JP2022105976A - Dental technician instrument set, manufacturing method of artificial tooth and program - Google Patents

Abstract

To provide a dental technician instrument set allowing even a non-expert to easily fabricate artificial teeth at a low cost in a short time.SOLUTION: A dental technician instrument set 1 to be used for fabricating artificial teeth, comprises an artificial tooth set group 2 including a plurality of artificial tooth sets 20 with different dimensions, where each artificial tooth set includes a plurality of artificial teeth. Here, a patient's artificial tooth set fitted to a patient is selected from the artificial tooth set group, and at least one artificial tooth included in the patient's artificial tooth set is buried in a biteplate of the patient by using a patient's tooth mold tray 30 fitted to the patient's artificial tooth set, or superposed on a material for a denture base by using the patient's tooth mold tray.SELECTED DRAWING: Figure 1

Description

The present invention relates to a dental technician instrument set, a method for manufacturing a denture, and a program.

In the production of dentures, for example, a jaw model and an occlusal bed are prepared, an occlusal acquisition is performed, the jaw model and the occlusal bed are attached to an articulator, artificial teeth are arranged, and gingiva is formed. To make a wax denture. After that, the jaw model and the wax denture are buried in plaster in a flask, and the denture is completed through dewaxing, resin injection, and polymerization. Such a manufacturing process is described in, for example, Patent Document 1. In the process after producing the wax denture, there are various methods such as an embedding method and a silicon core method as an elephant method, and an injection method and a pouring method as a polymerization method. Further, the material for the denture base is not limited to resin, but various materials such as thermoplastic resin are used.

Japanese Unexamined Patent Publication No. 2010-022726

The production of conventional dentures requires the skill of dentists and dental technicians, especially for artificial tooth arrangement and gingival formation. In addition, even a skilled person may not be able to create the ideal denture (complex factors such as aesthetics when worn, mastication, occlusion, and buccal-lingual lateral position need to fit the patient). many. In addition, skillful skills are required, and labor and time are required, resulting in high costs.

An object of the present invention is to make it possible to produce a denture easily, in a short time, and at low cost even by a non-expert.

One aspect of the present invention that solves the above problems is a dental technician instrument set used for manufacturing a denture, comprising an artificial tooth set group including a plurality of artificial tooth sets having different specifications, and each of the artificial teeth. The set contains multiple dentures. Here, a patient artificial tooth set suitable for the patient is selected from the artificial tooth set group, and at least one artificial tooth included in the patient artificial tooth set is a patient tooth suitable for the patient artificial tooth set. It is embedded in the patient's occlusal bed using a mold tray, or polymerized into a denture base material using the patient tooth mold tray.

The dental engineering instrument set comprises a tooth mold tray group including a plurality of tooth mold trays having different specifications, and each tooth mold tray is compatible with any of the artificial tooth sets and a plurality of artificial tooth sets of the artificial tooth set. The teeth can be arranged and the patient tooth tray may be selected from the tooth tray group to fit the patient artificial tooth set.

The dental technique instrument set includes a tooth type tray shape data group including shape data of a plurality of tooth type trays having different specifications, and each tooth type tray is compatible with any of the artificial tooth sets and the artificial tooth. A plurality of artificial teeth in a set can be arranged, and the patient tooth type tray is based on the shape data of the tooth type tray selected from the tooth type tray shape data group to fit the patient artificial tooth set. It may be made.

The patient tooth mold tray is used for embedding in the occlusal bed of the patient with the at least one artificial tooth arranged, or the denture bed with the at least one artificial tooth arranged. It may be polymerized with the material.

The at least one artificial tooth includes a tooth portion and a gingival portion that are detachable from each other, and the gingival portion may be polymerized to the denture base material without or after removing the gingival portion from the artificial tooth.

The tooth tray may be formed with a receiving groove for accommodating at least one artificial tooth with the surface on the root side exposed.

The at least one tooth-shaped tray includes a pedestal portion and one or more holding portions that can be attached to and detached from the pedestal portion, and the holding portion exposes at least one artificial tooth on the root side surface. A receiving groove may be formed for accommodating the teeth in a state of being closed.

Another aspect of the present invention for solving the above problems is a method for manufacturing a denture, which is a group of artificial tooth sets including a plurality of artificial tooth sets having different specifications, and each artificial tooth set has a plurality of artificial tooth sets. The first step of selecting a patient artificial tooth set suitable for a patient from a group of artificial tooth sets including artificial teeth, and the second step of preparing a patient tooth mold tray suitable for the patient artificial tooth set. At least one artificial tooth included in the patient artificial tooth set is embedded in the patient's occlusal bed using the patient tooth mold tray, or used as a material for a denture base using the patient tooth mold tray. Includes a third step of producing a denture for the patient by polymerization.

The second step is a group of tooth mold trays including a plurality of tooth mold trays having different specifications, and each tooth mold tray is compatible with any of the artificial tooth sets and a plurality of artificial tooth sets of the artificial tooth set. The patient tooth type tray may be selected from the tooth type tray group capable of arranging teeth so as to be compatible with the patient artificial tooth set.

The second step is a tooth type tray shape data group including shape data of a plurality of tooth type trays having different specifications, and each tooth type tray is compatible with any of the artificial tooth sets and the artificial tooth. From the tooth type tray shape data group capable of arranging a plurality of artificial teeth of the set, the shape data of the tooth type tray is selected so as to match the artificial tooth set for the patient, and the above-mentioned is performed based on the selected shape data. A patient tooth tray may be made.

In the third step, the at least one artificial tooth is arranged in the patient tooth mold tray, and the patient tooth mold tray is relocated while facing the occlusal bed of the patient, or the patient tooth. The patient's wax denture may be made by connecting on a mold tray and then taking it out and transferring it to the patient's occlusal bed.

In the third step, a gingival bed located between the patient's tooth mold tray and the patient's jaw model and defining the positional relationship between them is prepared, and between the jaw model and the patient's tooth mold tray. After imagining the arranged gingival bed, the gingival bed may be removed and replaced with the material for the denture base.

In the third step, an outer shell forming an outer shell including a portion corresponding to a denture base located between the patient's tooth mold tray and the patient's jaw model is prepared, and the patient's jaw model and the patient's jaw model are prepared. The outer shell may be attached to the patient tooth mold tray, and the denture base material may be injected into the molding space.

Another aspect of the present invention that solves the above problems is a program used for manufacturing a denture, which is a tooth mold tray shape data group including shape data of a plurality of tooth mold trays having different specifications. Each tooth type tray can arrange a plurality of artificial teeth of the corresponding artificial tooth set from the tooth type tray shape data group of the patient tooth type tray suitable for the patient's artificial tooth set. Have the computer execute the shape data acquisition step of acquiring the shape data. Here, in the manufacture of the denture for the patient, at least one artificial tooth included in the patient artificial tooth set is the actual product of the patient tooth mold tray corresponding to the shape data of the patient tooth mold tray. Is embedded in the occlusal bed of the patient using the above, or is superposed on the material for the denture bed using the actual patient tooth mold tray.

In the program, the acquired shape data of the patient's tooth mold tray and the shape data of the patient's jaw model are arranged in a virtual three-dimensional space, and between the patient's tooth mold tray and the patient's jaw model. A computer may be made to perform a shape data editing step, which creates shape data of the gingival bed that is located and defines these positional relationships. Here, in the manufacture of the denture for the patient, the actual gingival bed is produced based on the shape data of the gingival bed, and the actual gingival model is between the actual gingival model of the patient and the actual tooth mold tray for the patient. After imitating the actual gingival bed that has been placed, the actual gingival bed is removed and replaced with the material for the denture base.

In the program, the acquired shape data of the patient tooth mold tray and the shape data of the patient jaw model are arranged in a virtual three-dimensional space, and between the patient tooth mold tray and the patient jaw model. A computer may be made to perform a shape data editing step, which creates shape data of the outer shell that internally forms a molding space including a portion corresponding to a located artificial tooth base. Here, in the manufacture of the denture for the patient, the actual outer shell is produced based on the shape data of the outer shell, and the outer shell is added to the actual jaw model of the patient and the actual tooth mold tray for the patient. The actual product is attached, and the material for the denture base is injected into the molding space.

