Dental model for dental treatment practice

Abstract

To provide a dentiform for practicing dental treatment that enables identification of a dental nerve structure through practice and allows mastery of nerve treatment skills such as dental nerve removal surgery by forming an individual tooth consisting of a tooth crown and a tooth root, forming coupling guide projections on an outer surface of the tooth root to prevent separation when coupled with tooth-fixing blocks and to guide a coupling direction, and forming a dental nerve in the same shape as a real dental nerve inside the tooth root.SOLUTION: The dentiform for practicing dental treatment is configured by including: an individual tooth forming a tooth crown and a tooth root; tooth-fixing blocks to which the tooth root of the individual tooth is detachably connected; and a chin support to which the tooth-fixing blocks are fixedly installed and which is connected to a temporomandibular joint on either one of an upper jaw part and a lower jaw part.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] [Cross - reference to Related Applications] This application claims the benefit of priority based on Korean Patent Application No. 10 - 2023 - 0079994 filed on June 21, 2023, and all the contents disclosed in the literature of the Korean patent application are incorporated herein by reference as part of this specification.

[0002] The present invention relates to a dental phantom for dental treatment practice. More specifically, it relates to a dental phantom for dental treatment practice that forms a dental nerve in the same form as the actual dental nerve inside the tooth root, enabling proficiency in nerve treatment capabilities such as identification of the dental nerve structure and nerve removal surgery through practice.

Background Art

[0003] Generally, dental nerve treatment is a treatment performed when pain is felt because dental caries or the like has penetrated beyond the dentin of the base body (tooth crown) of the tooth to the dental nerve (pulp chamber and root canal) area. When the diagnosis of dental nerve treatment is confirmed, a hole is drilled in the base body of the tooth using a dental treatment drill instrument, and after removing the dental tissue and blood vessels of the dental nerve using an electric instrument for nerve removal, the cavity of the root canal is disinfected, and a substitute material is embedded in the cavity and hole of the root canal. It is a kind of prosthetic treatment carried out through this process.

[0004] Such dental nerve treatment can prevent recurrence of pain and preserve natural teeth to the maximum extent only when the dental nerve is completely removed while minimizing damage to the dentin of the tooth. Therefore, a lot of practice must be carried out for proficiency in nerve treatment techniques.

[0005] General dental phantoms are used for prosthetic restoration. Dental caries and nerve treatment models are classified as special teeth and can be used for nerve treatment. Currently, general dental universities are conducting practice using dental models for nerve treatment and dental caries treatment.

[0006] However, in the practice tooth models that have been conventionally used, there are problems such as having structural differences from actual teeth and limitations in materials, resulting in a decline in the quality of practice compared to using extracted teeth. And the practice teeth have a short and round lower end, and even when fixed with screws or roots are formed, they are filled and fixed with plaster or resin, so there are problems such as limitations in practice and inconvenience.

[0007] In particular, in the case of practice teeth for endodontic treatment with roots, due to the shape of the roots, it is difficult to fix them to a general dentiform, so the teeth are fixed and practiced using plaster or resin from a syringe. In this case, after the practice, the plaster or resin must be removed in order to extract the teeth again, so there is a problem that the work of fixing or separating the teeth is complicated and difficult.

[0008] Also, there is a case where the tooth roots are manufactured flat and fixed to a general dentiform with screws, but there is a problem that there are limitations in practice because they are not the same as actual teeth.

Prior Art Documents

Patent Documents

[0009]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0010] An object of the present invention is to provide a dental treatment practice dentiform in which individual teeth composed of a crown and a root are formed, a coupling guide protrusion for guiding the coupling direction while preventing detachment when coupling with the tooth fixing block side is formed on the outer surface of the root, and a tooth nerve having the same form as an actual tooth nerve is formed inside the root, so that it is possible to identify the tooth nerve structure through practice and to be proficient in nerve treatment capabilities such as tooth nerve removal surgery.

[0011] Another object of the present invention is to provide a dental training dentiform that can stably fix individual teeth with roots formed using a tooth fixing block so as not to sway according to the tooth arrangement, and after practice, only the corresponding individual teeth that need to be replaced can be separated from the fixing block, making it convenient to use, and the remaining accessories can be recycled.

[0012] Another object of the present invention is to provide a dental training dentiform that enables measurement of the root canal length of individual teeth during nerve treatment practice.

Means for Solving the Problems

[0013] According to one aspect of the present invention, there can be provided a dental training dentiform including: individual teeth forming crowns and roots; a tooth fixing block to which the roots in the individual teeth are detachably coupled; and a jaw support on which the tooth fixing block is fixedly installed and coupled to a temporomandibular joint on either the upper jaw or the lower jaw.

[0014] According to another aspect of the present invention, there can be provided a dental training dentiform including: individual teeth forming crowns and roots; a tooth fixing block to which the roots in the individual teeth are detachably coupled; a tooth stem portion in which the respective tooth fixing blocks are assembled according to the tooth arrangement; and a jaw support on which the tooth stem portion and the tooth fixing block are fixedly installed and coupled to a temporomandibular joint on either the upper jaw or the lower jaw.

[0015] Here, on the outer surface of the root in the individual tooth, coupling guide protrusions may be formed to guide the coupling direction while preventing detachment when coupling with the tooth fixing block side.

[0016] Also, an internal space is formed inside the tooth fixing block, and a clearance space may be formed between the root and the inner surface of the internal space.

[0017] Also, the internal space of the tooth fixing block may be filled with a conductive gel for root canal length measurement.

