JP5647527B2 - Tooth model verification apparatus and tooth model verification method using the same - Google Patents

Description

  The present invention relates to a dental model verification apparatus used for comparative verification of dental model for dental mold engraving practice. More specifically, in order to learn an accurate tooth shape in dental technician learning, The present invention relates to a tooth model verification apparatus capable of easily and accurately comparing and verifying a tooth model to be manufactured and a sample tooth model, and a tooth model verification method using the same.

  In general, the purpose of learning dental technicians is to learn the shape of teeth (especially the shape of the crown) in three dimensions, or to learn the basic skills of dental technicians (such as the nature and handling of instruments and materials). As a practice of dental sculpture.

  As shown in FIGS. 10 (a) to 10 (h), this tooth-type sculpture training is a multiple-time (for example, six times) drawing a development view on a plaster or wax prism and roughly carving it with a sword. The rough engraving process is sequentially performed, and then the crown and root having a smooth and accurate tooth shape are carved in the final finishing process (for example, refer to Non-Patent Document 1).

  In the above-mentioned practice of tooth sculpture, trainees produce tooth model under the guidance of the instructor, but if the tooth axis etc. slightly shifts in the middle of multiple rough carving processes, in the finishing process The final tooth shape will deviate significantly from the target shape.

  Therefore, trainees and instructors, such as the dentition model in the process of production and the sample dentition model that is an accurate tooth shape, such as the lip side, cheek side, lingual side, mesial plane, centrifugal surface, etc. Place each face in the same direction so that they face each other, hold both hands together by holding them between fingers, move the hands, move the head, etc. By comparing and verifying from various directions, it is frequently confirmed that the tooth shape is not deviated from the target shape.

Masatomo Saeki, Jiro Seo, “Dental Technician Textbook, Anatomy of Teeth”, 1st Edition, Ishiyaku Publishing Co., Ltd., January 20, 1998, P139-173

  However, in the practice of the conventional dental mold engraving, it is not possible to accurately verify the comparison between the dental mold model being manufactured and the sample dental mold model, so that the trainee can easily learn the tooth shape in a short time. There was a problem that it became difficult.

  In other words, when comparing two dental models, as described above, the two dental models are placed in contact with each other and sandwiched between fingers to move the hand or move the head. Training that does not remember the tooth shape in three dimensions because it is ambiguous that it is ambiguous how much the tooth is moved, how much the head is moved, or from which position the tooth model is viewed It makes it difficult for students to point out and recognize tooth shape shifts. Furthermore, when comparing and verifying the tooth model from an oblique direction, in particular from an oblique direction of 45 °, it is very easy to see the two tooth models from the same direction at the same angle after being brought into contact with each other. It was difficult, and it was very difficult for the trainees to find the tooth shape deviation and to recognize and understand the tooth shape deviation.

  The present invention has been made in view of the above-mentioned present situation, and provides a dental model verification apparatus and a dental model verification method using the dental model verification apparatus that can accurately compare and verify two dental models. Objective.

In order to solve the above-described problem, the invention according to claim 1 is configured such that a first holding seat for holding a dental mold model for dental mold engraving training and a dental model for comparison and verification with the dental model are held. A second holding seat, and a machine base that supports the first holding seat and the second holding seat so that the tooth model held by the first holding seat and the second holding seat are arranged side by side, The gist of the invention is that it includes an interlocking mechanism that is provided on the machine base and rotates or tilts the first holding seat and the second holding seat together at the same angle in the same direction.
According to a second aspect of the present invention, in the first aspect, the interlocking mechanism is configured so that the first holding seat and the second holding seat are the same in the same direction, with the tooth axis of the tooth model approximately at the center. The gist is to rotate them together at an angle.
According to a third aspect of the present invention, in the first or second aspect, the interlocking mechanism is substantially orthogonal to the tooth axes of both tooth models held by the first holding seat and the second holding seat. The gist is that the first holding seat and the second holding seat are tilted together at the same angle in the same direction around the axis to be moved.
According to a fourth aspect of the present invention, in any one of the first to third aspects, the first holding seat and the second holding seat are joined together at the same angle in the same direction by the interlocking mechanism. The gist of the present invention is that a scale portion is further provided for indicating the amount of movement of the first holding seat and the second holding seat, respectively, when rotating or tilting together.
The invention according to claim 5 is a dental model verification method using the dental model verification apparatus according to any one of claims 1 to 4, wherein the first holding seat or the second holding seat is used. One of these holds a tooth model serving as a sample, and the other holds a tooth model to be compared with the sample tooth model, and the interlocking mechanism causes the first holding seat and the above The second holding seat is rotated or tilted together at the same angle in the same direction, and the two dental models are aligned at the same angle in the same direction with respect to the verifier's viewpoint. The gist is to compare and verify the two tooth models with the same direction.

