JP6333677B2 - Temporary cylinder, method for manufacturing temporary abutment, and connecting member used for connecting temporary cylinder - Google Patents

Description

The present invention is deficient in making the superstructure of the alternative to the implant of a tooth, the temporary cylinders for verifying the accuracy of the abutment model is prepared based on-taking by impression from the patient and Te The present invention relates to a manufacturing method of a tentative rear abutment and a connecting member used for connecting a temporary cylinder.

The implant is composed of an artificial tooth root called an implant body or fixture to be embedded in the gingiva, an abutment attached to the artificial tooth root, and a superstructure covering the abutment.
When the superstructure is manufactured, it is necessary to accurately grasp the position of the implant body embedded in the patient's gingiva, so that an abutment model for obtaining an index that has previously obtained an impression from the patient is manufactured. Or the apparatus which measures the position of an implant body by image processing, without producing an abutment model is developed (for example, refer patent document 1).

  In this implant structure measuring method and measuring apparatus described in Patent Document 1, a spacer is attached to each female screw of an implant structure embedded in a jaw, and a measured portion of each spacer is measured with two cameras. The shape of the part to be measured is edge-finded on the screen of the captured monitor device, the shape and position of the part to be measured are read, and the position, screw direction, positional relationship and occlusal plane of the female screw are calculated. It is to do.

  However, it is assumed that it is difficult to photograph the inside of the oral cavity of the patient from two different directions because the space in the oral cavity is narrow. In such a case, Patent Document 1 describes that the position and screw direction of the female screw and the occlusal plane are measured by taking the impression inside the mouth and photographing the impression. After all, it seems to be forced to make a model that impressed the patient.

The abutment model for obtaining an index is a gypsum model in which an implant analog is embedded instead of an implant body and indicates the position of the implant body.
Whether or not the implant analog embedded in the abutment model accurately indicates the position where the implant body is embedded is verified by using the temporary cylinder.

  In this verification, first, adjacent temporary cylinders are connected to each other by a connecting member in a state where the temporary cylinder is attached to the implant body embedded in the patient's gingiva. Next, the temporary cylinder is removed from the implant body while the temporary cylinders are connected to each other. Then, the connected temporary cylinder is attached to the implant analog of the abutment model. By doing so, if the interval between the implant analogs of the abutment model is small or large, the tension of the connecting wire is loosened or pulled, so the implantation position of the implant analog of the abutment model is It can be easily seen that it is different from the position of the patient's implant body.

JP-A-6-154252

  However, since the temporary cylinder is a simple cylindrical body with a hole for screwing in the implant body along the axis, the connection wire is fixed when the connection wire is fixed with a resin. hard.

Accordingly, the present invention aims to provide a connecting member used to facilitate coupling of the preparation and the temporary cylinders in the temporary cylinder and Te emissions polariton rear abutments capable secured by connecting members.

  The present invention, when verifying the positional accuracy of the implant analog embedded in the abutment model for producing the implant superstructure, in a state where it is connected to another adjacent temporary cylinder by the connecting member, A temporary cylinder attached to the implant analog, wherein a support portion for supporting the connecting member is formed on the cylinder body.

  According to the temporary cylinder of the present invention, since the support portion is formed on the cylinder body, the connecting member can be placed on the support portion to be supported.

  When the supporting portion is a protruding portion protruding from the peripheral surface of the cylinder body, the connecting member can be easily bridged to the protruding portion by placing the connecting member on the protruding portion protruding from the cylinder body. .

  When the protrusion protrudes horizontally from the cylinder body, the connecting member is disposed above the protrusion so that the upper and lower portions of the temporary cylinder can be moved up and down even if the orientation of the temporary cylinder is changed between the upper jaw and the lower jaw. Regardless of the direction of the direction, the connecting member can be disposed on the protrusion.

  If the protrusion is inclined downward from the distal end side toward the proximal end side, when the connecting member is placed, the connecting member is less likely to slide down from the protruding portion because it approaches the proximal end side by its own weight. .

  When the protrusion is formed so as to become gradually narrower from the distal end toward the proximal end, a protrusion having a downward slope from the distal end toward the proximal end can be formed.

  Even if the protrusion is formed in a Y shape, it can be a protrusion having a downward slope from the distal end toward the proximal end.

  If the protrusion has a recess in which the connecting member is disposed, the connecting member can be placed on and supported by the recess.

  When the recess is formed with the opening facing the base end side and the tip end side of the cylinder body, the connecting member is on the upper side even if the orientation of the temporary cylinder is switched between the upper jaw and the lower jaw. By disposing in the recessed portion, the connecting member can be disposed in the recessed portion regardless of the vertical direction of the temporary cylinder.

  When the through hole through which the connecting member is inserted is formed in the protrusion, the connecting member can be inserted through the through hole and supported.

  When the tip end surface of the projection is formed into an arcuate surface, the mucosal surface can be made difficult to be damaged even if the tip of the projection contacts the mucosal surface in the oral cavity of the patient.

  The support portion may be a recess formed in the cylinder body. By placing the connecting member in the recess formed in the cylinder body, the connecting member can be easily cross-linked to the recess.

  If the said hollow is formed in the front-end | tip part of the said cylinder main body, a connecting member can be mounted and supported in the hollow formed in the front-end | tip part.

  If the said hollow is formed in the surrounding surface of the said cylinder main body, a connection member can be mounted and supported in the hollow formed in the surrounding surface.

  When the support portion is a through hole formed in the cylinder body, the connecting member can be inserted into the through hole and supported.

  When the support part is formed on both the cheek side of the cylinder body and the opposite side of the cheek side, the connecting member is placed by selecting either the cheek side of the cylinder body or the opposite side of the cheek side can do.

Method for producing a temporary abutment of the present invention is characterized in that to produce the temporary cylinder of the present invention by cutting the front end portion including the supporting portion of the cylinder body.
According to the temporary abutment of the present invention, the remaining portion of the cylinder body can be made a temporary abutment by cutting off the tip side including the support portion of the cylinder body. Therefore, the temporary cylinder can be used as a temporary abutment without discarding the temporary cylinder.

