of a plastic material, when the dental gypsum is cured in the tooth engraved bone, the dental model fixed base (attached to the dental plaster ( It is installed around the barrier 112 of the 110, as shown, is formed on one side of the fixing band 130 to be split in the longitudinal direction, when the separated portion of the fixing band 130 is separated from both sides of the tooth model It is easy to insert or withdraw from the barrier 112 of the fixed base 110.

Hereinafter, a process of preparing a dental prosthesis using the model apparatus for preparing a dental prosthesis according to the present invention will be described in detail.

FIG. 6 is a view schematically showing that dental gypsum is filled in an intaglio pattern of a patient's tooth in a model prosthesis preparation model device according to an embodiment of the present invention, and FIG. 7 is a view illustrating an embodiment of the present invention. FIG. 8 is a view schematically illustrating that a dental model fixing base is attached to a surface of a dental plaster cured in a negative pattern of a tooth in a model prosthesis preparation model for tooth prosthesis, and FIG. It is a figure which shows that the tooth model hardened by the model apparatus is detachable from the tooth model fixed base.

Referring to FIGS. 6 to 8, first, an impression material is injected onto a tray 200 to imprint a tooth in a patient's mouth, and then an impression of a patient's tooth is obtained.

The dental gypsum 300 is filled in the intaglio of the patient teeth thus obtained.

Then, the cracked portion of the fixing band 130 is separated on both sides of the jaw portion 112 of the dental model fixing base 110 to be inserted into the jaw portion 112 of the dental model fixing base 110, and guided to the upper portion. The support plate 120 is inserted into the protrusion 111.

Then, four magnets 140 are stored in the magnet accommodating part 113 formed in the tooth model fixing base 110.

In this case, the magnet 140 is fixedly supported by the magnet fixing protrusion 114 formed at the inner end of the magnet accommodating part 113.

Subsequently, the dental model fixing base 110 is attached in the direction in which the support plate 120 is attached to the dental gypsum 300 poured in the negative pattern 300 of the patient teeth.

At this time, instead of the support plate 120 attached to the guide protrusion 111 of the tooth model fixing base 110, iron powder, iron plated and coated on the gypsum, stainless steel powder attached to the magnet, magnetite and gemstone powder of the magnet One or a mixture of two or more of them may be poured onto the dental model fixing base 110 and attached to the dental gypsum 300 filled in the negative pattern of the patient's teeth.

Thereafter, when the dental gypsum 300 filled in the intaglio pattern of the patient teeth flows for a predetermined time (about 30 minutes), the dental model 400 is formed when the dental gypsum 300 is hardened.

Next, the tooth model 400 is separated from the tray 200, and then the part of the fixing band 160 formed on the jaw portion 112 of the tooth model fixing base 110 is spaced apart from both sides to fix the tooth model. Remove from base 110.

At this time, the support plate 120 is implanted in the lower portion of the dental model 400, which is the dental gypsum 300 is cured.

That is, the support plate portion 120 implanted under the dental model fixing base 110 is included in the iron powder (plated and coated iron powder, stainless steel powder adhering to the magnet, magnetite and magnet powder among the powder) or support The tooth model is fixed by the magnetic force of the magnet 140 accommodated in the magnet accommodating part 113 of the tooth model fixing base 110 due to the iron powder included in the plaster poured on the tooth model fixing base 110 instead of the plate part. The base 110 and the tooth model 400 are easily detached from each other.

In addition, when the dental model 400 is detachably attached to each other, the dental model fixing base 110 is more firmly supported by the guide protrusion 111.

Next, the tooth model 400 attached to the upper part of the tooth model fixing base 110 is separated, and a necessary portion is cut by a cutting means to perform a prosthetic operation using the cut tooth model 400.

Meanwhile, as described above, when the dental model 400 is attached to the dental model fixing base 110 to pour the dental plaster 300 on both sides of the dental articulator 500 to cure the dental model fixing base 110, The articulator 500 may be fixed to both sides of the plate.

9 is a view showing that the tooth model fixed base is installed on the tooth model fixed base support working plate in the model prosthesis preparation model according to another embodiment of the present invention.

Referring to Figure 9 will be described in detail with respect to the model prosthesis preparation for teeth according to another embodiment of the present invention.

The model prosthesis preparation model according to another embodiment of the present invention includes a tooth model fixing base support working plate 600, a tooth model fixing base 110, a support plate unit 120, and a fixing band 130.

The tooth model fixed base support working plate 600 includes a tooth model fixed base support 610 and a magnet 140.

The dental model fixing base support 610 is inserted into and supported by the magnet housing portion 113 of the dental model fixing base 110 in a state in which the magnet 140 is attached to both sides and the magnet 140 is attached.

In addition, the tooth model fixing base support working plate 600 has a plurality of tooth model fixing base support 610 fixedly installed in the horizontal direction so that one side and the other side protrude outward by the length of the tooth model fixing base 110.

The magnet 140 is attached to both upper ends of the plurality of dental model fixing base support 610.

Then, the magnet receiving portion 113 of the tooth model fixed base 110 is inserted into one side of the plurality of tooth model fixed base support 610 is installed.

In this case, the support plate 120 may be installed above the tooth model fixing base support 610, and the iron powder, the plated and coated iron powder on the gypsum, the stainless steel powder, magnetite and magnet attached to the magnet Any one of the gemstone powder may be mixed, or any two or more thereof may be mixed or stirred and poured into the upper portion of the dental model fixing base 110.

That is, the dental model fixing base 110 is inserted and installed to one side of the dental model fixing base support 610 is a dental gypsum 300 by the magnetic force of the magnet attached to the upper portion of the dental model fixing base support 610 It is easy to be attached to and detached from the dental model 400 is cured.