  According to the tooth model verification apparatus of the present invention, the first holding seat and the second holding seat that hold the tooth model, and the tooth models held by the first holding seat and the second holding seat are adjacent to each other. And a machine base for supporting the first holding seat and the second holding seat so that the two tooth models to be compared and verified need not be directly held by hand. Each tooth model can be stably held on the first holding seat and the second holding seat supported by the machine base by placing the device in a predetermined place. Further, since the machine base is provided with an interlocking mechanism that rotates or tilts the first holding seat and the second holding seat together at the same angle in the same direction, it can be seen by moving the hand or the head. It is possible to align the two dental models in the same direction and at the same angle with the verifier's point of view in place, without the ambiguous act of changing the direction. Accordingly, the viewpoint of the verifier can be substantially determined by stably holding the two tooth models on the first holding seat and the second holding seat supported by the machine base, and the two teeth are connected by the interlocking mechanism. By aligning the mold models in the same direction and at the same angle, the appearance of the tooth model from the verifier is determined substantially uniformly, so that the comparison verification of the two tooth models can be performed accurately.

  When the interlock mechanism rotates the first holding seat and the second holding seat together at the same angle in the same direction about the tooth axis of the tooth model, the lip side surface, the cheek side surface, the tongue side surface View the two dental models from almost horizontal directions while keeping the viewpoint of the verifier in a fixed position, such as viewing the mesial plane and the centrifugal plane not only in a straight direction but also in an oblique direction. Since it is possible to compare, it becomes easy to recognize the deviation of the tooth shape, and by rotating the first holding seat and the second holding seat while holding the tooth model, the tooth axis of the tooth model in the middle of manufacture can be obtained. It can be confirmed whether it has shifted.

  When the interlocking mechanism tilts the first holding seat and the second holding seat together at the same angle in the same direction about an axis substantially orthogonal to the tooth axis of both tooth models, Compare each view of the two dental models from almost vertical directions while keeping the viewpoint of the verifier in place, such as looking at the edges of the incision and the occlusal surface not only in a straight direction but also in an oblique direction. This makes it easy to recognize the deviation of the tooth shape.

  In addition, in the case where scale parts indicating the movement amounts of the first holding seat and the second holding seat are further provided, the two tooth models can be surely aligned at the same angle in the same direction, and the verifier It is possible to make the appearance of the tooth model from the numerical value constant.

  Further, according to the dental model verification method using the dental model verification apparatus of the present invention, the first holding seat and the second holding seat are rotated or tilted together at the same angle in the same direction, By aligning the two dental models with the same angle at the same angle with respect to the verifier's viewpoint, the two dental models are compared and verified in the same way as viewed by the verifier. It can be carried out.

The present invention will be further described in the following detailed description with reference to the drawings referred to, with reference to non-limiting examples of exemplary embodiments according to the present invention. Similar parts are shown throughout the several figures.
1 is a perspective view of a dental model verification device according to Embodiment 1. FIG. (A) is a plan view, (b) is a view from arrow II of (a), and (c) is a view from arrow III of (a) of the dental mold model of the upper right second premolar according to Example 1. is there. (A) of a holding seat concerning Example 1 is a perspective view, and (b) is a transverse cross section. 3 is a plan view of the interlocking mechanism according to Embodiment 1. FIG. FIG. 6 is an explanatory diagram for explaining the operation of the interlocking mechanism according to the first embodiment. It is explanatory drawing for demonstrating the verification method using a tooth type model verification apparatus. Similarly, it is explanatory drawing for demonstrating the verification method. It is a reference figure for demonstrating the kind of human tooth. It is a reference figure for demonstrating the direction of a human tooth. It is explanatory drawing for demonstrating the training method of the conventional general tooth type engraving.