[0018] The tooth fixing block is composed of a first half assembled outside the dental arch with individual teeth sandwiched therebetween and a second half assembled inside the dental arch. An internal space filled with a conductive gel is formed in the first half and the second half. Tooth fixing holes for covering and fixing the outer surfaces of individual teeth are formed in the upper frame of the internal space. Protrusion coupling parts enabling male-female coupling between the first half and the second half may be formed in the upper frame and the lower frame of the internal space.

[0019] At this time, coupling guide grooves may be formed on the inner surface of the tooth fixing holes, which are aligned with coupling guide protrusions formed on individual teeth.

[0020] In addition, the planar shape of the tooth fixing block may be manufactured in a fan shape in which the angle gradually widens from the inner side direction to the outer side direction of the dental arch.

[0021] In addition, mounting protrusions that fit with the tooth root part side may be further formed at the lower end of the inner surface of the second half.

[0022] The tooth root part may be composed of a tooth root main body having a "U"-shaped curvature according to the tooth arrangement, a bottom connecting the inner space of the tooth root main body, and block assembly guide grooves for guiding each tooth fixing block to be assembled according to the tooth arrangement of the tooth root main body.

[0023] At this time, mounting grooves for coupling with the mounting protrusions of the tooth fixing block may be formed in the inner frame of the block assembly guide grooves.

[0024] The jaw support may be composed of a frame body forming the same contour as the contour of the tooth root main body, a housing space configured to house the tooth root main body in the inner space of the frame body, and a bottom body forming the bottom of the frame body.

[0025] At this time, tooth row guide grooves may be formed in the bottom body, where the lower part of the tooth fixing block and the lower part of the mounting protrusion are aligned to maintain the tooth row.

[0026] In addition, a plurality of fastening holes are formed in the bottom body of the jaw support, and a locking bolt is fastened in the vertical direction from the outside to the inside of the bottom body through the fastening holes, so that the gingiva part and the tooth fixing block can be fixed to the jaw support.

[0027] In addition, a locking pin is fastened in the horizontal direction from the outside to the inside of the gingiva body of the gingiva part, and is fixed by sequentially penetrating the gingiva body and the tooth fixing block, and one locking pin can be fastened to each tooth fixing block.

[0028] And a support means is formed so that the tooth fixing blocks adjacent to each other at the bottom of the tooth fixing block are continuously meshed and supported with each other. The support means may include a support leg that extends to one side of the bottom of the tooth fixing block and supports the lower part of the adjacent tooth fixing block, and a support leg insertion groove that depresses the bottom where the support leg contacts and inserts the support leg.

[0029] At this time, only support legs extending in the direction of the center of the tooth row are formed on each of the tooth fixing blocks located at both ends of the tooth row among the tooth fixing blocks, and only support leg insertion grooves are formed on the left and right sides of the tooth fixing block located at the center of the tooth row. When a pair of tooth fixing blocks located at both ends of the tooth row are fixed to the gingiva body using locking pins, the entire tooth fixing blocks can be supported in a chain.

[0030] In addition, in the gingiva part, the gingiva body and the bottom are formed by being divided along the block assembly guide groove. On the outer frame of the block assembly guide groove formed in the gingiva body, support protrusions are formed to support the lower surface of the tooth fixing block so that it does not droop. On the inner frame of the block assembly guide groove formed in the bottom, mounting grooves for coupling with the mounting protrusions of the tooth fixing block are formed, and when the bottom and the gingiva body are coupled, the vertical detachment of the tooth fixing block can be prevented and fixed.

[0031] At this time, the bottom of the gingiva part can be fastened to the bottom body of the jaw support with a locking bolt.

[0032] A root canal length measurement hole penetrating the jaw support, the gingival portion, and the tooth fixing block in the lateral direction is formed, and root canal length measurement can be performed by inserting a measurement rod into the internal space of the tooth fixing block through the root canal length measurement hole.

[0033] At this time, the root canal length measurement hole and the measurement rod may be formed to be coupled one by one per tooth fixing block.

[0034] A conductor penetrating the bottom of the tooth fixing block is installed, and the conductive gel and individual teeth in the internal space between the jaw support and the tooth fixing block can be energized through the conductor.

[0035] A root canal length measurement hole penetrating the gingival portion and the tooth fixing block in the lateral direction is formed, and root canal length measurement can be performed by inserting a measurement rod into the internal space of the tooth fixing block through the root canal length measurement hole.

[0036] At this time, the root canal length measurement hole and the measurement rod may be formed to be coupled one by one per tooth fixing block.

[0037] And, a dental nerve may be formed inside the tooth root in the individual tooth.

[0038] In addition, a tooth crown and a tooth root are formed on the individual tooth, a dentin layer made of a relatively weak material is formed on the tooth crown, and a crown layer made of a relatively strong material may be formed to cover the outside of the dentin layer.

[0039] And, the gingival portion may be made of either silicone or plastic resin.

[0040] And, the dentiforms are respectively connected at the temporomandibular joint portion, and an upper jaw portion and a lower jaw portion that operate to open or close in the vertical direction may be formed.

[0041] According to another aspect of the present invention, there is provided a dental training dental form including: a tooth fixing block in which the tooth roots of individual teeth are detachably coupled; and a tooth stem portion in which each of the tooth fixing blocks is assembled according to the tooth arrangement.

[0042] The tooth fixing block includes a first half assembled outside the tooth row sandwiching an individual tooth and a second half assembled inside the tooth row, and the first half and the second half include an internal space filled with a conductive gel.