The present invention is not limited to the above-described preferred embodiments and can be easily modified by anyone of ordinary skill in the art without departing from the gist of the invention claimed in the claims, Such changes are intended to fall within the scope of the claims.

As described above, according to the present invention, it is possible to provide a model mechanism for preparing a tooth prosthesis that shortens the time of the tooth model manufacturing process required for the prosthetic work and reduces waste of materials.

In addition, according to the present invention, there is no need for the grinding process, the pin fixing process and the base fixing process in the conventional dental prosthetic preparation method, by immediately skipping the cutting process, by reducing the time for preparing the dental prosthesis by about an hour and a half As a result, it is possible to provide a more effective and efficient model prosthesis preparation for dental prosthesis without the time to be treated from the patient's point of view and waste of material in the hospital.

Claims (9)

The dental gypsum filled in the negative pattern of the patient's teeth is attached to the surface of the dental gypsum before it is hardened to support the dental model in which the dental gypsum is cured, and the dental model is supported by the magnetic force of the magnet housed therein. Tooth prosthesis preparation model device, characterized in that detachable. The method of claim 1, Fixing the lower part of the dental model to be cured, and a magnet model is stored in the space formed therein, the tooth model fixed base for detaching the support plate implanted in the lower part of the dental model that the dental gypsum is cured by the magnetic force of the magnet ; It is formed by mixing any one of gypsum or plastic with iron powder, plated and coated iron powder, stainless steel powder adhering to the magnet, magnetite and gemstone powder of the magnet, or by mixing any two or more of them. A support plate portion formed to be detachable; A fixing band installed around the tooth model fixing base attached to the dental plaster when the dental plaster is cured on the tooth engraving pattern; And A magnet housed in a space formed inside the tooth model fixing base; Tooth prosthesis preparation model device comprising a. The method of claim 2, wherein the tooth model fixed base, A stepped portion formed to be flat at a predetermined interval to the outside so that the fixing band is installed around the periphery; A plurality of guide protrusions protruding outwardly to be fitted into a plurality of through holes formed in the support plate; A magnet accommodating part having a space formed therein to accommodate the plurality of magnets; It protrudes outward from the lower part of the dental model fixing base, and is formed to be inclined at an angle from the lower part to the upper part, and the dental plaster is infiltrated by the dental plaster poured into the lower articulator both sides in the lower part of the dental model fixing base and the inclination angle. A dental gypsum support member to fix the dental model fixing base to both articulator plates; And A magnet fixing protrusion formed on the inner end of the magnet accommodating part to fix and support the plurality of magnets overlapped with each other; Tooth prosthesis preparation model device comprising a. The method of claim 2, wherein the support plate portion, A plurality of through-holes are formed to fit into the plurality of guide protrusions formed on the tooth model fixing base, and are formed to be smaller than or equal to the area of the tooth model fixing base, and filled in the negative pattern of the patient's teeth. After the tooth model fixing base is attached to the surface is implanted in the lower part of the dental model formed by curing the dental gypsum, the tooth model fixing base and the tooth model for the prosthetic preparation, characterized in that detachable. The method according to claim 1 or 2 or 4, Fix the tooth model by mixing any one of iron powder, plated and coated iron powder, stainless steel powder attached to the magnet, magnetite and gemstone powder of the magnet instead of the support plate, or mixing any two or more. And a tooth model fixed base attached to the dental plaster which is poured on the base and is filled in the dental pattern of the patient's teeth and is cured together to form a tooth model. A tooth model fixed base support working plate, each supporting and detaching a plurality of tooth model fixed bases; A tooth model fixing base detachably attached to the tooth model fixing base support working plate, and having a support plate attached and detached to an upper portion thereof so as to be implanted in a lower part of the tooth model formed by curing dental gypsum in a negative pattern of a patient tooth; The support plate is detached from the upper part of the dental model fixing base, is attached to the surface of the dental plaster filled in the negative pattern of the patient's tooth, and is then implanted in the lower part of the dental model where the dental plaster is cured and mutually detached from the dental model fixing base. ; And A fixing band which is installed around the tooth model fixing base attached to the dental plaster and uniforms the surface of the tooth model contour formed when the dental plaster is cured in the tooth recess pattern; Tooth prosthesis preparation model device comprising a. The method of claim 7, wherein the tooth model fixed base support working plate, Magnets are attached to both sides, the tooth is inserted into the magnet receiving portion of the tooth model fixed base in the state that the magnet is attached, the tooth is fixed in the horizontal direction so that one side and the other side protrudes to the outside by the length of the tooth model fixed base Model fixed base support; And Magnets attached to upper sides of the plurality of tooth model fixing base supports; Tooth prosthesis preparation model device comprising a. The method of claim 8, wherein the tooth model fixed base, A stepped portion formed to be flat at a predetermined interval to the outside so that the fixing band is installed around the periphery; A plurality of guide protrusions protruding outwardly to be fitted into a plurality of through holes formed in the support plate; A magnet accommodating part formed therein to accommodate the magnet attached to an upper portion of the dental model fixing base support; A dental gypsum support member supporting the dental gypsum which is buried in the dental gypsum poured on one side of the articulator when it is fixed to the articulator; And A magnet fixing protrusion formed on the inner end of the magnet accommodating part to fix and support the plurality of magnets overlapped with each other; Tooth prosthesis preparation model device comprising a. The method according to claim 7 or 8, Gypsum iron powder, plated and coated iron powder, stainless steel powder attached to the magnet, magnetite and gemstone powder of the magnet are mixed or formed by mixing any two or more, and poured into the upper part of the dental model fixing base, A dental gypsum filled in a negative pattern of a patient's teeth is attached to the dental model fixing base and cured to form a dental model.

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