According to the present invention, a denture can be produced easily, in a short time, and at low cost even by a non-expert.

Issues, configurations and effects other than those described above will be clarified by the following description of the embodiments.

It is a figure explaining an example of the dental technician instrument set which concerns on one Embodiment of this invention. It is a figure which shows an example of the artificial tooth which concerns on one Embodiment of this invention. It is a figure which shows an example of the tooth type tray which concerns on one Embodiment of this invention. It is a figure which shows an example of the tooth type tray which concerns on one Embodiment of this invention. It is a figure which shows another example of the tooth type tray which concerns on one Embodiment of this invention. It is a figure which shows another example of the tooth type tray which concerns on one Embodiment of this invention. It is a figure which shows an example of the attachment / detachment mechanism of the tooth tray which concerns on one Embodiment of this invention. It is a figure which shows another example of the attachment / detachment mechanism of the tooth tray which concerns on one Embodiment of this invention. It is a figure which shows another example of the attachment / detachment mechanism of the tooth tray which concerns on one Embodiment of this invention. It is a figure explaining an example (method 1) of the manufacturing method of the denture which concerns on one Embodiment of this invention. It is an end view explaining the relationship between the jaw model, the wax denture, and the tooth type tray in Method 1. It is a figure explaining an example (method 2) of the manufacturing method of the denture which concerns on one Embodiment of this invention. It is a figure explaining another example (method 3) of the manufacturing method of the denture which concerns on one Embodiment of this invention. It is an end view explaining the relationship between the jaw model, the gingival bed, and the tooth type tray in the method 3. It is a figure explaining another example (method 4) of the manufacturing method of the denture which concerns on one Embodiment of this invention. It is an end view explaining the relationship between the jaw model, the outer shell, the artificial tooth set, and the tooth type tray in the method 4. It is a figure which shows the structural example of the shape data generation apparatus which concerns on one Embodiment of this invention.

Hereinafter, an embodiment according to the present invention will be described with reference to the drawings. In addition, in all the drawings for explaining one embodiment, in principle, the same members are designated by the same reference numerals, and the repeated description thereof will be omitted. Further, in the following embodiments, it is needless to say that the components (including element steps and the like) are not necessarily essential except when explicitly stated and when it is clearly considered to be essential in principle. stomach. In addition, it goes without saying that other elements are not excluded unless it is clearly stated that they are only the constituent elements. Similarly, in the following embodiments, when the shape, positional relationship, etc. of the constituent elements, etc. are referred to, the shape, etc. It shall include those that are close to or similar to.

The present invention can be applied to both a complete denture and a local denture, but for ease of understanding, an example of application to a complete denture for the upper jaw will be mainly described below. Further, in the present embodiment, a person who is a target for producing a denture is referred to as a patient. It is assumed that one or more people, such as dentists, dental technicians, and assistants, will make dentures, but they are collectively called workers.

FIG. 1 is a diagram illustrating an example of a dental technician instrument set according to an embodiment of the present invention. The dental technician instrument set 1 according to the present embodiment includes an artificial tooth set group 2 and a tooth type tray group 3. The dental technician instrument set 1 is typically manufactured and sold to workers by an entity such as a medical device manufacturer.

The artificial tooth set group 2 includes a plurality of artificial tooth sets 20. Each artificial tooth set 20 is composed of a plurality of artificial teeth 200 which are arranged to form a maxillary or mandibular dental arch. Each artificial tooth 200 is integrally embedded and used in the denture base of the finally produced denture. The occlusion of the maxillary artificial tooth set 20 and the mandibular artificial tooth set 20 included in the associated upper and lower set is designed to properly occlude in a predetermined positional relationship.

FIG. 2 is a diagram schematically showing an example of an artificial tooth according to an embodiment of the present invention, in which the front surface (a), the side surface (b), and the side surface (c) of the upper 1 (central incisor) are shown. Shows. The side surface (c) shows a cross section of the gingival portion. The artificial tooth 200 according to the present embodiment is composed of a tooth portion 201 and a gingival portion 202. In the example of FIG. 2, the gingival portion 202 is provided on the outer periphery of the intermediate portion in the length direction of the tooth portion 201, and the tip end side (crown side) and the root side of the tooth portion 201 are exposed. The tooth portion 201 and the gingival portion 202 are configured to be detachably detachable from each other. The inner surface of the gingival portion 202 may be formed so as to be in close contact with the surface of the tooth portion 201 as a whole, but a gap may be formed on the tooth root side as shown in FIG. 2 (c). This gap is useful for improving the adhesion, for example, by allowing the wax of the wax shaving to enter. An artificial dental arch is formed by arranging a plurality of such artificial teeth 200 from the front teeth to the back teeth.

In the artificial tooth set, some artificial teeth 200 (for example, back teeth) or all artificial teeth 200 may be composed of only the tooth portion 201 without having the gingival portion 202. For ease of understanding, the case where the artificial tooth 200 has the gingival portion 202 will be mainly described below.

Further, a plurality of artificial teeth 200 or all artificial teeth 200 in the artificial tooth set may be connected to each other and integrally configured. In order to facilitate understanding, the case where the artificial teeth 200 are separated one by one will be mainly described below.

As shown in FIG. 2, the artificial tooth 200 is not limited to the normal type that reproduces the appearance of the periphery (front surface, side surface, back surface) of the tooth. Includes a partial type that reproduces a part of the appearance of the tooth, for example, a shell type in which a part of the root side or the back side of the tooth (the palatal side in the case of the upper jaw or the lingual side in the case of the lower jaw) is removed. Can be done. The same applies to the gingival portion 202. The partial type can avoid or reduce the interference of the occlusal bed with the foundation floor and the jaw model. If the artificial teeth 200 interfere with the foundation floor when they are arranged, the interference points of the artificial teeth 200 or the foundation floor may be removed, and if they interfere with the jaw model, the interference points of the artificial teeth 200 may be removed.

Returning to FIG. 1, the plurality of artificial tooth sets 20 are not tailor-made for the patient, but are provided as a plurality of standard products having different specifications. Specifications include one or more of the elements exemplified below.
-Regarding the tooth portion 201 of the artificial tooth 200, size, shape, color-Regarding the gingival portion 202 of the artificial tooth 200, the size, shape, color-Regarding the artificial tooth set 20, the shape, width, depth, and inclination of the dental arch. , Top and bottom set occlusion

The tooth tray group 3 includes a plurality of tooth trays 30 that fit each artificial tooth set 20 having different specifications. The tooth tray 30 can hold the positions and orientations of the artificial teeth 200 of the matching maxillary or mandibular artificial tooth set 20 in a state of being arranged according to the specifications. That is, the plurality of tooth trays 30 are not tailor-made for the patient like the plurality of artificial tooth sets 20, but are provided as a plurality of standard products having different specifications.

3 and 4 are diagrams schematically showing an example of a tooth tray according to an embodiment of the present invention. 3 and 4 show a tooth tray for the maxillary artificial tooth set 20. FIG. 3 shows a plane (a) when the tooth tray is viewed from the maxillary side and a vertical cross section (b) at the substantially center of the tooth tray. FIG. 4 shows an example in which the artificial tooth set 20 is arranged on the tooth tray 30, and shows before (a) and after (b) arrangement. FIG. 4 shows a vertical cross section of the tooth tray 30 and shows a side surface of the artificial tooth set 20. In FIG. 4, some artificial teeth 200 are not shown.

As shown in FIG. 3, the tooth tray 30 includes a semicircular main body portion 31 in a plan view, and the convex portions of the arc are on the front tooth side and both ends of the arc are on the back tooth side. In the main body portion 31, a receiving groove 32 for arranging and holding the artificial dentition is formed in the central portion along the circumference. The receiving groove 32 has a shape (that is, a tooth shape) suitable for each artificial tooth 200 so that the artificial tooth 200 can be accommodated in a state where the surface on the root side is exposed and the position and orientation thereof can be maintained. It is formed. The shape of the main body 31 is not limited to a semicircular shape as long as the bow-shaped receiving groove 32 can be formed. Further, the main body portion 31 is divided into, for example, an upper left molar portion (upper left 4 to 7), an upper anterior tooth portion (upper left 3 to upper right 3), and an upper right molar portion (upper right 4 to 7). , May be composed of a plurality of removable parts.

