JP2019208643A - Artificial tooth and artificial tooth set as well as plate denture - Google Patents

Abstract

To provide an artificial tooth capable of being reliably arranged in a precise position, and an artificial tooth set and a plate denture.SOLUTION: An artificial tooth 10 is provided in which identification information 13 showing the position of a tooth in a dental arch is imparted to a basal surface 11 buried in a denture base. This identification information 13 can be made a dental formula number by any one of the FDI system, universal system, zsigmondy-Palmer system or MICAP system. An arrangement position of the artificial tooth 10 can be identified, and therefore the artificial tooth can be arranged accurately without misunderstanding the artificial tooth.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an artificial tooth, an artificial tooth set, and a denture that serve as a substitute for a lost tooth.

Plated dentures may be used because it is difficult to chew food when teeth are lost. As for this denture, an artificial tooth is arrange | positioned at a denture base.
Artificial teeth are prepared for anterior teeth and molars, and corresponding artificial teeth are used according to the position of the lost tooth. About such an artificial tooth, what was described in patent document 1 is known.

  Patent Document 1 is a set of at least two adjacent artificial teeth, having a columnar convex portion on the adjacent surface of the artificial tooth, and having a columnar concave portion on the adjacent surface of the other artificial tooth. An artificial tooth set is described in which a convex portion of an artificial tooth is inserted into a concave portion of an adjacent artificial tooth.

JP 2016-112249 A

In the artificial tooth set described in Patent Document 1, since the convex portion and the concave portion are formed on the distal side and the mesial side, adjacent artificial teeth can be easily arranged, and a denture base is manufactured. When placed on a wax bank, it is easy to distinguish the tongue side or palate side from the cheek side.
However, even if the difference between the front teeth and the molars is clear, the artificial teeth have the first and second molars, the first and second premolars, the left and right molars, the premolars, the middle It is difficult to distinguish between incisors and side incisors, and misunderstandings may occur in various combinations. Then, there is a possibility that a dentist or a dental technician mistakenly arranges artificial teeth at different positions to produce a denture.

  Therefore, an object of the present invention is to provide an artificial tooth, an artificial tooth set, and a denture that can be reliably disposed at an accurate position.

  The artificial tooth of the present invention is characterized in that identification information indicating the position of the tooth in the dental arch is given.

  Since identification information indicating the position of the tooth in the dental arch is given, if the dentist or dental technician sees the identification information, the position of the tooth in the dental arch can be grasped.

  If the identification information is formed on the base surface buried in the denture base, the identification information is hidden in the denture base when the denture base is used, so the identification information cannot be recognized from the wearer. It can be in a natural state that is not different from the denture.

  If the identification information includes a dental formula number indicating the position of the tooth in the dental arch, a dental arch or dental technician who normally uses the dental formula number can see the dental arch only by visually recognizing the identification information. The position of the tooth in can be recognized immediately and easily.

  When the dental formula number is arranged so that the upper side of the dental formula number faces the lip side, the palate side, the lingual side, the cheek side, the distal side or the mesial side, the teeth of the dental arch Not only the position but also the direction of the artificial teeth can be easily grasped.

  If the identification information is formed by a concave portion due to a groove or a convex portion due to a bulge, the contact area with the denture base increases, so that the connection strength can be enhanced.

  The tooth number may be represented by any of the FDI method, universal method, Zsigmondy-Palmer method, or MICAP method.

  When the identification information includes character information for identifying the type of tooth, the type of artificial tooth can be easily identified simply by looking at the character information.

  If a concave portion that can identify the type of tooth by the shape of the opening or a convex portion that can identify the type of artificial tooth by the shape of the top surface is formed on the base surface, the opening of the concave portion or the convex portion The type of artificial tooth can be easily identified by the shape of the top surface.

The artificial tooth set of the present invention includes a plurality of artificial teeth of the present invention.
According to the artificial tooth set of the present invention, even if there are a plurality of artificial teeth of the present invention, the position of each tooth can be accurately grasped.

  The denture of the present invention can be provided with the artificial tooth of the present invention and a denture base that supports the artificial tooth.

  According to the present invention, if the dentist or dental technician sees the identification information, the position of the tooth in the dental arch can be grasped, so that the artificial tooth of the present invention can be surely placed at an accurate position. It is.