  The items shown here are for illustrative purposes and exemplary embodiments of the present invention, and are the most effective and easy-to-understand explanations of the principles and conceptual features of the present invention. It is stated for the purpose of providing what seems to be. In this respect, it is not intended to illustrate the structural details of the present invention beyond what is necessary for a fundamental understanding of the present invention. It will be clear to those skilled in the art how it is actually implemented.

1. Tooth model verification apparatus The tooth model verification apparatus according to the present invention is used for comparative verification of a tooth model for dental engraving training, and includes a first holding seat, a second holding seat, which will be described later, A machine base and an interlocking mechanism are provided. This dental model verification apparatus can further include, for example, a scale portion described later.

  The type, size, material, etc. of the “dental model” are not particularly limited. This tooth model is generally configured to include a crown portion, and is preferably configured to further include at least one of a tooth root portion and a placement portion described later.

  The type, size, material, etc. of the “dental crown” are not particularly limited. Examples of the crown part include anterior teeth including incisors and canines, molars including premolars and molars. The crown portion of the front tooth usually has a mesial surface, a distal surface, a labial surface, a lingual surface, and a cut surface. Further, the crown portion of this molar tooth usually has a mesial surface, a distal surface, a buccal side surface, a lingual side surface, and an occlusal surface. Further, the size of the crown portion can be, for example, the same size as an actual human crown, or a size that is enlarged or reduced at a predetermined magnification with respect to the actual human crown. Examples of the material of the crown portion include gypsum, synthetic resin, metal, and the like. Moreover, although this dental crown part can be another member which can be attached or detached to the mounting part (or crown part) mentioned later, for example, it is a member integral with a mounting part (or crown part). Is preferred. In addition, a dental crown means the part covered with enamel among teeth.

  As long as the “tooth root” is connected to the crown portion, the type, size, material, and the like are not particularly limited. Examples of the root part include anterior teeth including incisors and canines, molars including premolars and molars. In addition, the size of the tooth root portion can be, for example, the same size as an actual human tooth root, or a size enlarged or reduced at a predetermined magnification with respect to the actual human tooth root. In addition, examples of the material of the tooth root include gypsum, synthetic resin, and metal. Moreover, this tooth root part can be another member which can be attached or detached to the mounting part (or said crown part) mentioned later, for example, However, It is a member integral with a mounting part (or crown part). Is preferred. In addition, a tooth root means the part covered with cementum among teeth.

  The “mounting portion” is not particularly limited in shape, size, material, and the like as long as it has a flat mounting surface for mounting on a floor surface such as a table. When the tooth model has only a crown portion, the placement portion is usually connected to the crown portion. When the tooth model includes a crown portion and a root portion, the placement portion is usually connected to the root portion. In addition, examples of the shape of the placement portion include a block shape, a flat plate shape, and a multi-leg shape.

  For reference, as shown in FIG. 8, the human maxillary and mandibular teeth include middle incisors, side incisors, canines, first premolars, second premolars, first premolars, second larges There are molars and third molars. Further, as shown in FIG. 9, the side where the front teeth such as incisors and canines face the lip mucosa is referred to as “lip side”, and the side where the molars such as premolars and molars face the buccal mucosa is referred to as “buccal side”. . Furthermore, the opposite direction of the lips and cheeks, that is, the medial direction, is the “palatal side” for the upper jaw and the “lingual side” for the lower jaw. In this specification, the upper and lower jaws all use the “lingual side”. To do.

  The “first holding seat” and the “second holding seat” are not particularly limited in shape, material, color, size, and the like as long as the tooth model for the dental mold engraving training is held. . Examples of the shapes of the first holding seat and the second holding seat include a cylindrical shape and a rectangular tube shape. Examples of the material of the first holding seat and the second holding seat include synthetic resin, metal, and glass. Examples of the colors of the first holding seat and the second holding seat include opaque or colored and transparent or colorless and transparent of the same color or different colors.