As shown in FIG. 4, the receiving groove 32 is formed to a depth at which at least a part of each artificial tooth 200 in the length direction can be embedded. In the example of FIG. 4, the receiving groove 32 is formed to a depth at which a part of each artificial tooth 200 on the root side protrudes.

The end of the artificial tooth 200 on the root side is not limited to the position outside the opening end surface of the receiving groove 32, and the end of the artificial tooth 200 on the root side is the receiving groove 32. It may be configured to be located at or within the same position as the open end face. It may be different depending on the position of the artificial tooth 200 in the dentition.

If the receiving groove 32 is formed in the shape of a normal type artificial tooth, it can accommodate a partial type artificial tooth such as a shell type. However, since a part of the outer shape of the tooth is omitted in the partial type, there is a possibility that the position and orientation of the artificial tooth cannot be maintained due to inward tilting in the receiving groove 32. Therefore, the surface of the receiving groove 32 that comes into contact with the artificial tooth may be provided with an engaging hole that engages with the engaging protrusion that is temporarily fixed to the contact surface of the tooth portion 201. If the engaging protrusion is temporarily fixed to the artificial tooth and the artificial tooth is accommodated in the receiving groove 32 while inserting and engaging the engaging protrusion in the engaging hole of the receiving groove 32, the position and orientation of the artificial tooth can be maintained. Can be done. The engaging protrusion may be, for example, made of resin, temporarily adhered to the outer surface of the artificial tooth, and removed after the denture is made.

The tooth tray 30 is defined with mounting positions of the wax denture E (method 1, method 2), the gingival bed 50 (method 3), the spacer (method 4), and the outer shell 60 (method 4), which will be described later. An engaging portion (for example, a concave groove) may be provided for the purpose. For example, when the wax denture E is manufactured, if an engaging portion (for example, a convex protrusion) that engages with the engaging portion of the tooth mold tray 30 in pairs is formed or added to the wax denture E. Positioning when the wax denture E is attached to the tooth mold tray 30P becomes easy. The place of the engaging portion of the tooth tray 30 is not limited as long as the wax denture E can be positioned. For example, the engaging portion may be formed in the receiving groove 32, or may be formed on the surface of the tooth tray 30 outside the receiving groove 32. It may be formed. Similarly, in the case of the gingival bed 50, the spacer, and the outer shell 60, an engaging portion (for example, a convex protrusion) is provided and engaged with the engaging portion (for example, a concave groove) of the tooth tray 30. be able to.

The tooth tray 30 may be formed with one or more sprues for injecting or ventilating the denture base material.

It should be noted that a part or all of the inner wall of the receiving groove 32 may be configured as a detachable inner wall member to provide an inner wall member for a plurality of types of artificial tooth sets having different specifications, and the inner wall member may be interchangeable. By doing so, since a certain tooth type tray 30 can be shared by the inner wall members for a plurality of types of artificial tooth sets having different specifications, the number of instruments and the manufacturing cost can be reduced. The same applies to other tooth trays described later.

FIG. 5 is a diagram schematically showing another example of a tooth tray according to an embodiment of the present invention. FIG. 5 shows a plane (a) when the tooth tray is viewed from the maxillary side, and vertical cross sections (b) and (c) at the substantially center of the tooth tray. The points different from the tooth tray 30 of FIGS. 3 to 4 will be mainly described. Unlike the tooth tray 30 shown in FIG. 4, the tooth tray 30A shown in FIG. 5 has a semicircular pedestal portion 41 in a plan view and a plurality of holding portions arranged in a semicircular shape on the pedestal portion 41. 42 and. In FIG. 5, three holding portions 42 are provided, which are the upper left molars (upper left 4 to 7), upper anterior teeth (upper left 3 to upper right 3), and upper right molars (upper right 4 to 7), respectively. Corresponds to.

In each holding portion 42, a receiving groove 32 for arranging and holding the corresponding artificial dentition is formed in the central portion along the circumferential direction. The receiving groove 32 is formed in a shape (that is, a tooth shape) suitable for each artificial tooth 200 so that the artificial tooth 200 can be accommodated and the position and orientation thereof can be maintained.

Further, each holding portion 42 is configured to be detachably detachable on the pedestal portion 41. The attachment / detachment mechanism is not particularly limited, but can be realized by, for example, providing a combination of a magnet and a magnetic material, a magnet and a magnet, a male screw and a female screw, and the like at the facing portions of the holding portion 42 and the pedestal portion 41. Further, in the case of a combination of a magnet and a magnetic material, or a magnet and a magnet, one may have a convex shape and the other may have a concave shape so that the structure can be fitted to facilitate at least one of positioning and orientation.

In this way, by configuring the tooth tray 30A with the pedestal portion 41 and the separable holding portion 42 sets, the pedestal portion 41 can be shared by the holding portions 42 sets for a plurality of types of artificial tooth sets having different specifications. Therefore, the number of appliances and the manufacturing cost can be reduced. The tooth tray 30A may be composed of one pedestal portion 41 and one holding portion 42. In this case as well, the holding portion 42 for a plurality of types of artificial tooth sets having different specifications for the pedestal portion 41. Can be shared by.

Further, for example, if the holding portion 42 for the front tooth portion of a certain specification is designed so as to be able to be combined with the holding portion 42 for the back tooth portion of a plurality of specifications, the number of instruments and the manufacturing cost can be increased even in the relationship between the holding portions 42. Can be reduced.

A part of the plurality of holding portions 42 may be integrally formed with the pedestal portion 41. For example, when there are three holding portions 42 as shown in FIG. 5, one of the left and right molar holding portions 42 and the front tooth portion holding portion 42 is removable, and the other is integrally fixed to the pedestal portion 41. ..

FIG. 6 is a diagram schematically showing another example of a tooth tray according to an embodiment of the present invention. The points different from the tooth tray 30A of FIG. 5 will be mainly described. The tooth tray 30B shown in FIG. 6 is a modification of the tooth tray 30A shown in FIG. 5, and the number of holding portions 42 is different. In the example of FIG. 6, five holding portions 42 are provided, and the upper left molar portion (upper left 4 to 7), the upper left canine portion (upper left 3), and the upper anterior tooth portion (upper left 2 to upper right 2) are provided, respectively. , Corresponds to the upper right canine (upper right 3) and upper right molar (upper right 4-7).

Even in this way, the number of appliances and the manufacturing cost can be reduced even in the relationship between the holding portions 42. For example, as will be described later, in a configuration in which the back tooth holding portion 42 can move in the radial direction of the dental arch, a plurality of canine teeth having different orientations on the occlusal plane with respect to a certain anterior tooth holding portion 42. A holding portion 42 is prepared. Since the canine holding portion 42 can be selected according to the width of the jaw and the radial position of the back tooth holding portion 42 can be adjusted, the number of instruments and the manufacturing of the front tooth holding portion 42 and the back tooth holding portion 42 can be adjusted. The cost can be reduced.

FIG. 7 is a diagram schematically showing an example of a tooth tray attachment / detachment mechanism according to an embodiment of the present invention. The attachment / detachment mechanism is as described above. In the example of FIG. 7, one is configured to have a convex shape and the other to have a concave shape. More specifically, the pedestal portion 41 is provided with one detachable member 44 in the vicinity of the center of the front tooth portion and the vicinity of the center of the left and right molar portions along the arc along the three holding portions 42. .. Each holding portion 42 is provided with the other detachable member 45 near the center. If the detachable members 44 and 45 have a triangular shape as shown in the figure, the position and orientation can be easily determined. Of course, it may be another polygon or a circle.

