JP6388508B2 - Artificial tooth manufacturing method - Google Patents

Description

  The present invention relates to a mold for molding a crown and a method for manufacturing an artificial tooth by molding an artificial tooth using a mold for molding a neck of a tooth.

  It is difficult to investigate the identity of a victim who has been injured or died in an accident or disaster if he does not carry a driver's license or insurance card. In order to cope with such a case, various techniques have been developed (see, for example, Patent Documents 1 to 3).

  The personal data storage device described in Patent Document 1 has a built-in element that stores personal data such as name, blood type, and medical history in the hole of the crown prosthesis, and covers a relatively thin lid from the front side. The periphery is sealed by brazing, electron beam welding, or adhesion.

  The identification device described in Patent Literature 2 is covered with a metal appliance, and a flash memory storing information is arranged inside a dental crown used as a carrier of the device and arranged on a cut natural tooth crown. The flash memory is hidden inside the user's teeth. In addition, the identification device of Patent Document 2 describes that a chip in which information is stored is placed on a dental post, placed on a dental implant, or placed on a dental bone screw. .

  The platen denture described in Patent Document 3 stores information that identifies the wearer, and a transmitting element that transmits information as a radio signal is stored in a recess provided in the center of the artificial tooth supported by the denture base. In this case, the recess in which the transmitting element is stored is filled with resin as a lid.

Japanese Patent Laid-Open No. 7-241301 Utility Model Registration No. 3165873 JP2013-109745A

  In the personal data storage device described in Patent Document 1, since the element is built in the hole formed by cutting the crown prosthesis and the lid is covered, the element moves in the hole, and the hole moves. It may hit the inner wall and break down.

  In the identification device described in Patent Document 2, when a flash memory is arranged between the dental crown and the shaved crown, it is necessary to remove the dental crown when reading information from the flash memory. In addition, when the tip is placed on the dental post, it is necessary to remove the contact tip from the dental pulp cavity of the tooth. Furthermore, when placing a tip on a dental implant or dental bone screw, this tip is a non-contact tip, so there is no need to take out the tip. The technique cannot be applied to dentures.

  In the plate denture described in Patent Document 3, resin is filled as a lid in the depression of the artificial tooth in which the transmitting element is stored. For example, the depression is formed in the artificial tooth by cutting, and the inner surface of the depression is formed. When cleaning, polishing, filling the transmitting element and filling the resin, the process is complicated. Moreover, when cutting the hollow for embedding a transmitting element, there exists a possibility that it may penetrate an artificial tooth accidentally.

  Therefore, the present invention provides an artificial tooth that can easily and accurately store an element storing information in an artificial tooth, and can ensure high reliability of the element even if the artificial tooth is used for a long time. It aims to provide a method.

  The method for manufacturing an artificial tooth according to the present invention includes: a first mold in which a first recess for molding a crown portion is formed; and a second mold in which a second recess for molding a tooth neck is formed. One of the first concave portion and the second concave portion is formed with a protrusion having a shape serving as an embedding hole for embedding an element in which information is stored and the information is read in a non-contact manner. The mold and the other mold are clamped, and the artificial tooth with a hole in which the hole for embedding is formed by the artificial tooth molding resin in the cavity formed by the first recess and the second recess. A step of molding, a step of storing the element in the artificial tooth with holes, a step of filling the hole for embedding with an artificial tooth molding resin, sealing the element, and molding an artificial tooth. It is characterized by including.

  According to the method for manufacturing an artificial tooth of the present invention, information can be read from an element in a non-contact manner, so that information can be read while the element is embedded in an artificial tooth. In addition, since a protrusion having a shape serving as a burying hole is formed in one of the first dent and the second dent, the depth of the burying hole can be adjusted to the element uniformly and accurately. Can be formed in different sizes.

  Instead of the one mold, the third mold in which the protrusion is removed from the shape of the one recess is clamped to the other mold, and the embedding hole is filled with artificial tooth molding resin. Then, it is desirable to seal the element and form an artificial tooth. By using the third mold as the mating mold of the first mold, the artificial tooth molding resin can be injected into the embedding hole, so that the element can be completely sealed.

  When the protrusion is formed in a plate shape in which the element is stored, the embedding hole can be formed thinner by the protrusion according to the plate-like element.

  When the one mold is performed with the second mold and the other mold is performed with the first mold, a hole for embedding is formed in the tooth neck portion. Since the tooth neck portion is buried in the denture base when placed in, the opening of the embedding hole can be closed by the denture base.