  In addition, the first holding seat and the second holding seat have different shapes, sizes, colors, etc. from the viewpoint of conspicuous deviation of the shape of the tooth model held by each without being distracted by other differences. Preferably they are the same. The first holding seat and the second holding seat are usually used, for example, holding a tooth model produced by a trainee in the first holding seat and holding a sample tooth model in the second holding seat. A tooth model in the middle of manufacturing is held in either one, and a tooth model serving as a sample is held in either one, but as long as the held one is a tooth model, for example, the same trainee is manufactured in the past Tooth model that has been prepared, tooth model that is currently being manufactured, tooth model that is being produced by different trainees, tooth model of maxillary second premolar and tooth model of mandibular second premolar, etc. There is no particular limitation on the type of tooth model held for comparison and verification.

  The “machine base” is a table in which the tooth model models respectively held by the first holding seat and the second holding seat are arranged side by side, and supports the first holding seat and the second holding seat. As long as it is, the shape, material, color, size, etc. are not particularly limited. Examples of the shape of the machine base include a box shape and a frame shape. Examples of the material of the machine base include synthetic resin, metal, and glass.

  As long as the “interlocking mechanism” is provided on the machine base and rotates or tilts together the first holding seat and the second holding seat at the same angle in the same direction. The structure and material are not particularly limited. As this interlocking mechanism, for example, a mechanism using meshing gears, a mechanism using pulleys and belts, and the like can be used.

  Here, in the tooth model verification device according to the present invention, the interlocking mechanism is configured so that, for example, (1) the first holding seat and the second holding seat are in the same direction, with the tooth axis of the tooth model approximately at the center And (2) the first holding centered on an axis substantially orthogonal to the tooth axis of both tooth models held by the first holding seat and the second holding seat. A configuration in which the seat and the second holding seat are tilted together at the same angle in the same direction can be exemplified. Moreover, the form which combined these (1) and (2) forms can also be mentioned.

  In the case of the form (1), as long as the first holding seat and the second holding seat are rotated together around the tooth axis of the tooth model, the configuration, the rotation direction, etc. Is not particularly limited. Examples of the rotation direction in the case of (1) include rotation in the left-right direction in a horizontal plane.

  The “tooth axis” is the long axis of the tooth, and when viewed from each direction of the labial side, cheek side, lingual side, or near-distal surface, the cervical part (nearly distal) A straight line that passes in the vicinity of ½) of the diameter and runs vertically in the apical direction, that is, an axis that extends vertically so as to bisect the dental model. Therefore, “to rotate the first holding seat and the second holding seat together about the tooth axis together” means that the first holding seat and the second holding seat are centered on the tooth axis. When the first holding seat and the second holding seat are rotated together around an axis extending in the vertical direction (hereinafter also referred to as “vertical axis”). Shall be included.

  In the case of (2), the first holding seat and the second holding are centered on an axis substantially orthogonal to the tooth axis of both tooth models held by the first holding seat and the second holding seat. As long as the seat is tilted together at the same angle in the same direction, the configuration, the rotation direction, etc. are not particularly limited. Examples of the rotation direction in the case of (2) include rotation in the front-rear direction in a vertical plane.

  Note that “the first holding seat and the second holding seat are tilted together about an axis substantially orthogonal to the tooth axis of both tooth models” means that the tooth axes of both tooth models are the same. In addition to tilting the first holding seat and the second holding seat together about an axis orthogonal to the axis, an axis extending in the lateral direction perpendicular to two parallel vertical axes (hereinafter referred to as “horizontal axis”) And the first holding seat and the second holding seat are tilted together.

  The “scale portion” is configured to rotate the first holding seat and the second holding seat together in the same direction at the same angle or tilt together by the interlocking mechanism. The type, shape, size, display method, and the like are not particularly limited as long as the amount of movement of the second holding seat is indicated. Examples of the scale portion include display by lines printed at equal intervals, angle display by frequency and π, numerical display such as Arabic numerals and Roman numerals, and the like.

2. The dental model verification method using the dental model verification apparatus The dental model verification method according to the present invention is a verification method of the dental model using the dental model verification apparatus, and includes a first holding seat or a second One of the holding seats holds a tooth model as a sample, and the other holds a tooth model to be compared with the sample tooth model, and the first holding seat is operated by an interlocking mechanism. And the second holding seat are rotated or tilted together at the same angle in the same direction, and the two dental models are aligned at the same angle in the same direction with respect to the verifier's viewpoint. It is characterized by comparing and verifying two tooth models. In this case, the verifier can see each surface of the two dental models from any direction such as a 45 ° oblique direction or an upward direction while keeping the position of his / her viewpoint unchanged.