Here, the positions and orientations of the detachable members of each holding portion 42 are set so that the specifications of the holding portion 42 set can be realized with the holding portion 42 set mounted on the pedestal portion 41. In FIG. 7, a holding portion 42 set (a) for an L size jaw and a holding portion set 42 (b) for an S size jaw are shown. The pedestal portion 41 of a certain specification can correspond to a plurality of holding portions 42 sets of specifications.

FIG. 8 is a diagram schematically showing another example of the attachment / detachment mechanism of the tooth tray according to the embodiment of the present invention. In FIG. 8, the detachable member 44 is configured so that the detachable member 45 can be attached at a plurality of places. As shown in the figure, if the detachable member 44 has a contour shape (or may be separated so as not to overlap) in which a plurality of triangles are displaced in the radial direction of the pedestal portion 41 and some of the triangles are overlapped with each other, the mounting location may be formed. Can be selected. In this way, the pedestal portion 41 of a certain specification can correspond to a larger number of holding portions 42 sets of a plurality of specifications. Of course, the detachable member 44 may be composed of other polygonal combinations or circular combinations.

FIG. 9 is a diagram schematically showing another example of the attachment / detachment mechanism of the tooth tray according to the embodiment of the present invention. In FIG. 9, the detachable member 44 is configured to be repositionable by a slide mechanism. As shown in the figure, if the triangle which is the detachable member 44 can be moved in the radial direction of the pedestal portion 41, the mounting position can be selected. In this way, the pedestal portion 41 of a certain specification can correspond to a larger number of holding portions 42 sets of a plurality of specifications. Of course, the shape of the detachable member 44 may be another polygon or a circle.

In addition, in FIGS. 8 to 9, a plurality of places or movable detachable members 44 are provided on the pedestal portion 41 side, but in place of or in addition to this, a plurality of places or movable in the radial direction on the holding portion 42 side. The detachable member 45 may be provided.

In FIGS. 3 to 9, the tooth tray for the upper jaw has been described as an example, but the same configuration can be applied to the tooth tray for the lower jaw. Further, as the associated upper and lower set, the maxillary tooth tray and the mandibular tooth tray may be integrally configured (of course, they may be detachable and detachable).

As shown in FIG. 1, in the present embodiment, the worker refers to the artificial tooth set 20 (patient artificial tooth set 20P, hereinafter referred to as artificial tooth set 20P) suitable for the patient from the artificial tooth set group 2. ) Is selected. Further, the worker selects a tooth tray 30 (patient tooth tray 30P, hereinafter referred to as a tooth tray 30P) suitable for the patient artificial tooth set 20P from the tooth tray group 3. The operator can use the tooth tray 30P as a tool to prepare a denture for a patient equipped with an artificial tooth set 20P by various methods.

Next, an example of a method for manufacturing a denture using the dental technician instrument set according to the present embodiment will be described. Hereinafter, examples of a plurality of manufacturing methods will be specifically described. In order to facilitate understanding, the case of continuously producing a complete denture for the maxilla will be described. As the tooth tray 30, any of the tooth trays described in FIGS. 3 to 9 may be used.

<Method 1>
Method 1 is a method of using the dental technician instrument set according to the present embodiment in order to produce a so-called wax denture. After producing the wax denture, the denture can be produced by performing modeling and polymerization by a conventional method. Hereinafter, the method 1 will be described with reference to FIGS. 10 and 11. FIG. 10 is a diagram schematically illustrating an example (method 1) of a method for manufacturing a denture according to an embodiment of the present invention. FIG. 11 is an end view illustrating the relationship between the jaw model, the wax denture, and the tooth tray in Method 1.

For convenience of explanation, the manufacturing process is described by dividing it into four steps S1 to S4, but the method and number of steps are not limited to this. The same applies to the other methods described later.

Step S1:
A jaw model A and an occlusal bed D for a patient are prepared in advance by a conventional method (FIG. 10 (a)). The occlusal bed D is composed of a foundation bed B and a wax pad (occlusal pad) C. Of course, the occlusal floor D is not limited to being composed of two parts, the foundation floor B and the wax sill C, and may be composed of one part or three or more parts.

Step S2:
The artificial tooth set 20P for the patient is selected from the artificial tooth set group 2, and the tooth type tray 30P for the patient is selected from the tooth type tray group 3 (FIG. 10A). In selecting the artificial tooth set 20P, for example, the aspect of the patient's jaw (size, shape, etc.), the aspect of the tooth and gingiva that suits the patient's face (size, shape, color, etc.) are examined in a complex manner, and these are used. A matching artificial tooth set 20 may be selected. As the tooth tray 30P, a tooth tray 30 having specifications suitable for the selected artificial tooth set 20P may be selected.

Step S3:
The artificial tooth set 20P selected in step S2 is arranged and embedded in the wax pad C of the occlusal bed D. As a result, the wax denture E is completed (FIG. 10 (b)). The wax denture E is composed of a foundation floor B and a molded wax denture C'. Here, the combination of the foundation bed B and the wax denture C'is referred to as a wax denture bed D'. As described above, the wax denture base D'is not limited to the two parts of the foundation bed B and the wax denture C', but may be composed of one part or three or more parts.

As an example of the procedure for arranging and burying the artificial teeth 200 constituting the artificial tooth set 20P, first, the artificial teeth 200 are arranged in the receiving groove 32 of the tooth tray 30P. Next, the occlusal bed D is attached to an instrument such as an articulator together with the jaw model A, and each artificial tooth 200 is placed facing the wax holder C and pressed while grasping the tooth mold tray 30P with a hand or an instrument. The wax tool C is melted and scraped to fill it. By doing so, the artificial dentition can be embedded in the wax sill C while maintaining the accurate arrangement in the tooth tray 30P.

As another example of the procedure for arranging and burying each artificial tooth 200 constituting the artificial tooth set 20P, first, each artificial tooth 200 corresponding to the reference upper anterior tooth portion (for example, upper left 2nd to upper right 2) is used. The artificial teeth 200 are arranged in the receiving groove 32 of the tooth mold tray 30P, and the artificial teeth 200 are connected with wax or an adhesive. Next, the occlusal bed D is attached to an instrument such as an articulator together with the jaw model A, and the connected anterior teeth are embedded in the wax pad C without using the tooth mold tray 30P while grasping the connected anterior teeth with a hand or an instrument. Next, the remaining artificial teeth 200 are arranged in the receiving groove 32 of the tooth tray 30P. Next, while gripping the tooth tray 30P with a hand or an instrument, the anterior tooth portion embedded in the wax support C is inserted into the corresponding receiving groove 32, and the remaining artificial teeth 200 are arranged facing the wax support C. The wax tray C is melted or scraped to fill it by pressing it. In this way, the remaining artificial dentition can be embedded in the wax sill C while maintaining an accurate arrangement in the tooth tray 30P based on the position and orientation of the previously embedded anterior tooth portion.

When the jaw model A, the wax denture bed D'(foundation bed B, wax denture C'), the artificial tooth set 20P, and the tooth mold tray 30P are all stacked, the positional relationship is as shown in FIG. The root side of the artificial tooth 200 is joined to the wax blade C'. When the artificial tooth 200 is composed of only the tooth portion 201, the gingival portion 202 is replaced with the wax pad C'.

If the artificial teeth 200 interfere with the foundation floor B when they are arranged and buried, the interference points of the artificial teeth 200 or the foundation floor B are scraped, and if they interfere with the jaw model A, the interference points of the artificial teeth 200 are removed. Just scrape it.

Step S4:
By the conventional method, the jaw model A produced in step S1 and the wax denture E produced in step S3 are overlapped and embedded in a flask (not shown) in an elephant material (not shown) such as plaster. (FIG. 10 (c)). The jaw model A and the tooth portion 201 are left in the molding die (not shown) produced by the elephant, and the wax denture base D'and the gingival portion 202 are removed from the molding die (FIG. 10 (d)). If the gingival portion 202 is made of a material that can be used as a part of the denture base, the gingival portion 202 may be left. Finally, a denture for a patient is completed by injecting a denture base material such as resin into the molding space (including the wax prosthesis D'and the portion corresponding to the gingival portion 202) in the molding die and polymerizing the denture. .. Of course, in step S4, other modeling methods such as the silicon core method can be applied without being limited to the burial method, other polymerization methods such as the pouring method can be applied not only to the injection method, and thermoplasticity is not limited to the resin. Other denture base materials such as resin can be used.