The cylinder body of the temporary cylinder, when you formed from the proximal end in a tapered shape toward the tip, when put to prepare a superstructure to prepare a temporary abutment from the temporary cylinder, insertion of the superstructure Easy to insert even if the orientation is slightly off the axis of the temporary abutment.

The connecting member used for connecting the temporary cylinder of the present invention is formed in a wire shape in which at least one end is bent so as to be carried on the support part of the temporary cylinder of the present invention.
Since one end of the wire-like connecting member of the present invention is bent, the end of the connecting member can be easily hung on the support portion of the temporary cylinder and is not easily dropped.

  The connecting member used for connecting the temporary cylinder of the present invention is carried by the support portion of the temporary cylinder of the present invention, and is a cylinder that is the support portion of the temporary cylinder so as to connect the adjacent temporary cylinder. A deficient portion is formed to be hooked on the protruding portion protruding from the main body, and in a state where the deficient portion is hooked on the protruding portion of the temporary cylinder, the plate is carried on the supporting portion of the other temporary cylinder. .

  The plate-like connecting member of the present invention has a defect portion. It is hooked on a protrusion formed as a support part of the temporary cylinder of the present invention and is carried on the support part of another adjacent temporary cylinder. Thus, even if the connecting member of the present invention is plate-shaped, the temporary cylinder can be connected.

  In the present invention, since the connecting member can be supported by disposing the connecting member on the support portion, the connecting member can be easily fixed.

It is a perspective view which shows the temporary cylinder which concerns on embodiment of this invention. It is a figure of the temporary cylinder shown in FIG. 1, and is sectional drawing of the state which attached the screw. It is a figure for demonstrating the process of producing an abutment model, and is a figure which shows the state by which the impression coping was attached to the implant body embedded by the patient's gum. It is a figure for demonstrating the process of producing the abutment model following FIG. 3, and is a figure of the state which is transferring the impression by the impression tray on which the impression material was piled up. It is a figure for demonstrating the process of producing the abutment model following FIG. 4, and is a figure of the state which removed the impression coping from the implant body, and removed the impression material from the impression tray. It is a figure for demonstrating the process of producing the abutment model following FIG. 5, and is a figure of the state which attached the implant analog to the impression coping. It is a figure for demonstrating the process of producing the abutment model following FIG. 6, and is a figure of the abutment model of the state which embedded the implant analog by the plaster. It is a figure of the state which attached the temporary cylinder to the patient's implant body, arrange | positioned the wire for connection, and was fixed with the resin for fixing. It is a figure of the state which attached the connected temporary cylinder shown in FIG. 8 to the implant analog of an abutment model. (A)-(F) is a figure of the 1st-6th modification of the temporary cylinder shown in FIG. (A)-(E) is a figure of the 7th-11th modification of the temporary cylinder shown in FIG. It is a figure of the 12th modification of the temporary cylinder shown in FIG. It is a figure for demonstrating the temporary abutment produced from the temporary cylinder which concerns on embodiment of this invention, (A) is for demonstrating cutting of the projection part of a temporary cylinder, and cutting of the front-end | tip part side of a cylinder main body. (B) is a figure for demonstrating a taper-shaped cylinder main body. It is a figure for demonstrating the wire for a connection used for the connection of the temporary cylinder which concerns on embodiment of this invention, (A) is a figure of the state by which both ends were bent to the same side, (B) is both ends. (C) is a diagram in which one is bent at an acute angle and the other is linear, and (D) is bent until reaching the wire itself and the other is linear. FIG. It is a figure for demonstrating the board | plate material for a connection used for the connection of the temporary cylinder which concerns on embodiment of this invention, (A) is the figure which made the 2nd defect | deletion part the notch part along a longitudinal direction, (B) ) Is a diagram in which the second defect portion is a long hole, and (C) is a diagram in which the second defect portion is a notch portion that halves the plate width direction.

A temporary cylinder according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the temporary cylinder 10 includes a cylinder body 20 and a protrusion 30.
The cylinder body 20 is formed in a cylindrical shape in which a hollow is formed along the axis by forming an elongated insertion port 21 for inserting a screw driver (not shown). A screw hole 22 through which the screw 40 is inserted is formed in the base end portion of the cylinder body 20.
A pair of protrusions 30 are provided on the cylinder body 20. The protrusions 30 protrude from the peripheral surface 20a of the cylinder body 20 in the horizontal direction and so as to extend in opposite directions. The protrusion 30 is formed in a conical shape so that it gradually becomes thinner from the distal end toward the proximal end.

The temporary cylinder 10 configured in this manner is used for verifying the accuracy of the abutment model produced based on the impression obtained from the patient.
Here, the manufacturing method of an abutment model is demonstrated based on drawing.
As shown in FIG. 3, first, the dentist stands the impression coping 102 on the implant body 101 embedded in the patient's gingiva 110.

Next, as shown in FIG. 4, the dentist prepares an impression tray 111 with impression material 112 and covers the patient's gingiva. The impression material 112 is cured by transferring the state.
Next, as shown in FIG. 5, the dentist removes the impression coping 102 from the implant body 101, and takes out the impression material 112 with the impression coping 102 from the impression tray 111 removed from the patient.

Alternatively, the dentist removes the impression material 112 from the impression coping 102 together with the impression tray 111 from the state shown in FIG. Next, after removing the impression coping 102 from the implant body 101, the dentist restores the impression coping 102 to the impression material 112 and removes the impression tray 111 from the impression material 112. In this way, the impression material 112 with the impression coping 102 can be obtained.
Then, the dentist sends the impression material 112 with the impression coping 102 to the dental laboratory.