In the step of forming the artificial tooth with a hole, the first mold and the fourth mold that serves as a lid of the first recess are clamped, and the crown part is molded with an artificial tooth molding resin. And clamping the first mold and the second mold in a state where the crown portion is positioned in the first recess, and for artificial tooth molding in the cavity by the second recess It is desirable that the artificial tooth with a hole is formed by a step of forming a tooth neck portion on the crown portion in the first concave portion with a resin.
The crown part is previously formed by the first mold and the fourth mold, and then the tooth neck part in which the embedding hole is formed by the first mold and the second mold is the crown part. By adding to, a tooth neck portion in which a hole for embedding is accurately formed can be provided in the crown portion.

In the step of forming the crown portion, the artificial tooth molding resin in the step of molding the dental crown portion by molding the crown portion by using a dental crown molding resin as the artificial tooth molding resin. As described above, it is desirable to mold the tooth neck portion with a resin for molding a tooth neck.
By forming the crown part with a resin for molding a crown and molding the neck part with a resin for molding a neck, the crown part is made a resin harder than the neck part, or a resin having elasticity, It is possible to change the properties of the resin.

  If the dental crown molding resin and the dental neck molding resin are of different colors, it is easy to distinguish an artificial tooth having an embedded element from other artificial teeth.

  It is desirable to form the tooth neck by sequentially laminating with a plurality of molds having recesses that are sequentially expanded in the length direction of the protrusion. The tooth neck can be laminated and molded by a plurality of molds while changing the type of resin for molding the neck.

  It is desirable to change the color of the resin for molding the tooth neck for each layer when the neck portion is molded by sequentially stacking the plurality of molds. When the color of the tooth neck molding resin is changed for each stack, when the artificial tooth in which the element is embedded is distinguished from other artificial teeth, it can be displayed with a combination of the color of the tooth neck molding resin.

When filling the artificial hole molding resin into the embedding hole, after filling the artificial tooth molding resin sealing the element stored in the embedding hole as the sealing resin, It is desirable to fill the artificial tooth molding resin to be a lid with a color different from that of the sealing resin.
Artificial tooth molding resin that becomes a lid when dentists and dental technicians cut artificial teeth by making the resin for artificial tooth molding that becomes the lid of the embedding hole a color different from that of the sealing resin Since the sealing resin is exposed before it is cut too much to reach the element and destroy it, excessive cutting can be prevented.

  When an identification mark for identifying an artificial tooth in which the element is not stored is given to the artificial tooth, the artificial tooth in which the element is stored can be identified at a glance.

  According to the method for manufacturing an artificial tooth of the present invention, the depth of the embedding hole can be formed in a constant and accurate size suitable for the element, and the element is formed by using the artificial tooth molding resin. Since it can be completely sealed, the element storing the information can be easily and accurately stored in the artificial tooth, and even if the artificial tooth is used over a long period of time, high reliability of the element can be secured. it can.

It is a perspective view which shows the artificial tooth produced by the manufacturing method of the artificial tooth which concerns on Embodiment 1 of this invention. It is sectional drawing for demonstrating the 3rd metal mold | die from the 1st metal mold | die for manufacturing the artificial tooth shown in FIG. It is sectional drawing for demonstrating the process which clamps the 1st metal mold | die shown in FIG. 2, and a 2nd metal mold | die, and inject | pours resin for artificial tooth shaping | molding. It is sectional drawing of an artificial tooth with a hole. It is sectional drawing for demonstrating the process of storing an element in the artificial tooth with a hole shown in FIG. It is sectional drawing for demonstrating the process of sealing the element accommodated in the artificial tooth with a hole shown in FIG. It is sectional drawing for demonstrating the 3rd metal mold | die from the 1st metal mold | die by the manufacturing method of the artificial tooth concerning Embodiment 2 of this invention. It is sectional drawing for demonstrating the process of clamping the 1st metal mold | die and the 4th metal mold | die by the manufacturing method of the artificial tooth which concerns on Embodiment 3 of this invention. It is a figure which shows the process following FIG. 8, and is sectional drawing for demonstrating the process of clamping a 2nd metal mold | die to a 1st metal mold | die. It is a figure which shows the process following FIG. 9, and is sectional drawing for demonstrating the process of clamping a 3rd metal mold | die to a 1st metal mold | die. It is sectional drawing for demonstrating the process of clamping the 1st metal mold | die and the 5th metal mold | die by the manufacturing method of the artificial tooth concerning Embodiment 4 of this invention. It is a figure which shows the process following FIG. 11, and is sectional drawing for demonstrating the process of clamping a 6th metal mold | die to a 1st metal mold | die. It is a figure which shows the process following FIG. 12, and is sectional drawing for demonstrating the process of clamping a 7th metal mold | die to a 1st metal mold | die. It is a figure which shows the process following FIG. 13, and is sectional drawing for demonstrating the process of clamping an 8th metal mold | die to a 1st metal mold | die. It is sectional drawing for demonstrating the process which clamps the 1st metal mold | die and 3rd metal mold | die by the manufacturing method of the artificial tooth concerning Embodiment 5 of this invention, and inject | pours resin for artificial tooth shaping | molding. It is sectional drawing which shows the artificial tooth which concerns on Embodiment 6 of this invention. FIG. 17 is a cross-sectional view for explaining a process of injecting an identification resin by clamping the first mold and the second mold when manufacturing the artificial tooth shown in FIG. 16. It is a figure which shows the process following FIG. 17, and is sectional drawing for demonstrating the process of clamping a 3rd metal mold | die to a 1st metal mold | die.