It is a figure which shows the central incisor which is an artificial tooth concerning Embodiment 1 of this invention, (A) is the figure seen from the palate side, (B) is the figure seen from the lip side. It is a figure for demonstrating the dental formula number which is the identification information of the artificial tooth shown in FIG. 1, (A) is a figure for demonstrating a FDI system, (B) is a figure for demonstrating a universal system, ( (C) is a diagram for explaining the Zsigmondy-Palmer system, and (D) is a diagram for explaining the MICAP system. It is a figure for demonstrating that the dental formula number shown in FIG. 1 shows a direction. It is a figure which shows the 1st molar which is an artificial tooth concerning Embodiment 1 of this invention, (A) is the figure seen from the lingual side, (B) is the figure seen from the centrifugal side. It is a figure for demonstrating that the dental formula number shown in FIG. 4 shows a direction. It is a figure for demonstrating the process of manufacturing a base denture using the artificial tooth shown in FIG. 1, (A) is a figure which shows a model, (B) is the occlusal floor in which the occlusal levee was formed in the foundation floor. The figure to show, (C) is a figure of the state by which the artificial tooth is arrange | positioned, (D) is a figure which shows a plate denture. It is the figure which looked at the central incisor which is an artificial tooth which concerns on Embodiment 2 of this invention from the palate side, (A) made the opening part of a recessed part into the triangle shape, (B) is the opening part of a recessed part. It is the figure made into square shape. It is the figure which looked at the central incisor which is an artificial tooth which concerns on Embodiment 3 of this invention from the palate side, and is a figure for demonstrating the identification information containing the identification code which shows the kind of tooth | gear. It is the figure seen from the palate side which shows the central incisor which is an artificial tooth concerning Embodiment 4 of this invention.

[Embodiment 1]
An artificial tooth, an artificial tooth set, and a base denture according to Embodiment 1 of the present invention will be described with reference to the drawings.
(Front teeth)
The artificial tooth 10 shown in FIG. 1 is a central incisor on the left side of the upper jaw, which is an example of an anterior tooth portion. A concave portion 12 having a circular opening is formed on the base surface 11 buried in the denture base of the artificial tooth 10. Further, visible identification information 13 indicating the position of the tooth in the dental arch is given to the base surface 11. In the present embodiment, the identification information 13 is a tooth number N1 indicating the position of the tooth in the dental arch.

The tooth number N1 is formed by a concave portion due to a groove or a convex portion due to a protrusion. When the tooth number N1 is given by the recess, the tooth number that is convex on the surface corresponding to the base surface 11 of the mold when engraving, cutting by laser irradiation, or resin molding the artificial tooth 10 is used. By forming, the base number 11 can be given a tooth number N1 that is a recess.
Further, when the tooth formula number N1 is given by the convex portion, the tooth base number 11 is formed on the surface corresponding to the base surface 11 of the mold when the artificial tooth 10 is resin-molded. The tooth number N1 as a convex portion can be given.
Further, since the tooth number N1 is used only when the artificial tooth 10 is disposed, it may be printed, transferred, or the like.

As shown in FIG. 2, the tooth number N1 can be expressed in any of the FDI method, the Universal method, the Zsigmondy-Palmer method, or the MICAP method.
In the example of the tooth number N1 shown in FIG. 1, it is based on the FDI method, and is “21” because it is the central incisor on the left side of the upper jaw.

Since the artificial tooth 10 is the left central incisor of the upper jaw, the dental formula number N1 is “9” when represented by the Universal system, and “9” when the Zsigmondy-Palmer system is employed.
" In the case of the MICAP method, “#I ¹ ” is set.

The tooth number is arranged such that the upper side of the tooth number is directed to either the lip side, the palate side, the tongue side, the cheek side, the distal side, or the mesial side.
In the example shown in FIG. 3, since the upper side (lower side in FIG. 3) of the number “21” indicating the tooth number N1 faces the lip side, the lower side of the number “21” of the tooth number N1 is the palate. Become the side. Therefore, the right side in FIG. 3 is the distal side and the left side is the mesial side.