At the dental laboratory, the dental technician attaches the implant analog 103 to the impression coping 102 taken in the impression material 112 as shown in FIG.
Then, the impression material 112 to which the patient's impression is transferred is formed into a concave shape, and a convex shape is formed using a molding material such as gypsum in a form including the implant analog 103.
When the gypsum hardens, the dental technician removes the impression coping 102 from the implant analog 103 and removes the impression material 112 from the gypsum 113, as shown in FIG. The abutment model 100 produced in this way is used for producing an upper structure on the implant analog 103.

  As shown in FIG. 4, the abutment model 100 has the impression of the patient transferred to the impression material 112, and the shape of the impression material 112 is transferred by the plaster 113 as shown in FIGS. 6 and 7. It shrinks when 112 is cured or when the gypsum 113 is cured. This contraction appears as a difference between the positional relationship between the adjacent implant analogs 103 and the positional relationship between the implant bodies 101 implanted in the gingiva 110 of the patient. Since the abutment model 100 is used for producing an upper structure, high accuracy is required.

  Therefore, the dentist attaches the temporary cylinder 10 shown in FIG. 1 to the implant body 101 embedded in the patient's gingiva 110 as shown in FIG. When the temporary cylinder 10 is attached to the implant body 101, the screw 40 is inserted from the insertion port 21 of the cylinder body 20 and protruded from the base end (bottom), and then inserted into the implant body 101. The temporary cylinder 10 is fixed by inserting a screw driver from the mouth 21 and screwing the screw 40 into the implant body 101.

When the temporary cylinder 10 is attached to the implant body 101 in this way, the dentist arranges the connecting wire 114, which is an example of a connecting member, so as to straddle between the protrusions 30 of the temporary cylinders 10 respectively. To do.
At this time, if the connecting wire 114 is the lower jaw, the connecting wire 114 is arranged between the cheek-side protrusions 30 or between the tongue-side protrusions 30. Moreover, if it is an upper jaw, it arrange | positions between the projection parts 30 of cheek side, or the projection parts 30 of the palate side.
Since the protruding portion 30 protrudes from the cylinder body 20, the connecting wire 114 can be easily bridged to the protruding portion 30 by placing the protruding portion 30 as a support portion for the connecting wire 114.

  Since the protruding portion 30 is formed in a conical shape and gradually becomes thinner from the distal end portion 30a toward the proximal end portion 30b, the protruding portion 30 is inclined downward from the distal end portion 30a toward the proximal end portion 30b. Therefore, even if the connecting wire 114 is disposed at the distal end portion 30a having a large diameter, the connecting wire 114 slides down from the protruding portion 30 because it moves toward the proximal end portion 30b by its own weight toward the proximal end portion 30b having a small diameter. It is hard to do.

  When the connecting wire 114 is disposed on the temporary cylinder 10, the dentist applies the fixing resin 115, which is an adhesive, to the area including the connecting wire 114 on the protrusion 30, thereby temporarily connecting the connecting wire 114. Fix to the cylinder 10.

When the connection between the temporary cylinders 10 is completed, the dentist removes the temporary cylinder 10 from the implant body 101 by an operation opposite to that at the time of attachment.
Then, the dentist sends the temporary cylinder 10 connected by the connecting wire 114 to the dental laboratory.

  At the dental laboratory, the dental technician attaches the temporary cylinder 10 connected by the connecting wire 114 to the abutment model 100 as shown in FIG. If the distance between the implant analogs 103 of the abutment model 100 is wider than the distance between the implant bodies 101 of the patient, the temporary cylinder 10 positioned at one end is attached to the corresponding implant analog 103 and the temporary cylinder 10 is connected by the connecting wire 114. Since 10 intervals are determined, it cannot be attached to another implant analog 103.

If the interval between the implant analogs 103 of the abutment model 100 is narrower than the interval between the implant bodies 101 of the patient, the temporary cylinder 10 positioned at one end is attached to the corresponding implant analog 103, and the other temporary cylinders 10 are attached. Is attached to another implant analog 103, the connecting wire 114 is loosened.
Thereby, it is determined whether or not the abutment model 100 accurately reproduces the patient's state.

  Thus, since the projection body 30 is formed on the cylinder body 20 of the temporary cylinder 10 as a support portion for supporting the connection wire 114, the connection wire 114 can be easily disposed by using an adhesive. When a certain fixing resin 115 is attached, it can be caught and held by the protrusion 30. Therefore, the temporary cylinder 10 can be easily fixed by the connecting wire 114.

When the patient's implant body 101 is embedded in the lower jaw, when the temporary cylinder 10 is attached to the implant body 101, the proximal end 10a (side from which the screw 40 protrudes) of the temporary cylinder 10 is directed downward and the distal end 10b is upward. Facing. On the contrary, when the patient's implant body 101 is embedded in the lower jaw, the proximal end 10a of the temporary cylinder 10 faces upward and the distal end 10b faces downward.
However, since the protrusion 30 of the temporary cylinder 10 protrudes in the horizontal direction, even if the orientation of the temporary cylinder 10 is switched between the upper jaw and the lower jaw, the connecting wire 114 is disposed above the protrusion 30. Regardless of the vertical direction of the temporary cylinder 10, the connecting wire 114 can be disposed on the protrusion 30.
In particular, since the protruding portion 30 is formed in a conical shape, even if the orientation of the temporary cylinder 10 is switched between the upper jaw and the lower jaw, the connecting wire 114 disposed on the protruding portion 30 is moved toward the proximal end portion 30b by its own weight. Can be sent.

  In addition, since the protrusions 30 are formed on both the cheek side of the cylinder body 20 and the opposite side, the connecting wire 114 is supported when the protrusion 30 is attached to the implant body 101 and connected by the connecting wire 114. The connecting wire 114 can be arranged on the protruding portion 30 by selecting the protruding portion 30 that is easier.

  In addition, in this Embodiment, although the projection part 30 is formed in the cone shape, you may form with the triangular metal plate piece.

  Here, a modification of the temporary cylinder will be described with reference to the drawings. First, a modified example of the protrusion will be described.