(Embodiment 1)
A method for manufacturing an artificial tooth according to Embodiment 1 of the present invention will be described with reference to the drawings.
An artificial tooth 100 shown in FIG. 1 is formed by the first mold 10, the second mold 20, and the third mold 30 shown in FIG. 2.

  The first mold 10 is formed with a first recess 11 for molding the crown portion 110. The second mold 20 and the third mold 30 are formed with a second recess 21 for molding the tooth neck 120. A protrusion 22 is formed in the second recess 21 of the second mold 20. The second recess 21 of the third mold 30 has no protrusion 22 formed on the second mold 20 and is removed.

The protrusion 22 is formed in a shape that becomes an embedding hole for embedding the element 130 from which information is read without contact. In the present embodiment, the opening is formed in an elongated rectangular shape in accordance with the thin plate shape of the element 130.
The second mold 20 is filled with a bowl-shaped artificial tooth molding resin in the cavity CV, and when the first mold 10 and the second mold 20 are clamped, the first recess 11 and the second mold 20 A flow path 23 is formed for allowing excess artificial tooth molding resin overflowing from the cavity CV formed by the two recesses 21 to flow out.

  Resin for artificial tooth molding into the cavity CV formed by the first recess 11 and the second recess 21 at the position where the projection 22 of the second mold 20 is erected in the second recess 21 of the third mold 30. A flow path 31 for filling is formed.

  An operator forms the first recess 11 (the other recess) of the first mold 10 (the other mold) and the second recess 21 (the one mold) of the second mold 20 (the one mold) thus formed. The cavity CV formed by the one recess) is filled with artificial tooth molding resin, and the first mold 10 and the second mold 20 are clamped. By clamping the first mold 10 and the second mold 20, excess artificial tooth molding resin overflowing from the cavity CV flows out from the flow path 23 (see FIG. 3). Then, the operator opens the first mold 10 and the second mold 20. By doing so, the artificial tooth 101 with a hole as shown in FIG. 4 is shape | molded by cavity CV. In the artificial tooth 101 with a hole, an embedding hole 111 is formed at the position of the protruding portion 22 erected in the second recess 21 of the second mold 20.

Next, as shown in FIG. 5, the worker stores the element 130 in the embedding hole 111 formed in the artificial tooth 101 with a hole.
This element 130 is an information storage element from which information is read without contact. For example, the element 130 can be a non-contact type passive tag RFID tag. The element 130 stores identification information (ID information) for indirectly specifying an individual by being associated with personal information registered in the database. In addition, when the storage capacity of the element 130 is sufficient, in addition to the identification information for identifying an individual, a hospital that identifies the name, address, date of birth, sex, blood type, and dental clinic involved in treatment Personal information such as a name and a code identifying the hospital can be stored in the element 130. Further, when the storage capacity of the element 130 is sufficient, a family history, a medical history, a medication history, a social history, a family history, etc. can be stored. In particular, when the wearer suffers from dementia, if information about the family to be contacted is stored in the element 130, the identity of the wearer who is hesitant can be confirmed immediately, and the family can be contacted. , Contact the wearer immediately to obtain permission for treatment. The element 130 is irradiated with radio waves from an information reading device (not shown) to obtain an electromotive force, thereby transmitting various types of information stored in the element 130 to the information reading device to electrically read the information.