(Molar part)
Next, an artificial tooth located on the first molar on the left side of the lower jaw, which is an example of a molar portion, will be described.
As in the artificial tooth 10 shown in FIG. 1, the artificial tooth 20 shown in FIG. 4 is formed with a concave portion 22 having a circular opening on the base surface 21 buried in the denture base. Further, the base surface 21 is provided with a dental formula number N2 that becomes visible identification information 13 indicating the position of the tooth in the dental arch.
The tooth number N2 can be assigned in the same manner as the tooth number N1 shown in FIG.
The tooth number N2 is based on the FDI method and is “36” because it is the first molar on the left side of the lower jaw.
In the example shown in FIG. 5, since the upper side (lower side in FIG. 3) of the numeral “36” indicating the dental formula number N2 faces the lip side, the lower side of the dental formula number N2 is the lingual side. Accordingly, the right side in FIG. 5 is the mesial side and the left side is the centrifugal side.

(Manufacture of dentures)
The artificial tooth 10 shown in FIG. 1 and the artificial tooth 20 shown in FIG. 4 can be used as a denture by a normal method using these.
For example, when a dentist and a dental technician produce a maxillary denture, first, the dentist obtains an impression of a lost tooth and creates a model M (see FIG. 6A). ). Next, a dental technician forms a base floor made of resin from this model, and an occlusal levee 32 formed of paraffin wax is placed on the base floor 31 to produce the occlusal floor 30 (FIG. 6B). reference).

Then, the dentist causes the patient to wear the occlusal floor 30, melt the occlusal levee 32, cause the patient to occlude, and the occlusal ridge 32 has an occlusal plane, midline, occlusal high diameter, and artificial tooth arrangement position. Record the occlusal state.
When the occlusal state is recorded on the occlusal bank 32, a dental technician cuts the occlusal bank 32 or melts the occlusal bank 32 based on this record, removes excess paraffin wax, and imitates the teeth. An artificial tooth 10 for the central incisor and other artificial teeth for the upper jaw are arranged (see FIG. 6C).

At this time, the artificial tooth 10 and other artificial teeth corresponding to the lost tooth are selected from the artificial tooth set in which a plurality of artificial teeth corresponding to each position of the dental arch are arranged, as shown in FIG. By taking out while confirming the formula number N1 and placing it on the occlusal levee, the artificial tooth 10 can be placed without being mistaken for artificial teeth at other positions.
When the artificial tooth 10 is disposed on the foundation floor 31, the basal plane 11 of the artificial tooth 10 is buried in the occlusal bank 32.

Next, the foundation floor on which the artificial teeth 10 are arranged on the occlusal levee is buried in gypsum filled in the flask frame. When the gypsum solidifies, the dental technician uses the gypsum as a mold to heat the occlusal levee and the foundation floor to remove the wax, and instead fills the resin. When the resin is solidified and the mold is opened, the plate denture 40 shown in FIG. 6D is completed.
The resin instead of the occlusal levee and the foundation floor is solidified to form a denture base 41, and the base surface 11 of the artificial tooth 10 is buried and molded in a state of being firmly held.

Since the artificial teeth 10 and 20 are configured as described above, if the dentist or dental technician sees the identification information 13 (tooth number N1, N2) “21” and “36”, the artificial tooth 10 , 20 can be specified. Therefore, it can be easily grasped that the artificial tooth 10 is the left central incisor of the upper jaw and the artificial tooth 20 is the first molar on the left side of the lower jaw, so that the artificial teeth 10 and 20 are surely placed at the correct positions. It is possible to arrange.
6 (A) to 6 (D), the upper denture has been described as an example. However, a mandible denture can also be produced by using the artificial tooth 20 in the same manner. .

  Since the dental formula numbers N1 and N2 are formed on the basal plane buried in the denture base, the dental formula numbers N1 and N2 are hidden when the denture base is used. Cannot be recognized. Therefore, it can be set as a natural denture without changing with the conventional denture.

Since the tooth numbers N1 and N2 are formed by concave portions by grooves or convex portions by protrusions, the contact area with the denture base is increased and the mechanical fitting force is improved, so that the connection strength can be increased. it can.
Further, since the recesses 12 and 22 are formed on the basal planes 11 and 21 together with the tooth numbers N1 and N2, the mechanical fitting force is improved similarly to the tooth numbers N1 and N2. , 20 can be firmly connected to the denture base.