(First modification)
As shown in FIG. 10A, the temporary cylinder 11 has a Y-shaped protrusion 31 as a support portion protruding in the horizontal direction from the peripheral surface 20a of the cylinder body 20.
Since the protruding portion 31 is formed in a Y shape, when the connecting wire is disposed on the protruding portion 31, the connecting wire approaches the proximal end portion by its own weight due to the inclination of the distal end portion of the protruding portion 31. The connecting wire is difficult to slide down from the protrusion 30.
Further, the inclination of the tip of the protrusion 31 is such that the protrusion 31 is formed in a Y shape, so that the base end 11a of the temporary cylinder 11 faces downward or upward, and the temporary cylinder 11 Even if the direction of is changed, it becomes a downward slope from the distal end portion 31a side to the proximal end portion 31b side. Therefore, by disposing the connecting wire on the upper side of the protruding portion 30, it is possible to make it difficult for the connecting wire to fall from the protruding portion 30.

(Second modification)
As shown in FIG. 10B, the temporary cylinder 12 has a protruding portion 32 as a support portion protruding from the peripheral surface 20a of the cylinder body 20 in the horizontal direction. The protrusion 32 may be a columnar shape or a quadrangular prism shape, but the protrusion 32 is formed with a recess 32a with an opening facing the distal end side and the proximal end side. Although the recess 32a shown in FIG. 10B is formed in a V shape, the groove may have a rectangular cross section or a semicylindrical groove bottom.

The temporary cylinder 12 configured in this manner has a recess 32a formed in the projection 32, so that the connecting wire is not easily slid by supporting the connecting wire in the recess 32a. The wire can be supported. Further, since the connecting wire fits into the recess 32a, the connecting wire and the inner surface of the recess 32a are firmly bonded by the fixing resin.
Furthermore, since both the concave portion 32a whose opening is directed to the base end 12a side and the concave portion 32a whose opening is directed to the distal end 12b side are formed, even if the orientation of the temporary cylinder 12 is switched between the upper jaw and the lower jaw. The connecting wire can be carried.

(Third Modification)
As shown in FIG. 10C, the temporary cylinder 13 has a protruding portion 33 as a support portion protruding in the horizontal direction from the peripheral surface 20a of the cylinder body 20. The protrusion 33 may be a columnar shape or a quadrangular prism, but the protrusion 33 is formed with a through-hole 33a through which the connecting wire is inserted in the wiring direction of the connecting wire. The through hole 33a shown in FIG. 10C is formed in a circular shape, but may be a polygonal shape or an irregular shape.

Since the temporary cylinder 13 configured in this manner has the through hole 33a formed in the protrusion 33, the connecting wire can be inserted into the through hole 33a to support the connecting wire. Further, since the connecting wire is inserted through the through hole 33a, the connecting wire and the inner surface of the through hole 33a are firmly bonded by the fixing resin.
Further, since the through hole 33a is formed in the wiring direction of the connecting wire, the connecting wire only needs to be inserted from the lateral direction into the temporary cylinder 13 attached to the implant body. Insertion into the through-hole 33a is easy.
Furthermore, since the connecting wire is inserted into the through hole 33a, the connecting wire can be carried even if the orientation of the temporary cylinder 13 is switched between the upper jaw and the lower jaw.

(Fourth modification)
As shown in FIG. 10D, in the temporary cylinder 13a, a protruding portion 30 as a support portion protrudes in the horizontal direction from the peripheral surface 20a of the cylinder body 20 in the same manner as the temporary cylinder 10 shown in FIG.
A through hole 33ax for inserting the connecting wire is formed in the projecting portion 30 in a direction intersecting the wiring direction of the connecting wire. Although the through hole 33ax shown in FIG. 10D is formed in a circular shape, it may be a polygonal shape or an irregular shape.

Since the temporary cylinder 13a configured as described above is provided with the protrusions 30, the same effects as those of the temporary cylinder 10 shown in FIG. 1 can be obtained.
In addition, since the through hole 33ax is formed in the protrusion 30, the connecting wire can be supported by inserting the connecting wire through the through hole 33ax.
Further, since the through hole 33ax is formed in a direction crossing the wiring direction of the connecting wire, when the connecting wire is inserted, the connecting wire is broken. If the wire is fixed to the protrusion 30, the yield strength against the tensile force can be improved. In particular, by forming the through hole 33ax along the direction perpendicular to the wiring direction of the connecting wire, the connecting wire can be firmly fixed to the protrusion 30.
Furthermore, since the connecting wire is inserted into the through hole 33ax, the connecting wire can be carried even if the orientation of the temporary cylinder 13a is changed.

(5th modification)
As shown in FIG. 10E, in the temporary cylinder 13b, a protruding portion 30 as a support portion protrudes in the horizontal direction from the peripheral surface 20a of the cylinder body 20 in the same manner as the temporary cylinder 10 shown in FIG.
The tip end surface 30c of the protrusion 30 is formed as an arc surface. In FIG. 10E, the tip 30c is formed in a hemispherical shape.

Since the temporary cylinder 13b configured as described above is formed with the protrusions 30, the same operational effects as those of the temporary cylinder 10 shown in FIG. 1 can be obtained.
In addition, since the tip surface 30c of the protrusion 30 is formed as a hemispherical arc surface, even if the tip of the protrusion contacts the mucosal surface in the oral cavity of the patient, it is difficult to damage the mucosal surface. it can.
In FIG. 10E, the protrusion 30 has a conical shape and the tip surface 30c has a hemispherical shape, but the protrusion may have a combination of a cylinder and a sphere.
Moreover, it is good also considering what the front end surface of the projection parts 30-33 of the figure (D) from FIG.

(Sixth Modification)
As shown in FIG. 10 (F), in the temporary cylinder 13c, a protruding portion 41 as a supporting portion protrudes from the peripheral surface 20a of the cylinder body 20. The protrusion 41 is formed in a spherical shape.
In the temporary cylinder 13c configured in this manner, since the protruding portion 41 is formed in a spherical shape, even if the tip of the protruding portion contacts the mucosal surface in the oral cavity of the patient, it is difficult to damage the mucosal surface. be able to.