  Next, the operator fills the embedding hole 111 in which the element 130 is stored with the artificial tooth molding resin. In this operation, an operator may manually fill the embedding hole 111 of the artificial tooth with holes 101 with the resin for molding artificial teeth. In this case, it is desirable to use an artificial tooth molding resin with high fluidity so that the artificial tooth molding resin enters the entire embedding hole 111 in which the element 130 is stored.

The operator can also fill the channel embedding hole 111 with the artificial tooth molding resin using the third mold.
As shown in FIG. 6, the artificial tooth 100 is inserted into the second recess 21 of the third mold 30 with the crown 110 of the artificial tooth 101 with a hole fitted in the first recess 11 of the first mold 10. The tooth neck 120 is inserted. Then, the worker fills the cavity CV with the artificial tooth molding resin from the flow path 31 of the third mold 30. Since the flow path 31 is formed at a position where the protrusion 22 of the second mold 20 is erected (see FIG. 2), the artificial tooth molding resin is filled in the embedding hole 111.
The artificial tooth molding resin is filled in the embedding hole 111, whereby the element 130 stored in the embedding hole 111 is sealed, and the artificial tooth 100 shown in FIG. 1 is manufactured.

As described above, since the projecting portion 22 having the shape to become the embedding hole 111 is formed in the second recess 21 of the second mold 20, the depth of the embedding hole 111 is made constant and accurate. It can be formed in a size that suits. Further, by using the third mold 30 as the counterpart mold of the first mold 10, the embedding hole 111 can be filled with the resin for molding artificial teeth, so that the element 130 can be completely sealed. .
Therefore, the manufacturing method of the artificial tooth 100 according to the first embodiment can easily and accurately store the element 130 storing the information in the artificial tooth 100. Even if the artificial tooth 100 is used for a long time, High reliability for the element 130 can be ensured.

  Further, since the protrusion 22 is formed in a plate shape in which the element 130 is stored, the embedding hole 111 can be formed thinly by the protrusion 22 according to the plate-like element 130. Accordingly, a drill hole or the like forms a hole having a large cylindrical shape. However, in the artificial tooth 101 with a hole, the embedding hole 111 can be formed into a thin plate shape and the surface can be smoothly formed.

  In addition, the artificial tooth molding resin for molding the artificial tooth 101 with the holes by the first mold 10 and the second mold 20, and the sealing of the element 130 by the first mold 10 and the third mold 30. By using the same material as that for the artificial tooth molding resin when performing the process, the artificial tooth molding resin for sealing the element 130 can be solidified on the artificial tooth 101 with a hole without any boundary. Therefore, the artificial tooth 100 can seal the element 130 in a state where the artificial tooth molding resin filled in the embedding hole 111 is in close contact with the holed artificial tooth 101.

In addition, regarding the molding of the artificial tooth 100, by setting one mold as the second mold 20 and the other mold as the first mold 10, an embedding hole is formed in the tooth neck portion 120. When the artificial tooth 100 is placed on the denture base, the tooth neck 120 is buried in the denture base, so that the opening of the embedding hole 111 can be closed by the denture base.
Furthermore, since information can be read from the element 130 in a non-contact manner, information can be read while the element 130 is embedded in the artificial tooth 100.

  In Embodiment 1, since the bowl-shaped artificial tooth molding resin is used when molding the artificial tooth with holes 101, the cavity CV is previously filled with the bowl-shaped artificial tooth molding resin. The first mold 10 and the second mold 20 were clamped, and excess artificial tooth molding resin was allowed to flow out of the flow path 23. However, if the artificial tooth molding resin has low viscosity and high fluidity, after the first mold 10 and the second mold 20 are clamped, the artificial tooth molding resin is cavityd from the flow path 23. You may inject | pour into CV. Similarly, in the following embodiments, the artificial tooth molding resin may be filled toward the cavity from the flow path formed in the mold.

(Embodiment 2)
A method for manufacturing an artificial tooth according to Embodiment 2 of the present invention will be described with reference to the drawings. In the artificial tooth manufacturing method according to the second embodiment, an embedding hole for storing an element is formed in the crown portion.
As shown in FIG. 7, in the artificial tooth manufacturing method according to the second embodiment, the first mold 10a (one mold), the second mold 20a (the other mold), and the third mold Molded with the mold 30a.
The first mold 10a is provided with a protrusion 12 for forming a hole for embedding in the first recess 11 (one recess). Accordingly, the second concave portion 21 (the other concave portion) of the second mold 20a is not provided with the protruding portion 22 as shown in FIG. And the 3rd metal mold | die 30a is formed in the shape which removed the projection part 12 from the 1st metal mold | die 10a, and the flow path 13 for filling artificial tooth molding resin in the position in which the projection part 12 was formed. Is formed.