  The dental formula numbers N1 and N2 are the dental formula numbers indicating the positions of the teeth in the dental arch. Since the FDI method, universal method, Zsigmondy-Palmer method or MICAP method are used, the dental formula number is usually used. If it is a dentist and a dental technician to use, the position of the tooth in a dental arch can be recognized immediately and easily.

  Since the upper side of the dental formula number N1 and the dental formula number N2 faces the lips, not only the position of the teeth in the dental arch, but also the orientation of the lips, the palate side, the lingual side, the distal side, the mesial side Until you can easily grasp the direction.

  In the present embodiment, the identification information 13 shown in FIGS. 1 and 4 is formed on the basal planes 11 and 21, but may be formed on the palate side, the lingual side, or the side of the cheek side. When the identification information is given to the side surface, the side surface on the palate side or the lingual side is desirable because it is easily visible from the outside when the denture is mounted in the oral cavity. If the identification information 13 is formed by a concave or convex portion even on the side of the palate or tongue, the identification information will be worsened because the tooth texture becomes worse and plaque or the like tends to adhere to the concave or convex portion. 13 is desirably applied to the base surfaces 11 and 21.

[Embodiment 2]
An artificial tooth according to Embodiment 2 of the present invention will be described with reference to the drawings.
In FIG. 7, the same components as those in FIG.
In the artificial tooth according to the second embodiment, a concave portion that can identify the type of tooth by the shape of the opening or a convex portion that can be identified by the shape of the top surface is formed on the base surface.
Here, the tooth type refers to artificial teeth having different materials, sizes, colors, and the like.

  In the artificial tooth 10 shown in FIG. 1 (A) and the artificial tooth 20 shown in FIG. 4 (A), the recesses 12 and 22 have circular openings. However, in the present embodiment, as shown in FIG. 7 (A), the opening of the recess 12a formed on the base surface 11 of the artificial tooth 10A that is the left central incisor of the upper jaw has a triangular shape, As shown in FIG. 7 (B), the opening of the recess 12b in the artificial tooth 10B can be formed into a square shape. Furthermore, the opening of the recess can be a polygonal shape that is a pentagon or more.

  For example, if the opening of the recess 12 as shown in FIG. 1A is circular, the artificial tooth 10 is a resin tooth, and the opening of the recess 12a as shown in FIG. If it is triangular, it indicates that the artificial tooth 10A is a hard resin tooth, and if the opening of the recess 12b as shown in FIG. 7B is a square shape, it indicates that the artificial tooth 10B is porcelain. Can show.

Thus, the material of the artificial tooth can be identified by the shape of the opening.
Further, by making the shape of the opening correspond to the size and color of the artificial tooth, the size and color of the artificial tooth can be identified in the same manner as when the material is identified.
Even when a convex portion is used instead of the concave portion, the material, size, color, and the like can be identified by the shape of the top surface of the convex portion.

  As described above, in the artificial teeth 10A and 10B according to the second embodiment, the recesses 12a and 12b that can distinguish the types of teeth by the shape of the opening, or the protrusions that can be distinguished by the shape of the top surface, Since it is formed on the base surface 11, the type of artificial tooth can be easily grasped from the appearance.

[Embodiment 3]
An artificial tooth according to Embodiment 2 of the present invention will be described with reference to the drawings.
In FIG. 8, the same components as those in FIG.
As shown in FIG. 8, in the artificial tooth 10C according to the third embodiment, the identification information 13C includes not only the tooth number N1 but also an identification code N3 that is character information for identifying the tooth type. ing.

  In the present embodiment, the identification code is a two-digit alphabet character. For example, when the identification information 13C is “AX21”, “21” is the same as the artificial tooth 10 shown in FIG. It shows that it is an incisor. "A" identifies the material and indicates that it is a resin tooth. “X” identifies the size, and indicates, for example, the largest size among the types of sizes X, L, M, and S.

As described above, the identification information 13 </ b> C includes not only the tooth number N <b> 1 but also the identification code N <b> 3, so that the type of artificial tooth can be easily grasped from the appearance. Further, since the identification code N3 is character information, many types of artificial teeth can be expressed by combining characters.
Furthermore, in the artificial tooth 10C, since the identification code N3 is formed by a concave portion or a convex portion, the number of characters is larger than that of the artificial tooth 10 (see FIG. 1A) on which the dental formula number N1 is formed. Can be connected to the floor.