  In the temporary cylinders 11 to 13 and 13a to 13c, the projecting portions 30 to 33 project from both the cheek side and the opposite side with the axis of the cylinder body 20 as the center, so that they are attached to the implant body 101 for connection. When connecting with a wire, it is possible to select the projections 30 to 33 that are more likely to carry the connection wire, and arrange the connection wires on the projections 30 to 33.

  The temporary cylinders 10 to 13 and 13a to 13c are provided with the projections 30 to 33 that function as support portions for supporting the connecting wires. However, the depressions may be formed in the cylinder body 20 instead of the projections. Good. By making the support part a depression instead of the projection part, the support part is not protruded from the cylinder body 20, and therefore, it is easy to place the connection part on the support part by the connecting wire even in a narrow oral cavity.

(Seventh Modification)
In the temporary cylinder 14 shown in FIG. 11A, a recess 34 as a support portion is formed at the tip 20 b of the cylinder body 20. The recess 34 is a step formed so that both shoulders are cut out with the central portion of the tip end portion 20b interposed therebetween.
The connecting wire can be fixed to the temporary cylinder 14 by arranging the connecting wire in the recess 34 and applying and fixing the fixing resin.

  The temporary cylinder 14 configured as described above has a recess 34 formed at the tip 20b of the cylinder body 20, and thus supports the connecting wire by supporting the connecting wire on the stepped surface 34a of the recess 34. be able to. Further, by placing the connecting wire in the recess 34 and applying the fixing resin, the connecting wire comes into contact with both the stepped surface 34a and the standing wall surface 34b of the recess 34. The two surfaces are firmly bonded to each other by a fixing resin.

(Eighth modification)
In the temporary cylinder 15 shown in FIG. 11B, a recess 35 as a support portion is formed at the tip 20 b of the cylinder body 20. The dent 35 is a groove cut out so as to dig deeper into the central portion of the tip 20b.
The connecting wire can be fixed to the temporary cylinder 15 by placing the connecting wire in the recess 35 and applying and fixing the fixing resin.

  The temporary cylinder 15 configured in this manner has a recess 35 formed at the tip 20b of the cylinder body 20, so that the connection wire can be placed on the recess 35 to support the connection wire. . Further, by placing the connecting wire in the recess 35 and applying the fixing resin, the connecting wire comes into contact with both the bottom surface 35a and the groove wall surface 35b of the recess 35. Each surface is firmly bonded by a fixing resin.

(Ninth Modification)
In the temporary cylinder 16 shown in FIG. 11C, a recess 36 is formed as a support portion on the cheek side of the peripheral surface 20a of the cylinder body 20 and on the opposite side. The recess 36 is a groove cut out from the peripheral surface 20a toward the axis.
In the case of the upper jaw, the groove wall 36b of this recess 36 is supported by the groove wall 36b on the distal end portion 20b side of the cylinder body 20, or in the case of the lower jaw, the groove wall of this recess 36. The connecting wire is fixed to the temporary cylinder 16 by supporting the connecting wire on the groove wall 36a on the base end portion 20c side of the cylinder body 20 and applying and fixing the fixing resin. Can do.

  In the temporary cylinder 16 configured in this manner, the recess 36 is formed on the peripheral surface 20a of the cylinder body 20, and therefore the connection wire can be supported by placing the connection wire in the recess 36. Further, by arranging the connecting wire in the recess 36 and applying the fixing resin, the connecting wire comes into contact with either surface of the groove walls 36a, 36b of the recess 36 and both surfaces of the groove bottom 36c. The connecting wires and the respective surfaces of the recesses 36 are firmly bonded by the fixing resin.

(10th modification)
In the temporary cylinder 17 shown in FIG. 11 (D), recesses 37 as support portions are formed on the cheek side of the peripheral surface 20a of the cylinder body 20 and on the opposite side. The depression 37 is a groove cut out from the peripheral surface 20a toward the axis. The recess 37 is formed so that the opening into which the connecting wire is inserted is narrower than the back side.
As described above, in the temporary cylinder 17, the opening of the recess 37 is formed narrower than the back side. Therefore, if the connecting wire is disposed in the recess 37, it is difficult to remove from the temporary cylinder 17.

(Eleventh modification)
In the temporary cylinder 18 shown in FIG. 11 (E), a recess 38 as a support portion is formed on the cheek side of the peripheral surface 20a of the cylinder body 20 or on the opposite side. The recess 38 is a groove that is deeply cut out from the peripheral surface 20 a beyond the axis of the cylinder body 20.
As described above, in the temporary cylinder 18, since the recess 38 is formed deeper than the axis line, if the connecting wire is arranged in the recess 38, it is difficult to get out of the recess 38, so that it is difficult to come off from the temporary cylinder 18. be able to.

(Twelfth modification)
In the temporary cylinders 14 to 18, the depressions 34 to 38 that function as support portions for carrying the connecting wires are formed in the cylinder body 20. However, instead of the depressions, through holes may be formed in the cylinder body 20. Good.
In the temporary cylinder 19 shown in FIG. 12, a through hole 39 through which a connecting wire is inserted into the cylinder body 20 is formed. Although the through hole 39 shown in FIG. 12 is formed in a rectangular shape, it may be circular, polygonal, or irregular.

Since the temporary cylinder 19 configured as described above has the through hole 39 formed in the cylinder body 20, the connecting wire can be inserted into the through hole 39 to support the connecting wire. Further, since the connecting wire is inserted through the through hole 39, the connecting wire and the inner surface of the through hole 39 are firmly bonded by the fixing resin.
Furthermore, since the connecting wire is inserted into the through hole 39, the connecting wire can be carried even if the orientation of the temporary cylinder 13 is changed.