In step S3, the arranged and embedded artificial tooth set 20P may be treated as a temporary artificial tooth set 20P1, and an artificial tooth set 20P2 which is a copy of the artificial tooth set 20P1 may be separately produced. In this case, in step S4, the wax denture E may be removed from the molding die, and the tooth portion 201 (or the tooth portion 201 and the gingival portion 202) of the artificial tooth set 20P2 may be fitted into the molding die for polymerization. By doing so, it is possible to deal with the problem that the adhesiveness to the denture base material is deteriorated due to the adhesion of wax to the artificial tooth.

<Method 2>
Method 2 is a modification of method 1. Hereinafter, the method 2 will be described with reference to FIG. FIG. 12 is a diagram schematically illustrating an example (method 2) of a method for manufacturing a denture according to an embodiment of the present invention.

Steps S1, S2, S3:
These steps are the same as in Method 1 (FIGS. 12 (a) and 12 (b)).

Step S4:
The jaw model A produced in step S1, the wax denture E produced in step S3, and the tooth mold tray 30P selected in step S2 are overlapped with each other, and an elephant material such as plaster (not shown) is placed in a flask (not shown). It is buried in the flask (Fig. 12 (c)). The wax prosthesis D'and the gingival portion 202 are removed from the molding die, leaving the jaw model A, the tooth portion 201, and the tooth mold tray 30P in the molding die (not shown) produced by the elephant (FIG. 12). (D)). If the gingival portion 202 is made of a material that can be used for a part of the denture base, the gingival portion 202 may be left. Finally, a denture for a patient is completed by injecting a denture base material such as resin into the molding space (including the wax prosthesis D'and the portion corresponding to the gingival portion 202) in the molding die and polymerizing the denture. ..

As in method 1, in step S3, the arranged and embedded artificial tooth set 20P may be treated as a temporary artificial tooth set 20P1 and an artificial tooth set 20P2 which is a copy of the artificial tooth set 20P1 may be separately produced. good. In this case, in step S4, the wax denture E may be removed from the molding die, and the tooth portion 201 (or the tooth portion 201 and the gingival portion 202) of the artificial tooth set 20P2 may be fitted into the tooth mold tray 30P for polymerization. By doing so, it is possible to deal with the problem that the adhesiveness to the denture base material is deteriorated due to the adhesion of wax to the artificial tooth.

<Method 3>
Method 3 is a method of preparing the gingival bed 50 without producing the occlusal bed D and the wax denture E. The gingival bed 50 is a member located between the tooth tray 30P and the jaw model A and defining the positional relationship between them. Hereinafter, the method 3 will be described with reference to FIG. FIG. 13 is a diagram schematically illustrating an example (method 3) of a method for manufacturing a denture according to an embodiment of the present invention. FIG. 14 is an end view illustrating the relationship between the jaw model, the gingival bed, and the tooth tray in Method 3.

Step S1:
A jaw model A for a patient is prepared in advance by a conventional method (FIG. 13 (a)). It is not necessary to prepare the foundation floor B and the wax sill C.

Step S2:
The artificial tooth set 20P for the patient is selected from the artificial tooth set group 2, and the tooth type tray 30P for the patient is selected from the tooth type tray group 3 (FIG. 13A). This step is the same as in method 1.

Step S3:
These positional relationships are located between the tooth mold tray 30P selected in step S2 and the jaw model A produced in step S1 and match the surface of the receiving groove 32 of the tooth mold tray 30P and the surface of the jaw model A. A gingival bed 50 is prepared (FIG. 13 (b)).

As an example of the procedure for producing the gingival bed 50, first, the jaw model A is attached to an instrument such as an articulator, and the forming material (resin or the like) of the gingival bed 50 is pressed against the surface of the jaw model A while being piled up. As a result, the surface of the gingival bed 50 on the jaw model A side is formed. Next, the tooth tray 30P is grasped by a hand or an instrument and arranged so as to be in a desired position and orientation with respect to the jaw model A, and the tooth tray 30P side of the forming material piled up on the jaw model A. Mold the surface of. For example, a part of the forming material is formed so as to be fitted and held in at least a part of the receiving groove 32 of the tooth mold tray 30P so that the relative position between the gingival bed 50 and the tooth mold tray 30P is defined. do. The position and orientation of the tooth tray 30P with respect to the jaw model A correspond to the position and orientation of the artificial tooth set 20P with respect to the jaw model A. The forming material may be molded with at least a part of the artificial teeth 200 of the artificial tooth set 20P fitted in the tooth tray 30P. The excess forming material on the outer peripheral surface and the inner peripheral surface of the gingival bed 50 may be removed or leveled to adjust the surface shape. In this way, the gingival bed 50 is shaped and formed.

When the jaw model A, the gingival bed 50, and the tooth tray 30P are all stacked, the positional relationship is as shown in FIG. A part of the gingival bed 50 on the tooth mold tray 30P side is fitted and held in the receiving groove 32. Although not shown, the gingival bed 50 includes, for example, a jaw ridge of the jaw model A and a U-shaped bow portion along the receiving groove 32. A palate portion inside the bow portion (a thin portion facing the palate of the jaw model A) may be provided, but it is not essential.

Step S4:
The jaw model A produced in step S1, the gingival bed 50 produced in step S3, and the tooth mold tray 30P selected in step S2 are overlapped with each other, and an elephant material such as plaster (not shown) is placed in a flask (not shown). It is buried in the flask (Fig. 13 (c)). When the forming material is molded with at least a part of the artificial teeth 200 of the artificial tooth set 20P fitted in the tooth mold tray 30P in step S3, the at least a part of the artificial teeth 200 is fitted in the tooth mold tray 30P. It may be buried in the state of being fitted in 30P. The jaw model A and the tooth mold tray 30P are left in the molding die (not shown) made by the elephant, and the gingival bed 50 is removed from the molding die (FIG. 13 (d)). Finally, the tooth portion 201 (the gingival portion 202 is not required) of the artificial tooth set 20P is fitted into the tooth mold tray 30P, and the resin is inserted into the molding space (including the gingival base 50 and the portion corresponding to the gingival portion 202) in the molding mold. By injecting and polymerizing a denture base material such as, a denture for a patient is completed. When the gingival portion 202 is made of a material that can be used as a part of the denture base, the gingival portion 202 may be fitted into the tooth mold tray 30P.

<Method 4>
Method 4 is a method of producing the outer shell 60 without producing the occlusal bed D and the wax denture E. The outer shell 60 is a member for forming a molding space including a portion corresponding to the denture base inside. Hereinafter, the method 4 will be described with reference to FIG. FIG. 15 is a diagram schematically illustrating an example (method 4) of a method for manufacturing a denture according to an embodiment of the present invention. FIG. 16 is an end view illustrating the relationship between the jaw model, the outer shell, and the tooth-shaped tray in Method 4.

Step S1:
A jaw model A for a patient is prepared in advance by a conventional method (FIG. 15 (a)). It is not necessary to prepare the foundation floor B and the wax sill C.

Step S2:
The artificial tooth set 20P for the patient is selected from the artificial tooth set group 2, and the tooth type tray 30P for the patient is selected from the tooth type tray group 3 (FIG. 15A). This step is the same as in method 1.

Step S3:
An outer shell 60 is prepared to form an inner shell 60 including a portion corresponding to a denture base located between the tooth tray 30P selected in step S2 and the jaw model A prepared in step S1 (FIG. 15 (b). )).