  As described above, since the first mold 10a, the second mold 20a, and the third mold 30a are formed, the first mold 10a and the second mold 20a form a hole for embedding in the crown portion. 1 is formed, the element 130 (see FIG. 1) is stored in the embedding hole formed in the artificial tooth with holes, and the third mold 30a is replaced with the first mold 10a. Thus, by sealing the element 130, an artificial tooth storing the element 130 can be manufactured as in the first embodiment.

(Embodiment 3)
A method for manufacturing an artificial tooth according to Embodiment 3 of the present invention will be described with reference to the drawings. In the method for manufacturing an artificial tooth according to the third embodiment, first, a dental crown is formed, and then an artificial tooth is produced by adding a tooth neck to the dental crown. 8 to 10, the same components as those in FIG. 2 are denoted by the same reference numerals and description thereof is omitted.

As shown in FIG. 8, in the artificial tooth manufacturing method according to the third embodiment, first, an operator is formed by the first mold 10 (one mold) and the fourth mold 40. The cavity CV is filled with a bowl-shaped artificial tooth molding resin, and the first mold 10 and the fourth mold 40 are clamped, so that the excess surplus artificial tooth molding resin is transferred to the fourth mold 40. The crown part 110 (refer FIG. 1) is shape | molded.
Since the recessed part is not formed in the 4th metal mold | die 40, when the 1st metal mold | die 10 and the 4th metal mold | die 40 are clamped, the 1st recessed part 11 of the 1st metal mold | die 10 turns into cavity CV.

  At this time, a dental crown molding resin is injected into the cavity CV as an artificial dental molding resin. As the crown molding resin for molding the crown portion 110, a resin harder than the tooth neck portion 120 (see FIG. 1) and excellent in wear resistance can be used.

Next, as shown in FIG. 9, the operator places the artificial tooth molding resin in the cavity CV by the second recess 21 in a state where the crown portion 110 is positioned in the first recess 11 of the first mold 10. After filling, the first mold 10 and the second mold 20 are clamped. By clamping the first mold 10 and the second mold 20, the tooth neck 120 is integrally formed with the crown 110 in the first recess 11, and excess artificial teeth overflowing from the cavity CV. Molding resin flows out of the flow path 23.
At this time, a dental neck molding resin is injected into the cavity CV as an artificial tooth molding resin. The dental neck molding resin for molding the dental neck portion 120 can be brighter or darker than the crown molding resin for molding the dental crown portion 110 (see FIG. 1).

When the artificial tooth 101 with a hole (see FIG. 4) is formed by the first mold 10 and the second mold 20, the operator inserts the element 130 (into the embedding hole 111 formed in the artificial tooth 101 with the hole. (See FIG. 5).
When the element 130 is stored in the embedding hole 111 formed by the protruding portion 22 of the second mold 20, the operator can move the tooth neck from the flow path 31 of the third mold 30 as shown in FIG. 10. A molding resin is injected to seal the element 130 stored in the embedding hole 111. Even in this case, it is desirable to use the same material for the tooth neck molding resin for molding the tooth neck portion 120 of the artificial tooth 101 with a hole and the tooth neck molding resin filled in the embedding hole 111.

  By separately molding the crown portion 110 and the tooth neck portion 120 using a crown molding resin and a tooth neck molding resin, respectively, the crown portion 110 and the tooth neck portion 120 are respectively formed. Any suitable resin can be used. Moreover, the dental crown part 110 and the dental neck part 120 are formed in different colors by using artificial tooth molding resins colored in different colors for the dental crown molding resin and the dental neck molding resin. Therefore, it is easy to distinguish the artificial tooth 100 in which the element 130 is embedded from other artificial teeth.

  In the second embodiment, the abutting portion between the first mold 10 and the fourth die 40 is formed in a straight line. However, the corrugated portion 110 and the tooth neck portion are provided with irregularities in the abutting portion. The degree of close contact with 120 may be improved.