  In the temporary cylinders 14, 16, 17, 19, the depressions 34, 36, 37 and the through holes 39 are formed on both the cheek side and the opposite side with the axis of the cylinder body 20 as the center. When attaching to 101 and connecting with a connecting wire, it is possible to select the depressions 34, 36, 37 or the through holes 39 that are easy to carry the connecting wire, and arrange the connecting wire.

Temporary cylinders 10 to 19 (see FIGS. 1, 10, 11, and 12) configured as described above can be used as temporary abutments.
When the temporary cylinders 10 to 19 are used as temporary abutments, the temporary cylinders 10 to 19 are processed as follows. In FIG. 13A, the temporary cylinder 10 is shown.

  In the case of the temporary cylinders 10 to 13, 13 a, 13 b, and 13 c in which the protrusions 30 to 33 and 41 are provided on the cylinder body 20, the protrusions 30 to 33 and 41 are cut out with a cutting jig or the like (see FIG. 13 (A) cutting line C1). Then, the cylinder body 20 is shortened by cutting away the tip 20b side of the cylinder body 20 according to the height of the upper structure (cut line C2 in FIG. 13A).

Further, in the case of the temporary cylinders 14 to 18 in which the depressions 34 to 38 are provided in the cylinder body 20, the tip 20b side including the depressions 34 to 38 is excised according to the height of the upper structure, so that the cylinder The main body 20 is shortened.
Furthermore, in the case of the temporary cylinder 19 in which the through hole 39 is provided in the cylinder body 20, the tip 20b side including the through hole 39 is cut out according to the height of the upper structure.
By doing so, the remaining part of the cylinder body 20 can be used as a temporary abutment, and the temporary cylinders 10 to 19 can be used without being discarded.

Further, in the case of the temporary cylinders 10 to 13, 13 a and 13 b provided with the protrusions 30 to 33, the cylinder body 20 protrudes from the upper structure after the protrusions 30 to 33 are cut off to produce the upper structure. May be excised.
Similarly, in the temporary cylinders 14 to 19, the cylinder body 20 protruding from the upper structure may be cut off after the upper structure is manufactured.
By doing so, since the insertion port (access hole) for inserting the screw driver is formed in the crown portion of the superstructure by the cut surface of the temporary cylinders 10 to 19, the crown portion from the dental neck portion of the superstructure Can be supported by a metal rod.

In addition, in the temporary cylinders 10-19, it can be made into a taper shape toward the front-end | tip part 20b from the base end part 20c. In the cylinder main body 20m shown in FIG. 13 (B), protrusions and depressions are omitted.
By forming the cylinder body 20m into a tapered shape, when the upper structure is manufactured and covered with the temporary buttment manufactured from the cylinder body 20m, the opening of the hole in the upper structure is made larger than the outer diameter of the tip of the temporary buttment. Since the inner diameter is large, it is easy to cover the upper structure.
In particular, when covering the bridge as the superstructure, the direction of covering the bridge is restricted. However, if the cylinder body 20m is tapered, it can be easily covered even by a bridge.
Thus, since the cylinder body 20m is formed in a tapered shape, the state in the oral cavity can be reproduced more precisely, and a more accurate superstructure can be provided to the patient.

Next, a connecting member for connecting the temporary cylinder according to the present embodiment will be described with reference to the drawings.
As the connecting member, a wire-like connecting wire can be used. The connecting wire is made by twisting metal thin wires, and has a rigidity that maintains the deformed shape when deformed.
Connection wires 116 and 117 shown in FIGS. 14A and 14B are both ends of the connection wires shown in FIGS. 8 and 9, and both ends outside the space between the temporary cylinders 10 and 13. (116a, 116b, 117a, 117b) are bent and the temporary cylinders 10, 13 are connected. In FIGS. 14A and 14B, the fixing resin is not shown.

  The connecting wire 116 shown in FIG. 14A is placed and connected to the protrusion 30 of the temporary cylinder 10 shown in FIG. Since the protruding portion 30 is formed in a conical shape, when the connecting wire 116 is placed on the protruding portion 30, the connecting wire 116 is close to the base end portion side of the protruding portion 30, so that it is difficult to slide down.

Since one end 116a and the other end 116b of the connecting wire 116 are bent on the same side, the connecting wire 116 can be stabilized only by placing the connecting wire 116 on the protrusion 30. In the state, it can be arranged on the protrusion 30.
In this state, the connecting wire 116 is difficult to move in the wiring direction. Therefore, the connecting wire 116 is difficult to move not only in the protruding direction of the protruding portion 30 (the direction from the base end portion toward the distal end portion) but also in the direction orthogonal to the protruding direction of the protruding portion 30. Therefore, it is possible to fix the connecting wire 116 with the fixing resin in a state where the connecting wire 116 is temporarily placed on the protruding portion 30.

In the example shown in FIG. 14 (A), the temporary cylinder 10 shown in FIG. 1 is connected by the connecting wire 116. However, the connecting wire 116 is changed from FIG. 10 (A) to FIG. It can also be used in the temporary cylinders 11 to 19 shown in FIG.
In particular, since both end portions 116a and 116b of the connecting wire 116 are bent at a right angle, the stability can be increased. Further, in the temporary cylinder 13a shown in FIG. 10D, the both end portions 116a and 116b can be inserted into the through-hole 33ax by the operation of placing the connecting wire 116 on the protruding portion 30.

The connecting wire 117 shown in FIG. 14 (B) is inserted and connected to the through hole 33a of the protrusion 33 of the temporary cylinder 13 shown in FIG. 10 (C).
Since one end 117a and the other end 117b are bent, the connecting wire 117 is difficult to move in the wiring direction of the connecting wire 117.
Further, since both end portions 117a and 117b of the connecting wire 117 are bent to different sides, when the connecting wire 117 is inserted into the through hole 33a, the connecting wire 117 can be alternately inserted into each through hole 33a. .