[Embodiment 4]
An artificial tooth according to Embodiment 4 of the present invention will be described with reference to the drawings.
In FIG. 9, the same components as those in FIG.
In the artificial tooth 10D according to the fourth embodiment shown in FIG. 9, not only the identification information 13 (dental formula number N1) is given, but also the transmitting element C that stores the identification information and can read the radio signal. Embedded and built-in.

  The transmitting element C can be, for example, a non-contact passive tag type RFID tag. In addition to information indicating the position of the tooth in the dental arch, the transmitting element C can also store information regarding the type of artificial tooth such as color, shape, size (size), and the like.

Since the transmitting element C is embedded in the artificial tooth 10D as described above, the identification information and the information on the type of the artificial tooth can be read from the transmitting element C in a non-contact manner only by holding the reading device over the artificial tooth 10D. Can do.
Therefore, since the type of the artificial tooth can be confirmed based on reliable information, instead of judging the type of the artificial tooth only by appearance, it is possible to prevent mistakes such as mistakes.

  In addition, although the identification information 13 (dental formula number N1, N2) and 13C (dental formula number N1) of the artificial teeth 10, 20, 10A, 10B, 10C, and 10D according to Embodiments 1 to 4 are used as the dental formula number. If the position of the tooth in the dental arch can be specified, it can be optical reading information such as a symbol, a plane figure or a three-dimensional figure, and a bar code in addition to characters. Alternatively, only the basal planes 11 and 21 may be colored, a color may be given as identification information, and a tooth position may be specified by the type of color. Since only the basal planes 11 and 21 are colored, when the denture base 40 is used, it is hidden in the denture base 41 (see FIG. 6), so that the appearance is a natural state that is not different from the conventional denture base. Can do.

Further, in the artificial teeth 10A and 10B according to the second embodiment, the tooth type is specified by the concave portion and the convex portion, and in the artificial tooth 10C according to the third embodiment, the tooth type is specified by the identification code N3. These may be combined.
Further, the artificial teeth 10, 20, 10A, 10B, 10C, and 10D are permanent teeth, but may be milk teeth. In this case, identification information (dental formula number) corresponding to the position of the milk tooth is given.

  INDUSTRIAL APPLICABILITY The present invention is suitable for artificial teeth and artificial tooth sets that serve as substitutes for lost teeth, and dentures such as complete dentures and partial dentures using these.

10, 20, 10A, 10B, 10C, 10D Artificial teeth 11, 21 Base surface 12, 22, 12a, 12b Recess 13, 13C Identification information N1, N2 Tooth type number N3 Identification code M Model C Transmitting element 30 Occlusal floor 31 Basic Floor 32 Occlusal dyke 40 Plated denture 41 Denture base

Claims (11)

  An artificial tooth to which identification information indicating the position of a tooth in the dental arch is given.   The artificial tooth according to claim 1, wherein the identification information is formed on a basal plane buried in the denture base.   The artificial tooth according to claim 1 or 2, wherein the identification information includes a dental formula number indicating a position of a tooth in the dental arch.   The artificial tooth according to claim 3, wherein the dental formula number is arranged such that an upper side of the dental formula number faces a lip side, a palate side, a lingual side, a cheek side, a distal side or a mesial side.   The artificial tooth according to claim 3 or 4, wherein the tooth number is a notation according to any one of an FDI method, a universal method, a Zsigmondy-Palmer method, and a MICAP method.   The artificial tooth according to claim 2, wherein the identification information is formed by a concave portion by a groove or a convex portion by a ledge.   The artificial tooth according to any one of claims 1 to 6, wherein the identification information includes character information for identifying a tooth type.   The artificial tooth according to claim 2, wherein a concave portion that can identify the type of tooth by the shape of the opening or a convex portion that can be identified by the shape of the top surface is formed on the base surface.   The artificial tooth according to any one of claims 1 to 8, wherein a transmitting element in which the identification information is stored and is readable in a radio signal is incorporated.   An artificial tooth set comprising a plurality of artificial teeth according to any one of claims 1 to 9.   A denture having the artificial tooth according to any one of claims 1 to 9 and a denture base that supports the artificial tooth.