As an example of the procedure for producing the outer shell 60, first, the jaw model A is attached to an instrument such as an articulator, and a spacer (not shown) forming material (resin or the like) is pressed against the surface of the jaw model A while being piled up. .. As a result, the surface of the spacer on the jaw model A side is formed. Next, the tooth tray 30P is grasped by a hand or an instrument and arranged so as to be in a desired position and orientation with respect to the jaw model A, and the tooth tray 30P side of the forming material piled up on the jaw model A. Mold the surface of. For example, a part of the forming material is formed so as to be fitted and held in at least a part of the receiving groove 32 of the tooth tray 30P so that the relative position between the spacer and the tooth tray 30P is defined. The position and orientation of the tooth tray 30P with respect to the jaw model A correspond to the position and orientation of the artificial tooth set 20P with respect to the jaw model A. The forming material may be molded with at least a part of the artificial teeth 200 of the artificial tooth set 20P fitted in the tooth tray 30P. The excess forming material on the outer peripheral surface and the inner peripheral surface of the spacer may be removed or leveled to adjust the surface shape. In this way, the spacer is shaped and formed. Although not shown, the spacer includes, for example, a ridge of the jaw model A and a U-shaped bow portion along the receiving groove 32. A palate portion inside the bow portion (a thin portion facing the palate of the jaw model A) may be provided, but it is not essential.

Then, with the jaw model A, the spacer, and the tooth tray 30P mounted on top of each other, the outer shell 60 that encloses the shape of the spacer is formed so as to surround the spacer between the jaw model A and the tooth tray 30P. Press while filling the material (resin, etc.). As a result, the inner surface of the jaw model A, the tooth tray 30P, and the outer shell 60 that abuts along the outer shape of the spacer is formed. Then, when the material for forming the outer shell 60 is hardened, the jaw model A and the tooth tray 30P are removed from the outer shell 60, and the spacer is removed. In this way, the outer shell 60 and the molding space 70 contained therein are imitated and formed.

When the jaw model A, the outer shell 60, and the tooth tray 30P are all stacked, the positional relationship is as shown in FIG. Inside the outer shell 60, a molding space 70 including a portion corresponding to a spacer is formed. The outer peripheral wall 61 of the outer shell 60 surrounds the outer periphery of the molding space 70, and the upper portion abuts on the outer peripheral surface of the jaw model A and the lower portion abuts on the outer peripheral edge portion of the upper surface of the tooth tray 30P. The inner peripheral wall 62 of the outer shell 60 surrounds the inner circumference of the molding space 70, the upper part forms a palate portion which is arranged opposite to the palate of the jaw model A, and the lower part is the inner peripheral edge portion of the upper surface of the tooth tray 30P. Is in contact with. If there is a gap at the point where it should come into contact, a forming material may be added and filled as appropriate. The palate portion is not essential, and in this case, the upper portion of the inner peripheral wall 62 of the outer shell 60 extends toward the jaw model A and abuts on it.

Step S4:
The jaw model A produced in step S1 is attached to the outer shell 60 produced in step S3, and the tooth tray 30P selected in step S2 is attached to the tooth portion 201 (gingival portion 202) of the artificial tooth set 20P selected in step S2. Is not required) and is attached to the outer shell 60 (FIG. 15 (c)). Finally, a denture for a patient is completed by injecting a denture base material such as a resin into a molding space 70 (including a spacer and a portion corresponding to the gingival portion 202) and polymerizing the denture. When the gingival portion 202 is made of a material that can be used as a part of the denture base, the gingival portion 202 may be fitted into the tooth mold tray 30P.

In the method 4, by using the outer shell 60, for example, it is not necessary to use a flask, and the denture manufacturing process can be simplified.

The embodiment of the present invention has been described above. According to this embodiment, by using an artificial tooth set and a tooth mold tray selected from standard products, a skilled person can produce highly accurate dentures (particularly, artificial tooth arrangement and gingival formation that require conventional skill). It can be done easily, quickly, efficiently, and at low cost. In addition, the amount of the gingival forming material used can be reduced, and the decrease in accuracy due to shrinkage deformation of the gingival forming material can be reduced. Further, in the process of manufacturing the denture, by appropriately replacing the used standard product with an unused standard product, it is possible to avoid the problem of deterioration of adhesiveness due to adhesion of a material such as a gingival forming material.

In the above-described embodiment, the denture is manufactured by using the actual tool, but in order to further improve the efficiency of the denture manufacturing, the three-dimensional shape data and the computer software can be used in some steps. Hereinafter, a specific description will be given.

FIG. 17 is a diagram showing a configuration example of a shape data generation device according to an embodiment of the present invention.

The shape data generation device 100 is a device that edits the three-dimensional shape data of an object such as a tooth tray or outputs the three-dimensional shape data to the modeling device to form the actual object according to the operation of the operator. be.

The shape data generation device 100 includes a processing unit 110, a storage unit 120, an input unit 130, a display unit 140, and a communication unit 150. The shape data generation device 100 includes a processor such as a CPU (Central Processing Unit), a memory such as a DRAM (Dynamic Random Access Memory), a storage such as an HDD (Hard Disk Drive) and an SSD (Solid State Drive), a keyboard, a mouse, and a touch panel. It consists of a general computer equipped with an input device such as an input device such as a display, a display device such as a display, and a communication module (none of which is shown) such as an NIC (Network Interface Card).

The processing unit 110 is realized by a computer processor. The processing unit 110 has each functional block of a shape data acquisition unit 111, a shape data editing unit 112, and a shape data output unit 113. These functional blocks are realized by the processor of the computer executing a predetermined program loaded in memory.

The storage unit 120 is realized by the memory and storage of the computer. The input unit 130 is realized by an input device of a computer. The display unit 140 is realized by a display device of a computer. The communication unit 150 is realized by a communication module of a computer. The communication unit 150 connects to an external device such as the database 160, the three-dimensional scanning device S, and the modeling device P via the network N to communicate various data and information. The network N is a two-way communication network represented by a LAN (Local Area Network), the Internet, a mobile phone communication network, and the like.

The database 160 includes an artificial tooth set shape data group 161 which is a set of three-dimensional shape data of each artificial tooth set 20 included in the artificial tooth set group 2 (see FIG. 1) and a tooth mold tray group 3 (see FIG. 1). ) Is stored in the tooth mold tray shape data group 162, which is a set of three-dimensional shape data of each tooth mold tray 30. Naturally, the three-dimensional shape data of the artificial tooth set 20 includes the three-dimensional shape data of each artificial tooth 200. The three-dimensional shape data is, for example, CAD (Computer Aided Design) data. The database 160 is operated, for example, by a medical device manufacturer.

The three-dimensional scanning device S is, for example, a 3D scanner, and includes a device that scans by various scanning methods. The modeling device P is, for example, a 3D printer or a cutting device, and includes a device that performs modeling by various modeling methods.

The shape data acquisition unit 111 acquires data (shape data of the artificial tooth set 20, shape data of the tooth shape tray 30, etc.) stored therein from the database 160 on the network N via the communication unit 150. Of course, at least a part of the data stored in the database 160 may be stored in the storage unit 120 in advance, and the shape data acquisition unit 111 may acquire the shape data from the storage unit 120.

Further, the shape data acquisition unit 111 may acquire the three-dimensional shape data of an object such as a jaw model scanned by the three-dimensional scan device S from the three-dimensional scan device S on the network N via the communication unit 150. .. Of course, the three-dimensional shape data may be acquired from other places such as the storage unit 120, the portable recording medium, and the cloud storage.

The shape data editing unit 112 displays the three-dimensional shape data editing screen on the display unit 140, and receives an operator's editing operation on the displayed three-dimensional shape data via the input unit 130. Specific functions will be described later.

The shape data output unit 113 sends the three-dimensional shape data of the designated object to the modeling device P via the communication unit 150 to execute modeling. Of course, the three-dimensional shape data may be converted into a format that can be interpreted by the modeling apparatus P. The shape data output unit 113 may not output the data directly to the modeling device P, but may output the data to other software on the shape data generating device 100, for example, driver software or application software for the modeling device P.

A part or all of the above-mentioned functional blocks constituting the shape data generation device 100 may be realized by hardware such as an integrated circuit. Further, the shape data generation device 100 may be realized by a plurality of computers, and in that case, the above-mentioned functional blocks may be distributed and arranged in the plurality of computers. Further, the shape data generation device 100 may be arranged on the cloud to receive operations from the operator's computer via the network N.