[0043] The tooth stem portion includes a tooth stem main body having a "U"-shaped curvature according to the tooth arrangement, a bottom portion connecting the inner space of the tooth stem main body, and a block assembly guide groove penetrating along the "U"-shaped curvature so that each tooth fixing block is assembled according to the tooth arrangement.

[0044] Hook portions protruding outward are respectively formed on the first half and the second half of the tooth fixing block.

[0045] A detachable groove into which the hook portion is detachably coupled is formed in the block assembly guide groove of the tooth stem portion, and a dental training dental form can be provided.

[0046] Here, the hook portion and the detachable groove may be formed in a linear structure extending in the lateral direction.

[0047] The hook portion is formed at the lower portions of the first half and the second half, and an extension blade that extends downward from the hook portion and operates in cooperation with the elastic deformation of the hook portion is integrally formed. A separation space is formed inside the extension blade, and the deformation of the extension blade and the hook portion can be accommodated.

[0048] A mounting protrusion that fits with the tooth stem portion side is further formed at the lower end of the inner surface of the second half, and a mounting groove that engages with the mounting protrusion may be formed in the inner frame of the block assembly guide groove.

Advantages of the Invention

[0049] The present invention forms individual teeth consisting of a crown and a root. On the outer surface of the root, coupling guide protrusions are formed to prevent detachment and guide the coupling direction when coupling with the tooth fixation block side. Inside the root, a dental nerve having the same form as the actual dental nerve is formed, enabling the identification of the dental nerve structure through practice and having the effect of achieving proficiency in nerve treatment capabilities such as dental nerve removal surgery.

[0050] In addition, the present invention can stably fix individual teeth with roots formed using a tooth fixation block so as not to sway according to the tooth arrangement. After practice, only the corresponding individual teeth that need to be replaced can be separated from the fixation block, making it convenient to use, and having an economic effect that the remaining accessories can be recycled.

[0051] In addition, the present invention has the effect of enabling the measurement of the root canal length of individual teeth in nerve treatment practice.

Brief Description of the Drawings

[0052]

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BEST MODE FOR CARRYING OUT THE INVENTION

[0053] Hereinafter, with reference to the accompanying drawings, a dental treatment practice dentiform according to a preferred embodiment will be described in detail. Here, the same reference numerals are used for the same configurations, and detailed descriptions of repeated explanations and known functions and configurations that may obscure the gist of the invention are omitted. Embodiments of the invention are provided to more fully explain the invention to those of ordinary skill in the art. Therefore, the shapes and sizes of the respective elements in the drawings may be exaggerated for clearer explanation.

[0054] FIG. 1 is a perspective view showing an example of using a dental treatment practice dentiform according to an embodiment of the present invention by coupling it to the temporomandibular joint part. Referring to FIG. 1, the dental treatment practice dentiform 4 according to the present invention is connected at the temporomandibular joint part 3, and an upper jaw part 1 and a lower jaw part 2 that operate to open or close in the vertical direction can be formed.

[0055] At this time, by providing an operation structure similar to the human temporomandibular joint to the temporomandibular joint part 3, the training efficiency is improved.

[0056] In addition, the dentiforms 4 forming the upper jaw part 1 and the lower jaw part 2 are formed with the same structure, only the shapes of the teeth in the upper jaw part and the shapes of the teeth in the lower jaw part being different from each other.

[0057] Hereinafter, for convenience of explanation, the configurations of the dentiforms 4 forming the upper jaw part 1 and the lower jaw part 2 are denoted by the same names and reference numerals.

[0058] The dentiform 4 will be described in detail with reference to FIGS. 2 to 7.

[0059] FIG. 2 is an exploded perspective view showing the dentiform according to an embodiment of the present invention. Referring to FIG. 2, the dentiform 4 of the present invention mainly includes individual teeth 41, tooth fixing blocks 43, tooth roots 45, and jaw supports 47.

[0060] The individual teeth 41, tooth fixing blocks 43, tooth roots 45, and jaw supports 47 are formed along the arrangement of human teeth. At this time, the individual teeth 41 are coupled to the tooth fixing blocks 43 in units of one or two to prevent detachment, and each tooth fixing block 43 is coupled to the tooth root 45, and the tooth root 45 is coupled to the jaw support 47 to prevent detachment of each tooth fixing block 43.

[0061] FIGS. 3 and 4 show a configuration in which two individual teeth 41 are coupled to each tooth fixing block 43. However, the number of individual teeth 41 coupled to one tooth fixing block 43 is not limited to this, and one or more individual teeth may be coupled.

[0062] Hereinafter, the individual teeth and the tooth fixing block 43 will be described.

[0063] FIGS. 3a and 3b are assembled perspective views of a tooth fixing block and individual teeth according to an embodiment of the present invention, and FIGS. 4a and 4b are exploded perspective views of a tooth fixing block and individual teeth according to an embodiment of the present invention.

[0064] The tooth fixing block 43 shown in FIGS. 3a to 4b forms an internal space 433 in which the tooth roots of the individual teeth 41 are detachably coupled, and the internal space 433 provides a case structure filled with a conductive gel for measuring the root canal length.

[0065] The tooth fixing block 43 is composed of a first half body 431 assembled outside the tooth row with individual teeth 41 sandwiched therebetween and a second half body 432 assembled inside the tooth row.

[0066] One side of each of the first half body 431 and the second half body 432 is open, and the interior has a housing structure. However, an internal space 433 is formed by the openings of the first half body 431 and the second half body 432 facing each other and being joined. At this time, the internal space 433 is filled with a conductive gel and simultaneously provides a space for accommodating the tooth roots 412 of the individual teeth 41.