  For example, one end portion 117a bent toward the distal end portion 20b is inserted into the through hole 33a of one temporary cylinder 13, and the straight portion 117c is rotated around the bent portion of the one end portion 117a while the through hole After the straight portion 117c is advanced to the position 33a, the other end portion 117b bent to the base end portion 20c is pulled and inserted into the through hole 33a of the projection portion 33 of the other temporary cylinder 13.

By doing so, the other end portion 117b bent to the base end portion 20c is bent to a side different from the one end portion 117a bent to the tip end portion 20b side, and therefore both end portions 117a of the connecting wire 117, 117b can be easily inserted into the through hole 33a.
In this way, the connecting wire 117 can be easily arranged even in the narrow oral cavity of the patient.

  In the example shown in FIG. 14B, the temporary cylinder 13 shown in FIG. 10C is connected by the connecting wire 117, but the same applies to the temporary cylinder 19 shown in FIG.

  14A and 14B have both ends (116a, 116b, 117a, 117b) bent, but only one of the ends may be used. . Further, the end portions (116a, 116b, 117a, 117b) are bent at an obtuse angle, but when one end portion is bent, an acute angle may be used.

  As shown in FIG. 14C, one end 118a of the connecting wire 118 is bent at an acute angle. In this way, when the end portion 118 a of the connecting wire 118 is hooked on the protruding portion 30 of one temporary cylinder 10, the end portion 118 a of the connecting wire 118 is connected to the protruding portion 30 of the other temporary cylinder 10. The other end portion 118b can be supported by the protrusion 30 by rotating to the center and placing the other end portion 118b.

  At this time, the other end portion 118b may not be bent, but if the other end portion 118b is bent at an obtuse angle toward the base end portion 20c of the cylinder body 20, the other end portion 118b is formed as a protruding portion. When placed on 30, the other end 118 b can be placed on the protrusion 30 in a more stable state.

  When the end portion 118a of the connecting wire 118 is bent at an acute angle, the end portion 118a is bent to reach the connecting wire 118 itself as shown in FIG. It is formed in a shape.

  As described above, since the end portion 118a of the connecting wire 118 is formed in a ring shape, first, the end portion 118a is connected to the protrusion portion 30 of one temporary cylinder 10 from the tip end side of the protrusion portion 30. Next, the connecting wire 118 is rotated around the end portion 118 a, and the end portion 118 b is placed on the protruding portion 30 of the other temporary cylinder 10. By doing so, the other end portion 118 b can be supported by the protrusion 30.

Next, the case where the connecting member is plate-shaped will be described with reference to the drawings.
As the connecting member, a plate-like connecting plate material can be used. This connecting plate is made of metal. In FIG. 15, the fixing resin is not shown. In FIG. 15A to FIG. 15C, the right temporary cylinder 10 is referred to as one temporary cylinder 10, and the other temporary cylinder 10 adjacent to the temporary cylinder 10 is referred to as the other temporary cylinder 10.

A connecting plate 119 shown in FIG. 15A connects one temporary cylinder 10 and the other temporary cylinder 10.
The connecting plate member 119 is formed with a first defect portion 119a and a second defect portion 119b. The 1st defect | deletion part 119a (deletion part) is a notch part formed along the transversal direction at the one end part side. The 2nd defect | deletion part 119b is a notch part formed along the longitudinal direction of the board | plate material 119 for a connection from the other end part to a center part.

When one temporary cylinder 10 and the other temporary cylinder 10 are connected by the connecting plate material 119, first, the second missing portion 119b is fitted into the protruding portion 30 protruding from the cylinder body 20 of the one temporary cylinder 10. Next, while shifting the position of the second defect portion 119b through which the protrusion 30 of the other temporary cylinder 10 passes along the longitudinal direction, the connecting plate member 119 is rotated, so that the first defect portion 119a is supported by the support portion. The protrusion 30 is inserted.
As a result, the first missing portion 119a is hooked and supported by the projection 30 of one temporary cylinder 10, and the second missing portion 119b is placed and supported on the projection 30 of the other temporary cylinder 10.

  And the range including the connection part of the projection part 30 and the connection board | plate material 119 is fixed with the resin for fixing. In this way, the temporary cylinders 10 and 10 can be connected by the connecting plate material 119. Since the temporary cylinders 10 and 10 can be firmly connected by the connecting plate material 119, the positional relationship between the temporary cylinders 10 and 10 can be reliably fixed.

A connection plate 120 shown in FIG. 15B connects one temporary cylinder 10 and the other temporary cylinder 10.
The connecting plate member 120 is formed with a first missing portion 120a and a second missing portion 120b. The 1st defect | deletion part 120a (deletion part) is a notch part formed along the transversal direction at the one end part side. The 2nd defect | deletion part 120b is a long hole formed along the longitudinal direction of the board | plate material 119 for a connection from the other end part to the center part.

When one temporary cylinder 10 and the other temporary cylinder 10 are connected by the connecting plate member 120, the same operation as that of the connecting plate member 119 shown in FIG. 15A can be performed.
As a result, the first missing part 120 is hooked and supported by the protrusion 30 of one temporary cylinder 10, and the second missing part 120 b is placed and supported on the protrusion 30 of the other temporary cylinder 10.
Even with such a connecting plate member 120, the temporary cylinders 10, 10 can be firmly connected, so that the positional relationship between the temporary cylinders 10, 10 can be reliably fixed.

In the present embodiment, as a procedure for connecting the temporary cylinders 10 and 10 with the connecting plate members 119 and 120, the first missing portions 119a and 120a are attached first, and then the second missing portions 119b and 120b are attached. However, the opposite procedure may be used.
In that case, the 1st defect | deletion parts 119a and 120a are attached so that it may insert from the front-end | tip part of the projection part 30 toward a base end part.

  Further, in the present embodiment, the first defect portions 119a and 120a are formed along the longitudinal direction of the connecting plate members 119 and 120, the second defect portions 119b and 120b are formed along the short direction, and the opening portion have. However, the first defect portion and the second defect portion can also be circular through holes provided at both ends corresponding to the positions of the protrusions.