  Hereinafter, the present invention will be described in detail with reference to the drawings.

(1) Configuration of Tooth Model Verification Device As shown in FIG. 1, the tooth model verification device 10 according to this embodiment includes a machine base 11, two holding seats 12 supported by the machine base 11, It has. As the interlocking mechanism, the machine base 11 is provided with a rotation adjustment mechanism 13 that rotates the two holding seats 12 in the horizontal direction, and an inclination adjustment mechanism 14 that tilts the two holding seats 12 in the vertical direction. . The dental model verification apparatus 10 holds the dental model on each holding seat 12 and appropriately adjusts the appearance of the dental model with the rotation adjusting mechanism 13 and the inclination adjusting mechanism 14 as desired. Used to compare and verify two dental models. Further, in the tooth model verification device 10, as the scale portion indicating the movement amount of the holding seat 12, the angle scale 15 indicating the rotation angle of the holding seat 12 by the rotation adjusting mechanism 13 and the holding by the tilt adjusting mechanism 14. An inclination scale 16 indicating the inclination of the seat 12 is provided.

  In the present embodiment, in the two holding seats 12, when the dental model verification device 10 is viewed from the front, the one located on the left side is the first holding seat 12A, and the one located on the right side is the second holding seat 12B. However, there is no particular difference in configuration between the first holding seat 12A and the second holding seat 12B, and hereinafter, when simply referred to as “holding seat 12”, both the first holding seat 12A and the second holding seat 12B are used. Shall be shown.

<Dental model>
As shown in FIGS. 2A to 2C, the tooth model 1 according to the present embodiment is made of gypsum and includes a rectangular placement portion 2 that is stably placed on a table or the like. . From this placement part 2, a tooth root part 3 extends upward.

  Here, the tooth shaft 5 of the tooth model 1 according to the present embodiment basically means a line extending in the direction in which the tooth root portion 3 extends from the placement portion 2, and more specifically, a plane. A line extending so as to pass through the center of the placement part 2 in the view and the center of the tooth root part 3 in the plan view. Therefore, in this embodiment, the tooth axis 5 and the vertical axis are substantially equal.

  From the root 3, a crown 6 extends upward. The crown portion 6 is for a molar (maxillary right second premolar) and has tooth surfaces of a mesial surface, a distal surface, a labial surface, a cheek surface, and an occlusal surface. Further, between the crown portion 6 and the tooth root portion 3, a tooth neck line 7 indicating a boundary between enamel and cementum is formed.

  In the present embodiment, the tooth model 1 of the upper right second premolar is illustrated as the tooth model, but the tooth model 1 used in the tooth model verification apparatus 10 of the present invention is the above tooth type. Without being limited to, models corresponding to all tooth types can be used.

<Machine stand>
As shown in FIG. 1, the machine base 11 according to the present embodiment includes a leg 21 having a concave shape when viewed from the front, and a support base 22 supported on an upper portion of the leg 21. The support base 22 has a horizontally long rectangular parallelepiped shape in a plan view, and a support shaft 23 protrudes in the center of both side surfaces which are both ends in the longitudinal direction so as to extend in the horizontal direction.

  The support base 22 is configured to be tiltable about the support shaft 23 (horizontal axis) by inserting the support shaft 23 into the inner surfaces of both side portions of the leg body 21. Further, a holding hole (not shown) for supporting the holding seat 12 is formed in the support base 22 so as to open in the vertical direction (vertical direction) of the support base 22. Two holding holes are formed corresponding to the first holding seat 12 </ b> A and the second holding seat 12 </ b> B, and the two holding holes are adjacent to each other in the longitudinal direction of the support base 22. (Horizontal axis) are arranged side by side in the extending direction.