[0067] At this time, tooth fixing holes 434 for covering and fixing the outer surfaces of the individual teeth 41 are formed in the upper frame 435 of the internal space 433 in the first half body 431 and the second half body 432.

[0068] The tooth fixing holes 434 are respectively formed in a split manner on the sides of the first half body 431 and the second half body 432, but can be formed and manufactured to closely adhere to the outer shape of the individual teeth 41. At this time, the tooth fixing holes 434 can be formed and manufactured in a tapered shape with a wide upper part and a narrow lower part.

[0069] For example, the tooth fixing block 43 can be manufactured from a synthetic resin material that is easy to mold and produce using a mold.

[0070] At this time, a male-female coupling structure that is easy to disassemble and assemble can be provided between the first half body 431 and the second half body 432. For this purpose, protrusion coupling parts 437 having a male-female coupling structure can be formed on the first half body 431 and the second half body 432.

[0071] At this time, the protrusion coupling parts 437 can be formed on the open frame of the internal space 433.

[0072] At this time, as shown in FIGS. 4a to 4b, the upper frame 435 and the lower frame 436 among the frames around the internal space 433 can be formed wider. Further, protrusion coupling parts 437 can be formed on the upper frame 435 and the lower frame 436 that provide such a large area.

[0073] At this time, on the protrusion coupling part 437, a column-shaped protrusion can be protrudingly formed on the frame surface of either one side of the first half body 431 and the second half body 432, and a protrusion groove into which the protrusion is fitted can be formed on the frame surface of the opposite side. At this time, the diameter of the protrusion groove is formed smaller than the diameter of the protrusion, and they can be press-fitted into each other.

[0074] The protrusion of the protrusion coupling part 437 can be manufactured in the form of a cylinder or a square prism. Further, the protrusion groove can be formed as a circular groove or a square groove.

[0075] At this time, a coupling guide groove 434a for fixing the individual teeth 41 in alignment with the tooth row can be formed in the tooth fixing hole 434.

[0076] The coupling guide groove 434a can be formed on the inner surface of the tooth fixing hole 434. Further, on the individual teeth 41, coupling guide protrusions 413 that are aligned with the coupling guide groove 434a can be formed.

[0077] The planar shape of the tooth fixing block 43 can be manufactured in a fan shape in which the corners gradually widen from the inner side direction to the outer side direction of the tooth row. Further, the tooth fixing block 43 includes a first half body 431 assembled outside the tooth row with the individual teeth 41 sandwiched therebetween, and a second half body 432 assembled inside the tooth row.

[0078] That is, the tooth fixing block 43 is manufactured in a fan shape that gradually widens from the second half body 432 side to the first half body 431 side.

[0079] At this time, a mounting protrusion 438 may be formed to protrude at the lower end of the inner surface of the second half body 432. At this time, the mounting protrusion 438 is fitted to the gingival part 45, which will be described later. It contacts and is pressed against the lower part of the gingival part 45, and serves to prevent detachment by fixing the movement of the tooth fixing block 43 between the jaw supports 47.

[0080] At this time, the outer shape and internal structure of the tooth fixing block 43 may be changed according to the number of individual teeth 41 to be coupled.

[0081] For example, FIGS. 3 and 4 show an example of coupling two individual teeth 41 as a set, and show an example of forming two tooth fixing holes 434 as a set to cover and fix the outer surfaces of the individual teeth 41 on the upper frames 435 of the first half body 431 and the second half body 432 of the tooth fixing block 43.

[0082] However, the number of such tooth fixing holes 434 may be configured in various forms of one or two or more according to the number of individual teeth 41 to be coupled.

[0083] FIG. 5 is a perspective view showing an individual tooth according to an embodiment of the present invention.

[0084] Referring to FIG. 5, the individual tooth 41 is formed to include a crown 411 and a root 412. At this time, the root 412 has a form in which the crown side is wide and gradually tapers toward the lower part. On the outer surface of the root 412, coupling guide protrusions 413 are formed to prevent detachment when coupling to the tooth fixing block 43 side and guide the coupling direction.

[0085] At this time, the coupling guide protrusions 413 may be formed one by one in the front-rear direction of the individual tooth 41.

[0086] Also, a dental nerve 414 may be formed inside the tooth root 412 of the individual tooth 41. At this time, the shapes of the tooth crown 411 and the tooth root 412 of the individual tooth 41 can be freely deformed according to the forms such as molars and incisors. In particular, the tooth root 412 can be freely deformed within the range allowed by the internal space 433 of the tooth fixing block 43.

[0087] By manufacturing the dental nerve 414 in the same form and texture as the nerve of an actual human tooth, a trainee can perform dental treatment practice such as nerve structure identification and nerve removal under the same conditions as in reality.

[0088] In addition, a tooth crown 411 and a tooth root 412 are formed on the individual tooth 41. An ivory layer made of a relatively weak material is formed on the tooth crown 411, and a crown layer made of a relatively strong material is formed to cover the outside of the ivory layer, thereby providing a feeling similar to that of an actual tooth.

[0089] FIG. 6 is a perspective view showing that a tooth fixing block is coupled according to the tooth row of the dental arch portion according to an embodiment of the present invention.

[0090] As shown in FIG. 6, each tooth fixing block 43 to which one or two individual teeth 41 are coupled is arranged according to the tooth row and assembled according to the tooth arrangement of the dental arch portion 45. At this time, the size and form of each tooth fixing block 43 may vary depending on the shape of the individual tooth 41 to be coupled, but the same names and reference numerals are used for the detailed configurations having the same functions and structures.