(Embodiment 4)
A method for manufacturing an artificial tooth according to Embodiment 4 of the present invention will be described with reference to the drawings. In the artificial tooth manufacturing method according to the fourth embodiment, as in the third embodiment, first, a dental crown is formed, and then an artificial tooth is produced by adding a tooth neck to the crown. However, the tooth neck is formed in a plurality of stages. 11 to 13, the same components as those in FIG. 2 are denoted by the same reference numerals and description thereof is omitted.

First, as shown in FIG. 8, the worker molds the crown portion 110 using the first mold 10 and the fourth mold 40.
Next, the operator sequentially stacks and forms the tooth neck portion 120 with a plurality of molds having recessed portions that are sequentially expanded in the length direction of the protruding portion 22 (see FIG. 2).
For example, in FIGS. 11 to 14, the second concave portion 21 by the second mold 20 is formed by sequentially expanding the range by four molds (fifth mold 50 to eighth mold 80).

  As shown in FIG. 11, a fifth recess 51 is formed in the fifth mold 50. The fifth mold 50 is formed with a flow path 52 for allowing the tooth neck molding resin to flow out from the fifth recess 51. In the fifth recess 51, the tip of the protrusion 22 (see FIG. 2) protrudes as a protrusion 22a.

  As shown in FIG. 12, a sixth recess 61 is formed in the sixth mold 60. Further, the sixth mold 60 is provided with a flow path 62 for allowing the tooth neck molding resin to flow out from the sixth recess 61. In the sixth recess 61, a protrusion having a length that combines the tip portion and the intermediate portion of the protrusion 22 (see FIG. 2) protrudes as a protrusion 22b.

  As shown in FIG. 13, a seventh recess 71 is formed in the seventh mold 70. Further, the seventh mold 70 is formed with a flow path 72 for allowing the tooth neck molding resin to flow out from the seventh recess 71. The same thing as the projection part 22 (refer FIG. 2) protrudes in the 7th recessed part 71 as the projection part 22c.

  As shown in FIG. 14, an eighth recess 81 is formed in the eighth mold 80. The eighth mold 80 is formed with a flow channel 82 for allowing the tooth neck molding resin to flow out from the eighth recess 81. The same thing as the projection part 22 (refer FIG. 2) protrudes in the 8th recessed part 81 as the projection part 22c. The eighth recess 81 of the eighth mold 80 has the same shape as the second recess 21 of the second mold 20, but the position of the flow path 82 is different from the flow path 23. This is because the position of the flow path 23 is blocked by the tooth neck formed by the fifth mold 50 shown in FIG. 11 to the seventh mold 70 shown in FIG. 13. Therefore, the flow path 82 is located at the tip of the tooth neck 120 (see FIG. 4) formed by the eighth recess 81.

Next, a method for forming a tooth neck by using the fifth mold 50 to the eighth mold 80 will be described.
As shown in FIG. 11, the operator fills the fifth recess 51 of the fifth mold 50 with a resin for molding a neck and covers the crown 110 formed by the first mold 10. The first tooth neck 120a on the side of the crown portion 110 is molded by clamping the mold to the first mold 10 and causing the excess tooth neck molding resin overflowing from the fifth recess 51 to flow out of the flow path 52. Is done.
Next, as shown in FIG. 12, the operator inserts the sixth mold 60 in which the sixth concave portion 61 is filled with the resin for forming the neck and neck into the first mold 10 instead of the fifth mold 50. The second tooth neck portion 120b (see FIG. 13) is stacked on the first tooth neck portion 120a by tightening and allowing excess resin for molding the tooth neck overflowing from the sixth recess 61 to flow out from the flow path 62. .

Next, as shown in FIG. 13, the operator inserts the seventh mold 70 in which the seventh recess 71 is filled with the resin for molding the neck and neck into the first mold 10 instead of the sixth mold 60. The third tooth neck portion 120c (see FIG. 14) is laminated on the second tooth neck portion 120b by tightening and allowing the excess resin for molding the tooth neck overflowing from the seventh recess 71 to flow out of the flow path 72. .
Next, as shown in FIG. 14, the operator inserts the eighth mold 80 in which the eighth recess 81 is filled with the resin for molding the neck into the first mold 10 instead of the seventh mold 70. Fastening and draining excess tooth neck molding resin overflowing from the eighth recess 81 from the flow path 82, a fourth tooth neck (not shown) is laminated on the third tooth neck 120c, The artificial tooth 101 with a hole shown in FIG. 4 is molded. Since the subsequent steps are the same as those in Embodiment 1, they are omitted.