<Holding seat>
As shown in FIGS. 3A and 3B, the holding seat 12 according to the present embodiment has a holding seat body 31 formed in a cylindrical shape and an upper end portion on the inner peripheral surface of the holding seat body 31. And an elastic piece 32 attached thereto. The elastic piece 32 is formed by bending an elastic metal thin plate so that the lower half 32b is closer to the axis of the holding seat body 31 than the upper half 32a. is there.

  The holding seat 12 is configured to hold the tooth model 1 by inserting the placement portion 2 of the tooth model 1 into the inside of the opening on the upper end side. That is, when the placement part 2 of the tooth model 1 is inserted inside the opening of the holding seat 12, the placement part 2 pushes the lower half part 32 b of the elastic piece 32 to the peripheral wall of the holding seat 12. The elastic piece 32 that has been elastically deformed exhibits an urging force by trying to restore its original shape and presses the mounting portion 2 against the inner peripheral surface of the holding seat 12, The tooth model 1 is held on top of the holding seat 12. Further, the tooth model 1 is held by the holding seat 12 by the urging force of the elastic piece 32, but is not fixed, and is pushed into the holding seat 12 against the urging force of the elastic piece 32. Alternatively, the height position on the holding seat 12 can be adjusted by pulling up. Further, in a state where the tooth model 1 is held on the holding seat 12, the center of the mounting portion 2 of the tooth model 1 in plan view is substantially coincident with the center of the holding seat 12 in plan view (FIG. 4). See), the tooth axis 5 of the tooth model 1 and the axis of the holding seat 12 substantially coincide.

  The holding seat 12 is supported by the leg body 21 through the support base 22 by being inserted into a holding hole formed in the support base 22 of the machine base 11. The two holding seats 12 are respectively inserted into the two holding holes of the support base 22 to constitute a first holding seat 12A and a second holding seat 12B. Since the two holding holes of the support base 22 are arranged next to each other as described above, the tooth model 1 held respectively on the first holding seat 12A and the second holding seat 12B is also provided. They will be lined up next to each other.

<Interlocking mechanism>
The rotation adjustment mechanism 13 of the interlocking mechanism according to the present embodiment includes a large gear 41 and a small gear 42 accommodated in the support base 22 in the machine base 11. The large gear 41 is mounted on the outer peripheral surface of the holding seat 12 as shown in FIGS. 1 and 3A. The first holding seat 12 </ b> A and the second holding seat 12 </ b> B configured by the holding seat 12 are spaced apart so that the large gears 41 do not mesh with each other inside the support base 22. As shown in FIGS. 1 and 4, the small gear 42 is disposed inside the support base 22 so as to mesh with both the large gears 41 of the first holding seat 12 </ b> A and the second holding seat 12 </ b> B. A rotating operation knob 43 is attached to the small gear 42. The rotary operation knob 43 protrudes outward from the lower surface of the support base 22 and is exposed to the outside. When the rotary operation knob 43 is rotated, the small gear 42 rotates as indicated by an arrow in FIG. 4, and the large gear 41 rotates as the small gear 42 rotates. Since the large gear 41 is mounted on the outer peripheral surface of the holding seat 12, the first holding seat 12A and the second holding seat 12B are in the same direction around the axis, that is, the tooth axis 5 (vertical axis). Rotate together at the same angle.

  As shown in FIG. 1 and FIGS. 5A and 5B, the tilt adjusting mechanism 14 of the interlocking mechanism according to the present embodiment includes a large pulley 44, a small pulley 45, and the like provided in the machine base 11. And a belt 46 laid between the large pulley 44 and the small pulley 45. The large pulley 44 is fixed on one spindle 23 of the support base 22 in the machine base 11. The small pulley 45 is rotatably attached to the inner surface of one side of the leg 21 in the machine base 11. An inclination operation knob 47 is attached to the small pulley 45. The tilt operation knob 47 protrudes outward from the outer surface of the leg 21 and is exposed to the outside. When the tilt operation knob 47 is rotated, as shown by the arrow in FIG. 5A, the small pulley 45 rotates, and the rotation of the small pulley 45 is transmitted to the large pulley 44 via the belt 46, The large pulley 44 rotates. Since the large pulley 44 is fixed on the support shaft 23 of the support base 22, the support base 22 tilts around the support shaft 23 (horizontal axis), and the first holding seat supported by the support base 22. 12A and the second holding seat 12B tilt together at the same angle in the same direction around the support shaft 23 (horizontal axis).