<Example of utilization of shape data generation device in method 1 and method 2>
In the above-mentioned method 1 and method 2, the shape data generation device 100 can be used in step S2.

Step S2:
The shape data acquisition unit 111 accepts input of an identifier such as a model number of the selected artificial tooth set 20P according to the operation of the operator on the operation screen. The shape data acquisition unit 111 refers to the database 160, identifies a matching tooth mold tray 30 (that is, the tooth mold tray 30P) associated with the identifier of the artificial tooth set 20P, and acquires the three-dimensional shape data thereof. The shape data output unit 113 outputs the acquired three-dimensional shape data of the tooth tray 30P to the modeling device P in response to the operation of the operator on the operation screen, and causes the actual tooth tray 30P to be modeled.

By doing so, it is not necessary for the medical device maker to manufacture and stock a large number of actual tooth trays 30, and the worker can manufacture the tooth tray 30P as needed.

<Example of utilization of shape data generation device in method 3>
In the above-mentioned method 3, the shape data generation device 100 can be used in steps S2 and S3.

Step S2:
Similar to the method 1, the shape data acquisition unit 111 acquires the three-dimensional shape data of the tooth tray 30P, and the shape data output unit 113 causes the modeling apparatus P to model the actual product of the tooth tray 30P.

Step S3:
The jaw model A is scanned by the three-dimensional scanning device S, and the three-dimensional shape data thereof is created. The shape data acquisition unit 111 acquires the shape data of the jaw model A from the three-dimensional scanning device S according to the operation of the operator on the operation screen. The shape data of the artificial tooth set 20P may be acquired from the database 160. Then, the shape data editing unit 112 displays the acquired shape data of the jaw model A and the tooth tray 30P on the virtual three-dimensional space according to the operation of the operator on the operation screen, and has a desired positional relationship. Adjust the position and orientation so that Further, the shape data editing unit 112 draws the shape data of the gingival bed 50 between the jaw model A and the tooth tray 30P according to the operation of the operator. The shape data of the gingival bed 50 may be drawn with the shape data of at least a part of the artificial teeth 200 of the artificial tooth set 20P fitted in the shape data of the tooth tray 30P. In the shape data of the gingival base 50, an engaging portion (for example, a convex protrusion) that engages with the engaging portion of the tooth tray 30 in pairs may be drawn. The shape data output unit 113 outputs the three-dimensional shape data of the created gingival bed 50 to the modeling device P in response to the operation of the operator on the operation screen, and causes the actual gingival bed 50 to be modeled.

By doing so, it is possible to eliminate the labor-intensive manual work of molding the gingival bed 50 and to easily and efficiently manufacture the gingival bed 50 by operating on a computer.

<Utilization of shape data generation device in method 4>
In the above-mentioned method 4, the shape data generation device 100 can be used in steps S2 and S3.

Step S2:
Similar to the method 1, the shape data acquisition unit 111 acquires the three-dimensional shape data of the tooth tray 30P. However, in this step, the actual tooth tray 30P is not modeled.

Step S3:
The jaw model A is scanned by the three-dimensional scanning device S, and the three-dimensional shape data thereof is created. The shape data acquisition unit 111 acquires the shape data of the jaw model A from the three-dimensional scanning device S according to the operation of the operator on the operation screen. The shape data of the artificial tooth set 20P may be acquired from the database 160. Then, the shape data editing unit 112 displays the acquired shape data of the jaw model A and the tooth tray 30P on the virtual three-dimensional space according to the operation of the operator on the operation screen, and has a desired positional relationship. Adjust the position and orientation so that Further, the shape data editing unit 112 draws the shape data of the spacer between the jaw model A and the tooth tray 30P according to the operation of the operator. The shape data of the spacer may be drawn with the shape data of at least a part of the artificial teeth 200 of the artificial tooth set 20P fitted in the shape data of the tooth tray 30P. In the shape data of the spacer, an engaging portion (for example, a convex protrusion) that engages with the engaging portion of the tooth tray 30 in pairs may be drawn. The shape data output unit 113 outputs the three-dimensional shape data of the created gingival bed 50 to the modeling device P in response to the operation of the operator on the operation screen, and causes the actual gingival bed 50 to be modeled.

Then, the shape data editing unit 112 draws the shape data of the outer shell 60 including the shape of the spacer so as to surround the spacer between the jaw model A and the tooth tray 30P according to the operation of the operator. Then, the molding space 70 is provided by removing the shape data of the spacer. In the shape data of the outer shell 60, an engaging portion (for example, a convex protrusion) that engages with the engaging portion of the tooth tray 30 in pairs may be drawn. Here, the shape data of the outer shell 60 and the shape data of the tooth tray 30P are set as one combined shape data.

The shape data output unit 113 outputs the shape data of the created outer shell 60 and the tooth tray 30P to the modeling device P in response to the operation of the operator on the operation screen, and causes the actual product to be modeled. In step S4, the jaw model A produced in step S1 may be attached to the outer shell 60. In step S3, three-dimensional shape data in which the jaw model A and the outer shell 60 are combined may be generated and modeled. In this case, in step S4, the actual tooth mold tray 30P procured from the manufacturer or the like may be prepared, or the actual tooth mold tray 30P may be formed and attached to the outer shell 60.

The outer shell 60 can be easily and efficiently manufactured by operating on a computer without the labor-intensive manual work of molding the spacer and the outer shell 60.

As described above, by using the three-dimensional shape data and computer software in some steps, it is possible to manufacture a denture easily, in a short time, and at low cost even if the person is not an expert.

Depending on the condition of the patient's oral cavity and jaw, the standard artificial tooth set 20 may not be used as it is. For example, the length of the artificial tooth 200 on the root side may be too long for the patient. Therefore, the shape data generation device 100 may be able to edit the shape of each artificial tooth 200 of the artificial tooth set 20. Specifically, the shape data acquisition unit 111 refers to the database 160 according to the operation of the operator, and acquires the three-dimensional shape data of the selected artificial tooth set 20P. Then, the shape data editing unit 112 displays the acquired shape data of the jaw model A and the artificial tooth set 20P on the virtual three-dimensional space according to the operation of the operator, and has a desired positional relationship. Adjust the position and orientation. Further, the shape data editing unit 112 accepts editing (changing the shape) of the shape data of the target artificial tooth 200 in the artificial tooth set 20P according to the operation of the operator. The shape data output unit 113 outputs the three-dimensional shape data of the edited artificial tooth set 20P (or the target artificial tooth 200) to the modeling device P according to the operation of the operator, and outputs the artificial tooth set 20P (or the artificial tooth set 20P). The actual product of the target artificial tooth 200) is modeled. Of course, if the artificial tooth set 20P (or the target artificial tooth 200) after editing is smaller than that before editing, the three-dimensional shape data of the difference before and after editing is output to the modeling device P (cutting device, etc.). , The difference portion may be cut from the actual product of the artificial tooth set 20P (or the target artificial tooth 200).

In each of the above embodiments, the jaw model A can be produced by taking an impression as in the conventional case, but for example, a three-dimensional scanning device S capable of scanning the oral cavity is used to form a three-dimensional shape in the oral cavity of the patient. Data may be generated. In this case, the shape data acquisition unit 111 acquires the shape data in the oral cavity of the patient from the three-dimensional scanning device S. Then, the shape data editing unit 112 displays the acquired shape data in the oral cavity of the patient on the virtual three-dimensional space according to the operation of the operator, and draws the shape data of the portion corresponding to the jaw model A. do. The shape data output unit 113 outputs the three-dimensional shape data of the created jaw model A to the modeling device P in response to the operation of the operator, and causes the actual jaw model A to be modeled.

Although the application example to the complete denture for the maxilla has been mainly described above, it goes without saying that the present invention can also be applied to the production of the complete denture for the lower jaw and the local denture. In the case of a local denture, one or more artificial teeth 200 of the selected artificial tooth set 20P may be used. Further, the wax denture E, the gingival bed 50, the spacer, and the outer shell 60 may be partially manufactured at the production site of the local denture.

The present invention is not limited to the dental technician instrument set, and can be provided in various embodiments such as an artificial tooth set, an artificial tooth, a tooth mold tray, a denture manufacturing method, a program, and a denture manufacturing system included therein.