  In this way, the tooth neck 120 is formed stepwise by the recessed portions (the fifth recessed portion 51 to the eighth recessed portion 81) sequentially expanded from the plurality of molds (the fifth mold 50 to the eighth mold 80). Since it can be laminated and molded while changing the type of resin for molding the neck and neck, the brightness is gradually lowered from the first tooth neck 120a toward the fourth tooth neck according to the natural tooth. Can do. In addition, the color of the cervical molding resin is changed for each stack, and the combination of the color of the cervical molding resin is used to display the artificial tooth in which the element 130 is embedded and other artificial teeth. Can do.

  In the fourth embodiment, the tooth neck 120 is formed by four molds (fifth metal mold 50 to eighth metal 80) in four stages, but two tooth necks 120 or Two or three layers may be laminated by three molds, or may be laminated by five or more molds.

(Embodiment 5)
A method for manufacturing an artificial tooth according to Embodiment 5 of the present invention will be described with reference to the drawings. In the artificial tooth manufacturing method according to the fifth embodiment, the artificial tooth molding resin is color-coded and injected when the artificial tooth molding resin (tooth neck molding resin) is injected into the embedding hole for storing the element. To do.
In FIG. 15, the same components as those in FIG.

An artificial tooth 101 with a hole storing the element 130 shown in FIG. 15 in the embedding hole 111 is clamped by the first mold 10 and the third mold 30.
When the artificial tooth molding resin (tooth neck molding resin) is injected from the flow path 31 of the third mold 30, first, the tooth neck molding resin that covers the element 130 is used as the sealing resin 112. inject. At this time, for example, red, blue, green, black, or the like is used as the tooth neck molding resin (sealing resin 112).

Next, an artificial tooth molding resin (tooth neck molding resin) to be a lid of the embedding hole 111 is injected to completely cover the element 130. At this time, the tooth neck molding resin serving as a lid is used as the cover resin 113, and is injected in a color different from the color of the sealing resin 112. The cover resin 113 can be, for example, the same color as natural teeth.
By making the cover resin 113 a color different from that of the sealing resin 112, when the dentist or dental technician cuts the artificial tooth, the cover resin 113 is cut too much to reach the element 130. Since the sealing resin 112 is exposed before being destroyed, excessive cutting can be prevented.

  In the fifth embodiment, the artificial tooth 100 in the first embodiment has been described as an example, but the second embodiment (see FIG. 7), the third embodiment (see FIG. 10), and the fourth embodiment ( Also in FIG. 14), when the artificial tooth molding resin is injected into the embedding hole storing the element, the color can be changed as in the fifth embodiment.

(Embodiment 6)
A method for manufacturing an artificial tooth according to Embodiment 6 of the present invention will be described with reference to the drawings. In the artificial tooth manufacturing method according to the sixth embodiment, an identification mark for identifying an artificial tooth that does not contain an element is assigned to the artificial tooth that contains the element.
In FIG. 16, the same components as those in FIG. 5, FIG. 17 in FIG. 3, and FIG. 18 in FIG.

As shown in FIG. 16, an identification mark 102 indicating that the element 130 is stored is formed on the artificial tooth 100a.
The identification mark 102 is formed on the lingual side of the artificial tooth 101a with a hole and at a position exposed from the floor when it is made a denture.
The identification mark 102 is obtained by injecting an identification resin 102b having a different color from the resin for molding an artificial tooth obtained by molding the artificial tooth 101 with a hole into a recess 102a formed on the artificial tooth 101a with a hole.
When the artificial tooth 101a with a hole is formed in the same color as the natural tooth, the identification resin 102b can be, for example, red, blue, green, black, or the like.
Thus, by providing the identification mark 102 to the artificial tooth 100a, a dentist or dental technician can easily make an artificial tooth in which the element 130 is stored and an artificial tooth in which the element 130 is not stored. Can be identified.

  As shown in FIG. 17, the recess 102 a has a projection 22 as a first projection, and a second mold 20 b in which a rod-like second projection 24 is projected into the second recess 21 together with the first projection. , The recessed portion 102a can be formed in the artificial tooth 101a with a hole together with the embedding hole 111.

When the identification resin 102b is injected into the recess 102a, the artificial tooth 101a with a hole is clamped by the first mold 10 and the third mold 30b.
In the third mold 30b, a flow path 31 connected to the concave portion 102a of the artificial tooth 101a with a hole is formed. The identification resin 102b is injected from the flow path 31. By doing so, the identification mark 102 can be formed in the artificial tooth 101a with a hole.