A connection plate 121 shown in FIG. 15C connects one temporary cylinder 10 and the other temporary cylinder 10.
The connecting plate member 121 is formed with a first missing portion 121a and a second missing portion 121b. The 1st defect | deletion part 121a (deletion part) is a notch part formed along the transversal direction at the one end part side. The second missing part 121b is a notch part from which the half of the opening side of the first missing part 121a is removed in the plate width direction of the connecting plate 121 perpendicular to the connecting direction from the other end part to the center part. . The notch position in the width direction of the second defect portion 121b is the same position as the notch position of the first defect portion 121a.

When one temporary cylinder 10 and the other temporary cylinder 10 are connected by the connecting plate member 121, first, the first missing portion 121 a is inserted into the protruding portion 30 protruding from the cylinder body 20 of the one temporary cylinder 10. Next, the connecting plate 121 is rotated around the first missing portion 121 a inserted through the protrusion 30 and placed on the protrusion 30 that is the support portion of the other temporary cylinder 10.
As a result, the first missing portion 121a is hooked and supported by the protruding portion 30 of one temporary cylinder 10, and the second missing portion 121b is placed and supported on the protruding portion 30 of the other temporary cylinder 10.

  And the range including the connection part of the projection part 30 and the connection board | plate material 121 is fixed with the resin for fixation. In this way, the temporary cylinders 10 and 10 can be connected by the connecting plate 121.

  In FIG. 15C, since the second chipped portion 121b is formed in the connecting plate 121, when the connecting plate 121 is placed on the protrusion 30 of the other temporary cylinder 10, the connecting plate 121 is removed. Can be horizontal. However, if the connecting plate 121 may be in an inclined state, the second missing portion 121b can be omitted.

  When three or more temporary cylinders are connected by the connecting member, the first temporary cylinder and the second temporary cylinder are connected, and then the second temporary cylinder and the third temporary cylinder are connected. As described above, it is possible to connect three or more temporary cylinders by performing the above operation while shifting them one by one and connecting them with a connecting member.

  The present invention is suitable for implanting a patient who has lost teeth.

10-13, 13a-13c, 14-19 Temporary cylinder 10a, 11a, 12a Base end 10b, 12b Tip 20, 20m Cylinder body 20a Peripheral surface 20b Tip 20c Base end 21 Insertion port 22 Screw hole 30, 31, 32 , 33, 41 Projection part 30a, 31a Tip part 30b, 31b Base end part 30c Tip end face 32a Recess 33a, 33ax Through hole 34, 35, 36, 37, 38 Recess 34a Stepped face 34b Standing wall 35a Bottom 35b Groove wall 36a, 36b Groove wall 36c Groove bottom 39 Through hole 100 Abutment model 101 Implant body 102 Impression coping 103 Implant analog 110 Gingiva 112 Impression material 111 Impression tray 113 Gypsum 114, 116, 117, 118 Connecting wires 116a, 116b, 117 , 117b, 118a, 118b end 115 fixing resin 119, 120, 121 connecting plate 119a, 120a, 121a first defect 119b, 120b, 121b second defect

Claims (20)

When verifying the position accuracy of the implant analog embedded in the abutment model for producing the superstructure of the implant, it is attached to the implant analog while being connected to another adjacent temporary cylinder by a connecting member. A temporary cylinder,
The temporary cylinder in which the support part which carries the said member for connection was formed in the cylinder main body.   The temporary cylinder according to claim 1, wherein the support portion is a protrusion protruding from a peripheral surface of the cylinder body.   The temporary cylinder according to claim 2, wherein the protrusion protrudes horizontally from the cylinder body.   The temporary cylinder according to claim 3, wherein the protrusion is inclined downward from the distal end side toward the proximal end side.   The temporary cylinder according to claim 4, wherein the protrusion is formed so as to be gradually narrowed from the distal end toward the proximal end.   The temporary cylinder according to claim 2, wherein the protrusion is formed in a Y shape.   The temporary cylinder according to claim 2, wherein the protrusion is formed with a recess in which the connecting member is disposed.   The temporary cylinder according to claim 7, wherein the recess is formed with an opening directed toward a base end side and a tip end side of the cylinder body.   The temporary cylinder according to claim 2, wherein a through-hole through which the connecting member is inserted is formed in the protrusion.   The temporary cylinder according to claim 2, wherein a tip end surface of the protrusion is formed in an arc surface.   The temporary cylinder according to claim 2, wherein the protrusion is formed in a spherical shape.   The temporary cylinder according to claim 1, wherein the support portion is a recess formed in the cylinder body.   The temporary cylinder according to claim 12, wherein the recess is formed at a tip portion of the cylinder body.   The temporary cylinder according to claim 12, wherein the recess is formed on a peripheral surface of the cylinder body.   The temporary cylinder according to claim 1, wherein the support portion is a through hole formed in the cylinder body.   The temporary cylinder according to any one of claims 1 to 15, wherein the support portion is formed on both the cheek side and the opposite side of the cheek side of the cylinder body. Method for producing a temporary abutment for making by cutting the front end portion including the supporting portion of the cylinder body from the temporary cylinder according to any one of claims of the claims 1 to 16. Said cylinder body, a temporary abutment method according to claim 17 for forming from the proximal end in a tapered shape toward the tip portion of the temporary cylinder.   A connecting member used for connecting a wire-like temporary cylinder in which at least one end is bent so as to be carried on the support portion of the temporary cylinder according to any one of claims 1 to 16.   It is carried on the support part of the temporary cylinder according to any one of claims 2 to 11 and protrudes from a cylinder body which is the support part of the temporary cylinder so as to connect another temporary cylinder adjacent thereto. A connection used for connection of a plate-like temporary cylinder that is formed on the protrusion of the temporary cylinder in a state in which a defect is formed to be hooked on the protrusion, and the defect is hooked on the protrusion of the temporary cylinder. Materials.

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