  Note that, as described above, the tooth shaft 5 serving as the rotation center of each of the first holding seat 12A and the second holding seat 12B is substantially equal to the vertical axis in this embodiment, and the first holding seat 12A and the second holding seat. Since 12B is arranged side by side in the direction in which the support shaft 23 (horizontal axis) extends, the support shaft 23 (horizontal axis) is orthogonal to the tooth axes 5 of both the first holding seat 12A and the second holding seat 12B. To do.

<Scale unit>
The angle scale 15 of the scale portion according to the present embodiment has a cylindrical vertical sleeve 51 protruding from the upper surface of the support base 22 and surrounding the upper portion of the holding seat 12. It is provided by engraving graduation lines. Corresponding to the angle scale 15, a pointer 52 is provided on the upper surface of the holding seat 12.

  The inclination scale 16 of the scale portion according to the present embodiment is provided with a cylindrical horizontal sleeve 53 projecting from the outer surface of the leg 21 and surrounding the shaft portion of the tilt operation knob 47, and on the end surface of the horizontal sleeve 53. It is provided by engraving graduation lines at regular intervals. Corresponding to the gradient scale 16, a pointer 54 is provided on the tilt operation knob 47.

(2) Dental model verification method A dental model verification method using the dental model verification device 10 according to the present embodiment will be described. When the tooth model verification device 10 is used, first, the tooth model 1 serving as a sample is held in either the first holding seat 12A or the second holding seat 12B, and the tooth to be compared and verified with the sample in either one The model 1 is held. In the present embodiment, the tooth model 1 as a sample is held in the first holding seat 12A, and the tooth model 1 to be compared and verified is held in the second holding seat 12B.

  Next, as shown in FIG. 6A, the verifier E who performs comparison verification places the viewpoint in front of the tooth model verification device 10, compares the two tooth models 1, and compares and verifies the tooth model 1. Check if there is any deviation in the shape of

  At this time, as shown in FIG. 6B, the verifier E rotates the rotary operation knob 43 appropriately to bring the two tooth model 1 together with the tooth shaft 5 in the same direction and at the same angle. It can be rotated. The two tooth models 1 rotated together at the same angle in the same direction are aligned at the same angle in the same direction with respect to the viewpoint of the verifier E, especially when viewed from an oblique 45 ° direction. Carefully check the shape of the tooth model 1 for any deviations.

  On the other hand, as shown in FIGS. 7A and 7B, the verifier E rotates the tilt operation knob 47 as appropriate so that the two tooth models 1 are placed in the same direction around the support shaft 23. Can be tilted together at the same angle. The two tooth models 1 tilted together at the same angle in the same direction are aligned at the same angle in the same direction with respect to the verifier E's viewpoint, particularly when viewed from an oblique 45 ° direction. Carefully check the shape of the tooth model 1 for any deviation.

(3) Effects of the tooth model verification device According to the tooth model verification device of the present embodiment, the two tooth model models 1 to be compared and verified are held by the first holding seat 12A and the second holding seat 12B, respectively. It is not necessary to hold by hand, and by placing the machine base 11 in a predetermined place, the tooth model 1 can be stably held without wobbling during comparison verification.

  The machine base 11 includes a rotation adjusting mechanism 13 that rotates the first holding seat 12A and the second holding seat 12B together at the same angle in the same direction, and an inclination adjustment mechanism that tilts the same at the same angle in the same direction. In order to change the appearance of the tooth model 1 while keeping the viewpoint of the verifier E in a fixed position without moving the head in particular, the tooth model 1 is moved in the same direction and at the same angle. It can be moved by aligning.

  Further, the rotation adjusting mechanism 13 can rotate the dental model 1 in the direction of 360 ° about the tooth axis 5 so that the viewpoint of the verifier E is left at a fixed position, and the lip side surface and cheek side surface. Each surface such as the tongue side surface, mesial surface, and centrifugal surface can be viewed not only in a straight direction but also from an oblique 45 ° direction.

  In addition, the rotation adjusting mechanism 13 can compare two tooth model models viewed from almost horizontal directions, so that it is possible to easily recognize the deviation of the tooth shape, and the rotation of the tooth model model 1 during rotation. The deviation of the tooth shaft 5 can be easily confirmed by checking the runout.