[0091] The dental arch portion 45 includes a dental arch main body 451 having a "U" - shaped curvature according to the tooth arrangement, a bottom portion 452 connecting the inner space of the dental arch main body 451, and a block assembly guide groove 453 for guiding each tooth fixing block 43 to be assembled according to the tooth arrangement of the dental arch main body 451.

[0092] At this time, a through groove having a "U" - shaped curvature is formed in the block assembly guide groove 453, and a mounting groove 454 (see FIG. 7) for coupling with the mounting protrusion 438 of the tooth fixing block may be formed in the inner frame of the block assembly guide groove 453.

[0093] At this time, the tooth root part 45 can be manufactured by being molded from a synthetic resin material.

[0094] After that, the tooth root part 45 and the tooth fixing block 43 are fixedly installed on the jaw support 47.

[0095] The jaw support 47 can be made of a metal material and serves as a base structure for coupling the dentiform 4 to the temporomandibular joint part 3 of the upper jaw part 1 or the lower jaw part 2.

[0096] Such a jaw support 47 may be composed of a frame body 471 that forms the same contour as the contour of the tooth root part 45, a receiving space 472 configured to receive the tooth root part 45 in the inner space of the frame body 471, and a bottom body 473 that forms the bottom of the frame body 471.

[0097] At this time, an upper part of the tooth root part 45 may protrude from the frame body 471, and a lower part of the tooth fixing block 43 and a lower part of the mounting protrusion 438 may be aligned on the bottom body 473, and a tooth row guide groove 474 may be formed so as to maintain the tooth row.

[0098] At this time, the tooth row guide groove 474 may be manufactured in the form of a stepped groove having a "U" - shaped curvature similar to the shape of the block assembly guide groove 453 of the tooth root part 45.

[0099] At this time, a plurality of fastening holes 475 may be formed in the bottom body 473 of the jaw support 47.

[0100] At this time, female thread lines capable of screw fastening may be formed in each of the fastening holes 475. A locking bolt (not shown) may be fastened vertically from the outside to the inside of the bottom body 473 through the fastening hole 475, and the tooth stem part 45 and the tooth fixing block 43 may be fixed to the jaw support 47.

[0101] The tooth stem part may be made of either silicone or plastic resin as a material having the texture of a tooth stem.

[0102] FIG. 7 is a bottom perspective view showing the locking structure of a tooth fixing block according to an embodiment of the present invention.

[0103] Referring to FIG. 7, a locking pin P is fastened horizontally from the outside to the inside of the tooth stem body 451 of the tooth stem part 45 so as to sequentially penetrate and fix the tooth stem part 45 and the tooth fixing block 43, and one locking pin P may be fastened to each of the tooth fixing blocks 43 one by one.

[0104] At this time, the locking pin P is fastened so as to be inserted into the bottom side body of the tooth fixing block 43 without penetrating the internal space 433 of the tooth fixing block 43.

[0105] FIG. 8 is a bottom exploded perspective view showing the locking structure of a tooth fixing block of a dental treatment practice dentiform according to another embodiment of the present invention, and FIG. 9 is a bottom assembled perspective view showing the locking structure of a tooth fixing block of a dental treatment practice dentiform according to another embodiment of the present invention.

[0106] Referring to FIGS. 8 and 9, support means 439 may be formed such that the tooth fixing blocks 43 adjacent to each other at the bottom of the tooth fixing block 43 are continuously meshed with and supported by each other.

[0107] At this time, the support means 439 may include a support leg 439a that extends to one side of the bottom of the tooth fixing block 43 and supports the lower part of the adjacent tooth fixing block 43, and a support leg insertion groove 439b that depresses the bottom in contact with the support leg 439a so that the support leg 439a can be inserted.

[0108] At this time, among the tooth fixing blocks 43, only the support legs 439a extending in the central direction of the dental arch are formed on each tooth fixing block 43 located at both ends of the dental arch, and only the support leg insertion grooves 439b are formed on the left and right sides of the tooth fixing block 43 located at the center of the dental arch. When a pair of tooth fixing blocks 43 located at both ends of the dental arch are fixed to the tooth root part 45 using the locking pin P, the entire tooth fixing block 43 can be supported in a chain-like manner.

[0109] Figs. 10 to 13 are views showing the locking structure of the tooth fixing block of the dental treatment practice dentiform according to still another embodiment of the present invention.

[0110] Referring to Figs. 10 to 13, the tooth root part 45 may be divided into a tooth root main body 451 and a bottom part 452 along the block assembly guide groove 453.

[0111] At this time, on the outer frame of the block assembly guide groove 453 formed in the tooth root main body 451, as shown in Fig. 10, each support protrusion 451a for supporting the lower surface of the tooth fixing block 43 so as not to sag may be formed.

[0112] And on the inner frame of the block assembly guide groove 453 formed in the bottom part 452, as shown in Fig. 12, each mounting groove 454 for coupling with the mounting protrusion 438 of the tooth fixing block may be formed.

[0113] When the bottom part 452 and the tooth root main body 451 are coupled, the support protrusion 451a supports the lower surface of one side of the tooth fixing block 43, and the mounting groove 454 presses and supports the mounting protrusion 438 on the other side of the tooth fixing block 43, so that the vertical detachment of the tooth fixing block 43 can be prevented by the coupling structure of the tooth root part 45.