1 ... Denture equipment set, 2 ... Artificial tooth set group, 3 ... Tooth type tray group, 20 ... Artificial tooth set, 20P ... Patient artificial tooth set, 30 ... Tooth type tray, 30P ... Patient tooth type tray, 31 ... Main body, 32 ... Groove, 41 ... Pedestal, 42 ... Holding, 44 ... Detachable member, 45 ... Detachable member, 50 ... Denture base, 60 ... Outer shell, 61 ... Outer wall, 62 ... Inner peripheral wall, 70 ... Molding space, 100 ... shape data generation device, 110 ... processing unit, 111 ... shape data acquisition unit, 112 ... shape data editing unit, 113 ... shape data output unit, 120 ... storage unit, 130 ... input unit, 140 ... display unit , 150 ... Communication unit, 160 ... Database, 161 ... Artificial tooth set shape data group, 162 ... Tooth type tray shape data group, 200 ... Artificial tooth, 201 ... Tooth part, 202 ... Denture part, A ... Jaw model, B ... Foundation bed, C ... wax sill, D ... occlusal bed, D'... wax denture, E ... wax denture, N ... network, P ... modeling device, S ... dimension scanning device

Claims (16)

A set of dental technicians used to manufacture dentures
A group of artificial tooth sets including a plurality of artificial tooth sets having different specifications is provided, and each artificial tooth set includes a plurality of artificial teeth.
A patient artificial tooth set suitable for the patient is selected from the artificial tooth set group, and at least one artificial tooth included in the patient artificial tooth set is a patient tooth type tray suitable for the patient artificial tooth set. A set of dental technicians that is used to be embedded in the patient's occlusal bed or polymerized into a denture base material using the patient tooth mold tray. The dental technician instrument set according to claim 1.
A tooth type tray group including a plurality of tooth type trays having different specifications is provided, and each tooth type tray is compatible with any of the artificial tooth sets and can arrange a plurality of artificial teeth of the artificial tooth set.
The patient tooth tray is a dental technician instrument set selected from the tooth tray group to fit the patient artificial tooth set. The dental technician instrument set according to claim 1.
A tooth type tray shape data group including shape data of a plurality of tooth type trays having different specifications is provided, and each tooth type tray is compatible with any of the artificial tooth sets, and a plurality of artificial teeth of the artificial tooth set can be provided. Can be arranged and
The patient tooth tray is a dental technician instrument set produced based on the shape data of the tooth tray selected from the tooth tray shape data group to be suitable for the patient artificial tooth set. A dental technician instrument set according to any one of claims 1 to 3.
The patient tooth mold tray is used for embedding in the occlusal bed of the patient with the at least one artificial tooth arranged, or the denture bed with the at least one artificial tooth arranged. A set of dental technician instruments that are polymerized with the materials. The dental technician instrument set according to any one of claims 1 to 4.
The at least one artificial tooth comprises a tooth portion and a gingival portion that are removable from each other.
A dental technician instrument set that is polymerized on the denture base material without or after removing the gingival portion from the artificial tooth. The dental technician instrument set according to any one of claims 1 to 5.
The tooth tray is a dental technician instrument set in which a receiving groove is formed for accommodating at least one artificial tooth with the surface on the root side exposed. The dental technician instrument set according to any one of claims 1 to 6.
At least one of the tooth trays comprises a pedestal portion and one or more holding portions detachable from the pedestal portion.
The holding portion is a dental technician instrument set in which a receiving groove is formed for accommodating at least one artificial tooth with the surface on the root side exposed. It ’s a method of manufacturing dentures.
An artificial tooth set group including a plurality of artificial tooth sets having different specifications, and each artificial tooth set selects a patient artificial tooth set suitable for a patient from the artificial tooth set group including a plurality of artificial teeth. The first step to do and
The second step of preparing a patient tooth tray suitable for the patient artificial tooth set, and
At least one artificial tooth included in the patient artificial tooth set is embedded in the occlusal bed of the patient using the patient tooth mold tray, or used as a material for a denture base using the patient tooth mold tray. A method for producing a denture, comprising a third step of producing the denture for the patient by polymerization. The method for manufacturing a denture according to claim 8.
The second step is a group of tooth mold trays including a plurality of tooth mold trays having different specifications, and each tooth mold tray is compatible with any of the artificial tooth sets and a plurality of artificial tooth sets of the artificial tooth set. A method for manufacturing a denture in which a tooth type tray for a patient is selected from a group of tooth type trays capable of arranging teeth so as to fit the artificial tooth set for the patient. The method for manufacturing a denture according to claim 8.
The second step is a tooth type tray shape data group including shape data of a plurality of tooth type trays having different specifications, and each tooth type tray is compatible with any of the artificial tooth sets and the artificial tooth. From the tooth type tray shape data group capable of arranging a plurality of artificial teeth in the set, the shape data of the tooth type tray is selected so as to match the artificial tooth set for the patient, and the above-mentioned is performed based on the selected shape data. A method for manufacturing a prosthesis for producing a tooth mold tray for a patient. The method for manufacturing a denture according to any one of claims 8 to 10.
In the third step, the at least one artificial tooth is arranged in the patient tooth mold tray, and the patient tooth mold tray is relocated while facing the occlusal bed of the patient, or the patient tooth. A method for manufacturing a denture for producing a wax denture of the patient by connecting the dentures on a mold tray and then removing the denture and transferring the denture to the occlusal bed of the patient. The method for manufacturing a denture according to any one of claims 8 to 10.
In the third step, a gingival bed located between the patient's tooth mold tray and the patient's jaw model and defining the positional relationship between them is prepared, and between the jaw model and the patient's tooth mold tray. A method for producing a denture in which the placed gingival bed is modeled, the gingival bed is removed, and the denture base is replaced with a material for the denture base. The method for manufacturing a denture according to any one of claims 8 to 10.
In the third step, an outer shell forming an outer shell including a portion corresponding to a denture base located between the patient's tooth mold tray and the patient's jaw model is prepared, and the patient's jaw model and the patient's jaw model are prepared. A method for manufacturing a denture in which the outer shell is attached to the patient tooth mold tray and the material for the denture base is injected into the molding space. A program used to manufacture dentures
It is a tooth type tray shape data group including shape data of a plurality of tooth type trays having different specifications, and each tooth type tray can arrange a plurality of artificial teeth of the artificial tooth set of the corresponding specifications. A computer is made to perform a shape data acquisition step of acquiring shape data of a patient tooth mold tray suitable for the patient's artificial tooth set from the tooth mold tray shape data group.
In the manufacture of the denture for the patient, at least one artificial tooth included in the patient artificial tooth set uses the actual patient tooth mold tray corresponding to the shape data of the patient tooth mold tray. A program that is embedded in the patient's occlusal bed or polymerized into a denture base material using the actual patient tooth mold tray. The program according to claim 14.
The acquired shape data of the patient's tooth mold tray and the shape data of the patient's jaw model are arranged in a virtual three-dimensional space, and are located between the patient's tooth mold tray and the patient's jaw model. Let the computer perform the shape data editing step, which creates the shape data of the gingival base that defines the positional relationship of
In the manufacture of the denture for the patient, the actual gingival bed is produced based on the shape data of the gingival bed and placed between the actual actual jaw model of the patient and the actual actual tooth mold tray for the patient. A program in which the actual gingival bed is removed and replaced with the material for the denture base after the actual gingival bed is modeled. The program according to claim 14.
The acquired shape data of the patient's tooth mold tray and the shape data of the patient's jaw model are arranged in a virtual three-dimensional space, and the artificial dentition bed located between the patient's tooth mold tray and the patient's jaw model. To make the computer execute the shape data editing step, which creates the shape data of the outer shell that forms the molding space including the part corresponding to the inside.
In the manufacture of the denture for the patient, the actual outer shell is produced based on the shape data of the outer shell, and the actual outer shell is added to the actual jaw model of the patient and the actual tooth mold tray for the patient. A program that is mounted and injects the denture base material into the molding space.

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