In FIG. 17 and FIG. 18, the concave portion 102a is formed by the second die 20b and the third die 30b, and the identification resin 102b is injected into the concave portion 102a. After forming the recess by cutting with a drill or the like, the identification resin may be hung or filled by filling.
In the fifth embodiment, the identification mark 102 is formed at a position exposed from the denture floor. However, if the identification mark 102 is seen through the floor, the identification mark 102 is hidden at the floor. It may be formed.

  The method for producing an artificial tooth according to the present invention is suitable for an artificial tooth used for a base denture such as a complete denture or a partial denture.

DESCRIPTION OF SYMBOLS 10,10a 1st metal mold | die 11 1st recessed part 12 Projection part 13 Flow path 20,20a, 20b 2nd metal mold | die 21 2nd recessed part 22,22a, 22b, 22c Projection part 23 Flow path 24 2nd projection part 30,30a 30b Third mold 31 Flow path 32 Second flow path 40 Fourth mold 41 Flow path 50 Fifth mold 51 Fifth recess 52 Flow path 60 Sixth mold 61 Sixth recess 62 Flow path 70 Seventh mold Mold 71 Seventh concave portion 72 Flow path 80 Eighth mold 81 Eighth concave portion 82 Flow path 22a-22c Protrusion part 100, 100a Artificial tooth 101, 101a Artificial tooth with hole 102 Identification mark 102a Concave part 102b Identification resin 110 Crown part 111 Embedding hole 112 Sealing resin 120 Tooth neck 120a First tooth neck 120b Second tooth neck 120c Third tooth neck 130 Element CV Cavity

Claims (10)

Of the first mold in which the first recess for forming the crown part is formed and the second mold in which the second recess for forming the tooth neck part is formed, the first recess or the second recess One mold in which a protrusion having a shape serving as an embedding hole for embedding an element in which information is stored and the information is read in a non-contact manner is formed in one of the recesses, and the other mold And molding the artificial tooth with a hole in which the embedding hole is formed, using an artificial tooth molding resin in the cavity formed by the first recess and the second recess,
Storing the element in the artificial tooth with a hole;
Instead of the one mold, the third mold in which the protrusion is removed from the shape of the one recess is clamped to the other mold, and the embedding hole is filled with artificial tooth molding resin. And the manufacturing method of an artificial tooth including the process of sealing the said element and shape | molding an artificial tooth. The protrusions process for producing an artificial tooth according to claim 1 Symbol mounting said element is formed by the plate-like storage. Performing the one mold with the second mold;
The artificial tooth manufacturing method according to claim 1 or 2, wherein the other mold is performed by the first mold. In the step of forming the artificial tooth with a hole,
Clamping the first mold and a fourth mold serving as a lid of the first recess, and molding a crown portion with an artificial tooth molding resin;
With the crown portion positioned in the first recess, the first mold and the second mold are clamped, and the artificial tooth molding resin in the cavity formed by the second recess, A step of forming a tooth neck portion on the crown portion in the first recess,
The method for manufacturing an artificial tooth according to claim 3 , wherein the artificial tooth with a hole is molded. In the step of molding the crown part, as the artificial tooth molding resin, the crown part is molded with a crown molding resin,
The method of manufacturing an artificial tooth according to claim 4 , wherein in the step of molding the tooth neck, the tooth neck is molded from a tooth neck molding resin as the artificial tooth molding resin. The method for manufacturing an artificial tooth according to claim 5 , wherein the crown molding resin and the tooth neck molding resin have different colors. In the step of forming the tooth neck,
The artificial tooth according to any one of claims 4 to 6 , wherein the tooth neck is formed by sequentially laminating with a plurality of molds having recesses that are sequentially expanded toward the length of the protrusion. Teeth manufacturing method. The method for manufacturing an artificial tooth according to claim 7 , wherein when forming a cervical part by sequentially laminating with the plurality of molds, a color of a resin for molding a cervix is changed for each lamination. When filling the artificial hole molding resin into the embedding hole,
After filling the artificial tooth molding resin that seals the element stored in the embedding hole as a sealing resin, the artificial tooth molding resin that becomes the lid of the embedding hole is replaced with the sealing resin. The method for manufacturing an artificial tooth according to any one of claims 1 to 8 , wherein the filling is performed by changing the color. The artificial tooth, manufacturing an artificial tooth according to any one of claims 1 9 for imparting an identification label for identifying an artificial tooth the device is not stored.

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