[0114] At this time, the bottom part 452 of the tooth root part 45 may be fastened and fixed to the bottom body 473 of the jaw support 47 with a locking bolt.

[0115] FIG. 14 is an exemplary view for explaining the root canal length measurement structure of an individual tooth according to the present invention.

[0116] Referring to FIG. 14, a root canal length measurement hole 48a penetrating the jaw support 47, the tooth stem portion 45, and the tooth fixing block 43 in the lateral direction is formed, and the root canal length can be measured by inserting a measurement rod 48c into the internal space 433 of the tooth fixing block 43 through the root canal length measurement hole 48a.

[0117] Here, the root canal length measurement means measuring the length from the uppermost part of the tooth to the end of the root, and a root canal length measuring instrument is used for such root canal length measurement. Most electronic root canal length measuring instruments utilize the fact that human tissues are composed of components having electrical characteristics, and by measuring the differences in electrical characteristics such as resistance and impedance, the exact end of the root canal can be detected.

[0118] At this time, the root canal length measurement hole 48a and the measurement rod 48c may be formed so as to be coupled one by one per tooth fixing block 43.

[0119] FIG. 15 is another exemplary view for explaining the root canal length measurement structure of an individual tooth according to the present invention.

[0120] Referring to FIG. 15, a conductor 48b penetrating the bottom of the tooth fixing block 43 is installed, and the jaw support 47, the conductive gel in the internal space 433 of the tooth fixing block 43, and the individual tooth 41 can be formed to be energized through the conductor 48b.

[0121] FIGS. 16 and 17 are still other exemplary views for explaining the root canal length measurement structure of an individual tooth according to the present invention.

[0122] Referring to FIGS. 16 and 17, a root canal length measurement hole 48a penetrating the tooth stem portion 45 and the tooth fixing block 43 in the lateral direction is formed, and the root canal length can be measured by inserting a measurement rod 48c into the internal space 433 of the tooth fixing block 43 through the root canal length measurement hole 48a.

[0123] At this time, the root canal length measurement hole 48a and the measurement rod 48c may be formed so as to be coupled one by one per tooth fixing block 43.

[0124] FIG. 18 is an assembled cross-sectional view showing a locking structure of a tooth fixing block according to another embodiment of the present invention, FIG. 19 is a perspective view showing the tooth fixing block structure of FIG. 18, FIG. 20 is a perspective view showing the tooth root structure of FIG. 18, FIG. 21 is a perspective view showing an individual tooth fixing block of FIG. 18, FIG. 22 is an enlarged view of a main part showing the hook structure of FIG. 21, FIG. 23 is a perspective view showing an assembled state of the tooth fixing block and the tooth root part of FIG. 18, and FIG. 24 is a bottom perspective view showing an assembled state of the tooth fixing block and the tooth root part of FIG. 18.

[0125] Referring to FIGS. 18 to 24, a locking structure in which the tooth fixing block 43 and the tooth root part 45 can be attached and detached by a hook structure is provided.

[0126] The present invention includes a tooth fixing block 43 to which the tooth roots in individual teeth are detachably coupled, and a tooth root part 45 to which the tooth fixing blocks 43 are assembled according to the tooth arrangement.

[0127] At this time, the tooth fixing block 43 has an assembly structure of a first half body 431 assembled outside the tooth row with an individual tooth sandwiched therebetween and a second half body 432 assembled inside the tooth row. At this time, an internal space 433 filled with a conductive gel is formed in the first half body 431 and the second half body 432.

[0128] The tooth root part 45 includes a tooth root main body 451 having a "U" - shaped curvature according to the tooth arrangement, a bottom part 452 connecting the inner space of the tooth root main body 451, and a block assembly guide groove 453 penetrating along the "U" - shaped curvature so that each tooth fixing block 43 can be assembled according to the tooth arrangement.

[0129] At this time, hooks 431a and 432 protruding outward are respectively formed on the first half body 431 and the second half body 432 of the tooth fixing block 43, and a detachable groove 456 to which the hooks 431a and 432a are detachably coupled may be formed in the block assembly guide groove 453 of the tooth root portion 45.

[0130] At this time, the detachable grooves 456 are respectively formed at the opposing positions of the hooks 431a and 432a.

[0131] And the hooks 431a and 432a and the detachable grooves 456 may be formed in a linear structure extending in the lateral direction.

[0132] And the hooks 431a and 432a are formed at the lower portions of the first half body 431 and the second half body 432, and extension vanes 431b and 432b that extend to the lower portions of the hooks 431a and 432a and whose elastic deformation operates in cooperation are integrally formed, and separation spaces 431c and 432c are formed inside the extension vanes 431b and 432b so that the deformation of the extension vanes 431b and 432b and the hooks 431a and 432a can be accommodated.

[0133] At this time, a mounting protrusion 438 that fits with the tooth root portion 45 side is further formed at the lower end of the inner surface of the second half body 432, and a mounting groove 454 that couples with the mounting protrusion 438 may be formed in the inner frame of the block assembly guide groove 453.

[0134] By forming each mounting groove 454 that couples with the mounting protrusion 438 of the tooth fixing block 43 in the inner frame of the block assembly guide groove 453 formed in the tooth root portion 45, the mounting protrusion 438 of the tooth fixing block 43 is placed on the mounting groove 454, and the vertical detachment of the tooth fixing block 43 can be prevented by the coupling structure of the tooth root portion 45. To separate the tooth fixing block 43 from the tooth root portion 45, when the pair of opposing extension vanes 431b and 432b are simultaneously folded inward, the pair of hooks 431a and 432a come out of the detachable grooves 456 on the tooth root portion 45 side, and there is an advantage that the coupling structure can be easily released.