  In addition, the tilt adjustment mechanism 14 can tilt the dental model 1 in the front-rear direction about the support shaft 23 that is orthogonal to the tooth shaft 5, so that the viewpoint of the verifier E remains in place, Each face such as the cut edge view and the occlusal face of the tooth model 1 can be seen not only in a straight direction but also from an oblique 45 ° direction.

  Further, since the angle scale 15 indicating the rotation amount of the tooth model 1 by the rotation adjusting mechanism 13 and the inclination scale 16 indicating the inclination amount of the tooth model 1 by the inclination adjusting mechanism 14 are provided, the verifier has the angle scale 15. Alternatively, by transmitting the numerical value read on the gradient scale 16 to the trainee, the tooth model 1 can be compared and verified in the same way as the view from the verifier, and the tooth shape deviation can be easily recognized. Can do.

  Further, according to the tooth model verification method of the present invention, the first holding seat 12A and the second holding seat 12B are rotated or tilted together at the same angle in the same direction, and the viewpoint of the verifier E is obtained. On the other hand, the two dental models 1 are aligned in the same direction and at the same angle so that the view from the verifier is the same, and the two dental models are compared and verified. Therefore, the comparative verification can be performed accurately. .

(4) Examples of Modifications In the present invention, the present invention is not limited to the above-described embodiments, and various modifications can be made as follows within the scope of the present invention depending on the purpose and application.

  The scale part is not limited to the scale line alone, and may be composed of a scale line, a numerical value, a numerical value, and the like. Moreover, you may abbreviate | omit a scale part.

  The interlocking mechanism does not need to be provided with the rotation adjusting mechanism 13 and the tilt adjusting mechanism 14. For example, only the rotation adjusting mechanism 13 or only the tilt adjusting mechanism 14 may be provided.

  In the tilt adjusting mechanism 14, in order to stop tilting at a predetermined angle, for example, a rubber ring may be wound around the shaft portion of the tilt operating knob 47, or a latch may be provided.

  The present invention is widely used in, for example, learning of dental technicians at vocational schools and dental universities and related fields.

DESCRIPTION OF SYMBOLS 1; Dental model, 2; Placement part, 3; Root part, 5; Tooth axis, 6; Crown part, 10; Dental model verification apparatus, 11; Machine base, 12A; Second holding seat, 13; rotation adjustment mechanism, 14; inclination adjustment mechanism, 15; angle scale, 16; inclination scale.

Claims (5)

A first holding seat for holding a tooth model for dental sculpture training;
A second holding seat for holding a tooth model to be compared with the tooth model,
A machine base that supports the first holding seat and the second holding seat so that the tooth model held by the first holding seat and the second holding seat are arranged side by side;
An interlocking mechanism that is provided on the machine base and rotates or tilts together the first holding seat and the second holding seat at the same angle in the same direction;
A dental model verification device comprising: The tooth pattern according to claim 1, wherein the interlocking mechanism rotates the first holding seat and the second holding seat together at the same angle in the same direction around the tooth axis of the tooth model. Model verification device. The interlocking mechanism has the first holding seat and the second holding seat centered on an axis substantially orthogonal to the tooth axis of both tooth models held by the first holding seat and the second holding seat. The tooth model verification apparatus according to claim 1, wherein the tooth model verification apparatus is tilted together at the same angle in the same direction. When the interlocking mechanism causes the first holding seat and the second holding seat to rotate or tilt together at the same angle in the same direction, the amount of movement of the first holding seat and the second holding seat The tooth type model verification apparatus according to any one of claims 1 to 3, further comprising a scale portion for indicating each of the parameters. A dental model verification method using the dental model verification apparatus according to any one of claims 1 to 4,
Either one of the first holding seat and the second holding seat holds a sample tooth model, and the other holds a sample tooth model to be compared and verified with the sample tooth model,
By the interlocking mechanism, the first holding seat and the second holding seat are rotated or tilted together at the same angle in the same direction,
A dental model verification method characterized by comparing two dental models after aligning two dental models in the same direction and at the same angle with respect to the verifier's viewpoint.

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