[0135] As described above, in the present invention, individual teeth composed of a crown and a root are formed. On the outer surface of the root, coupling guide protrusions are formed to prevent detachment during coupling with the tooth fixation block side and guide the coupling direction. Inside the root, a dental nerve having the same form as an actual dental nerve is formed, enabling identification of the dental nerve structure through practice and having the effect of achieving proficiency in nerve treatment capabilities such as dental nerve removal surgery.

[0136] In addition, in the present invention, individual teeth with roots formed using a tooth fixation block can be stably fixed in accordance with the tooth arrangement so as not to sway. After practice, only the corresponding individual teeth that need to be replaced can be separated from the fixation block, making it convenient to use, and the remaining accessories have the economic effect of being recyclable.

[0137] In addition, the present invention has the effect of enabling measurement of the root canal length of individual teeth during nerve treatment practice.

[0138] The present invention has been described with reference to an embodiment shown in the accompanying drawings, which is merely illustrative, and those with ordinary knowledge in the relevant technical field will understand that various modifications and equivalent other embodiments are possible from now on. Therefore, the true scope of protection of the present invention should be determined only by the appended claims.

Explanation of Reference Numerals

[0139] 1 Upper jaw 2 Lower jaw 3 Temporomandibular joint 4 Dentiform 41 Individual tooth 411 Crown 412 Root 413 Coupling guide protrusion 414 Dental nerve 43 Tooth fixation block 431 First half 432 Second half 433 Internal space 434 Tooth fixation hole 434a Coupling guide groove 435 Upper frame 436 Lower frame 437 Protrusion coupling part 438 Mounting protrusion 439 Supporting means 439a Supporting leg 439b Supporting leg insertion groove 45 Gingival part 451 Gingival body 451a Support protrusion 452 Bottom part 453 Block assembly guide groove 454 Mounting groove 47 Jaw support 471 Frame body 472 Accommodation space 473 Bottom body 474 Tooth row guide groove 475 Fastening hole 48a Root canal length measurement hole 48b Conductor 48c Measuring rod P Locking pin

Claims

1. Individual teeth forming a dental crown and a tooth root; A tooth fixing block to which the tooth root in the individual tooth is detachably coupled; and A jaw support to which the tooth fixing block is fixedly installed and coupled to a temporomandibular joint on either the upper jaw or the lower jaw; including The tooth fixing block consists of a first half assembled outside the dental arch sandwiching the individual tooth and a second half assembled inside the dental arch. An internal space filled with a conductive gel is formed in the first half and the second half. Tooth fixing holes are formed in the upper frame of the internal space to cover and fix the outer surface of the individual tooth. Protrusion coupling parts enabling male-female coupling between the first half and the second half are formed in the upper and lower frames of the internal space. A dental training dentiform.

2. Individual teeth forming a dental crown and a tooth root; A tooth fixing block to which the tooth root in the individual tooth is detachably coupled; A tooth stem portion to which the tooth fixing block is assembled according to the tooth arrangement; and A jaw support to which the tooth stem portion and the tooth fixing block are fixedly installed and coupled to a temporomandibular joint on either the upper jaw or the lower jaw; including The tooth fixing block consists of a first half assembled outside the dental arch sandwiching the individual tooth and a second half assembled inside the dental arch. An internal space filled with a conductive gel is formed in the first half and the second half. Tooth fixing holes are formed in the upper frame of the internal space to cover and fix the outer surface of the individual tooth. Protrusion coupling parts enabling male-female coupling between the first half and the second half are formed in the upper and lower frames of the internal space. A dental training dentiform.

3. The dental training dentiform according to any one of Claims 1 and 2, characterized in that coupling guide protrusions for guiding the coupling direction while preventing detachment are formed on the outer surface of the tooth root in the individual tooth when coupled to the tooth fixing block side.

4. The dental training dentiform according to any one of Claims 1 and 2, characterized in that an internal space is formed inside the tooth fixing block, and a clearance space is formed between the tooth root and the inner surface of the internal space.

5. The dental training dentiform according to Claim 4, characterized in that the internal space of the tooth fixing block is filled with a conductive gel for measuring the root canal length.

6. The dental training dentiform according to any one of claims 1 and 2, characterized in that a coupling guide groove for aligning coupling guide protrusions formed on individual teeth is formed on the inner surface of the tooth fixing hole.

7. The dental training dentiform according to any one of claims 1 and 2, characterized in that the planar shape of the tooth fixing block is manufactured in a fan shape in which the angle gradually widens from the inner side to the outer side of the tooth row.

8. The dental training dentiform according to any one of claims 1 and 2, characterized in that a mounting protrusion that fits with the tooth root part side is further formed at the lower end of the inner surface of the second half body.

9. The tooth root part comprises a tooth root main body having a "U" - shaped curvature according to the tooth arrangement, a bottom part connecting the inner space of the tooth root main body, and a block assembly guide groove for guiding each tooth fixing block to be assembled according to the tooth arrangement. The dental training dentiform according to claim 2 is characterized by this.

10. The dental training dentiform according to claim 9, characterized in that a mounting groove for coupling with the mounting protrusion of the tooth fixing block is formed on the inner frame of the block assembly guide groove.

11. The jaw support comprises a frame body forming the same contour as the contour of the tooth root part, a housing space configured to house the tooth root part in the inner space of the frame body, and a bottom body forming the bottom of the frame body. The dental training dentiform according to claim 2 is characterized by this.

12. The dental training dentiform according to claim 11, characterized in that a tooth row guide groove is formed on the bottom body, in which the lower part of the tooth fixing block and the lower part of the mounting protrusion of the tooth fixing block are aligned so as to maintain the tooth row.

13. The dental training dentiform according to claim 11, characterized in that a plurality of fastening holes are formed in the bottom body, and a locking bolt is fastened in the vertical direction from the outside to the inside of the bottom body through the fastening holes to fix the tooth root part and the tooth fixing block to the jaw support.

14. The dental training dentiform according to claim 11, characterized in that a locking pin is fastened in the horizontal direction from the outside to the inside of the tooth root part, passes through the tooth root part and the tooth fixing block in sequence and is fixed, and one locking pin is fastened for each tooth fixing block.

15. Support means is formed so that the tooth fixing blocks adjacent to each other at the bottom of the tooth fixing block are continuously meshed and supported with each other. The support means includes a support leg that extends to one side of the bottom of the tooth fixing block and supports the lower part of the adjacent tooth fixing block, and a support leg insertion groove that recesses the bottom where the support leg contacts and allows the support leg to be inserted. The dental practice dentiform according to any one of Claims 1 and 2, characterized in that it consists of these.

16. In each tooth fixing block located at both side ends of the tooth row among the tooth fixing blocks, only support legs extending in the central direction of the tooth row are formed. In the tooth fixing block located at the center of the tooth row, only support leg insertion grooves are formed on both the left and right sides. When a pair of tooth fixing blocks located at both side ends of the tooth row are fixed to the tooth root part using locking pins, the entire tooth fixing block is supported in a chain-like manner. The dental practice dentiform according to Claim 14, characterized in that it is like this.

17. At the tooth root part, the tooth root main body and the bottom are divided and formed along the block assembly guide groove. On the outer frame of the block assembly guide groove formed in the tooth root main body, support protrusions are formed to support the lower surface of the tooth fixing block so that it does not sag. On the inner frame of the block assembly guide groove formed in the bottom, mounting grooves that are combined with the mounting protrusions of the tooth fixing block are formed. The dental practice dentiform according to Claim 9, characterized in that it is fixed so as to prevent the vertical detachment of the tooth fixing block when the bottom and the tooth root main body are combined.

18. The bottom is fastened to the bottom body of the jaw support with a locking bolt. The dental practice dentiform according to Claim 17, characterized in that it is like this.

19. A root canal length measurement hole that penetrates the jaw support, the tooth root part, and the tooth fixing block in the lateral direction is formed. Root canal length measurement is performed by inserting a measurement rod into the internal space of the tooth fixing block through the root canal length measurement hole. The dental practice dentiform according to Claim 2, characterized in that it is like this.

20. The root canal length measurement hole and the measurement rod are formed so that one of each is combined per tooth fixing block. The dental practice dentiform according to Claim 19, characterized in that it is like this.

21. A conductor penetrating the bottom of the tooth fixing block is installed, and the conductive gel and individual teeth in the internal space of the jaw support and the tooth fixing block are energized through the conductor. The dental training dentiform according to claim 1 or 2, characterized in that.

22. A root canal length measurement hole penetrating the gingival part and the tooth fixing block laterally is formed, and the root canal length is measured by inserting a measuring rod into the internal space of the tooth fixing block through the root canal length measurement hole. The dental training dentiform according to claim 2, characterized in that.

23. The root canal length measurement hole and the measuring rod are formed so as to be coupled one by one per tooth fixing block. The dental training dentiform according to claim 22, characterized in that.

24. A dental nerve is formed inside the root of each individual tooth. The dental training dentiform according to any one of claims 1 and 2, characterized in that.

25. Each individual tooth is formed with a tooth crown and a tooth root. The tooth crown is formed with a dentin layer. The outside of the dentin layer is covered with a crown layer. The material of the crown layer is higher in strength than the material of the dentin layer. The dental training dentiform according to any one of claims 1 and 2, characterized in that.

26. The gingival part is made of either silicone or plastic resin. The dental training dentiform according to claim 2, characterized in that.

27. The dental training dentiforms are connected at the temporomandibular joint part, and an upper jaw part and a lower jaw part are formed so as to operate to open or close in the vertical direction. The dental training dentiform according to any one of claims 1 and 2, characterized in that.

28. The gingival part includes a gingival body having a "U" - shaped curvature according to the tooth arrangement, a bottom connecting the inner space of the gingival body, and a block assembly guide groove penetrating along the "U" - shaped curvature so that each tooth fixing block can be assembled according to the tooth arrangement. Hook-shaped protrusions are formed on the outer sides of the first half and the second half of the tooth fixing block, respectively. Detachable grooves for detachably coupling the hooks are formed in the block assembly guide groove of the gingival part. The dental training dentiform according to claim 2, characterized in that.

29. The dental training dentiform according to claim 28, wherein the hook and the detachable groove are formed in a linear structure extending in the lateral direction.

30. The dental training dentiform according to claim 28, wherein the hook is formed at the lower portions of the first half body and the second half body, an extension vane extending downward from the lower portion of the hook and integrally formed with the elastic deformation of the hook operating in cooperation therewith, a separation space being formed inside the extension vane, and the deformation of the extension vane and the hook being accommodated therein.

31. The dental training dentiform according to claim 28, wherein a mounting projection for fitting with the gingiva side is further formed at the lower end of the inner surface of the second half body, and a mounting groove for coupling with the mounting projection is formed in the inner frame of the block assembly guide groove.

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