Dental treatment practice tooth model and method of manufacturing the same

Abstract

The present invention relates to a tooth model for dental treatment practice and a method of manufacturing the same, and more particularly to a tooth model for dental treatment practice, characterized by including a root part formed of a transparent material, a nerve canal formed in an inside of the root part, and a crown part formed on an upper side of the root part, and by forming a coating layer coated with an opaque material on an inside surface of the nerve canal to display the nerve canal formed in the inside of the root part to the outside. According to the present invention, the opaque material coating is colored on the inside surface of the nerve canal formed in the inside of the root part of the tooth model formed of the transparent material, thereby enabling the nerve canal to be displayed to the outside of the root part of the tooth model.

Description

Technical Field

[0001] This invention relates to dental models, and more particularly to dental models for dental practice that are identical in shape and structure to the actual dental nerve canal and can be used for practical training, as well as a method for manufacturing the same. Background Technology

[0002] Typically, when bacteria, such as cavities, invade the dental pulp chamber and root canal of a tooth by crossing the dentin of the dentinal tubules and causing pain, nerve treatment is performed on the tooth.

[0003] This type of nerve treatment can be considered a restorative treatment performed through the following process: when a dental nerve is diagnosed, a hole is drilled in the tooth using a dental drill, and the tooth tissue and blood vessels of the dental nerve are removed using a nerve removal instrument. The root canal cavity is then disinfected, and a replacement material is used to fill and plug the root canal cavity and hole.

[0004] Among these, neurotherapy can only prevent the recurrence of pain and preserve the natural tooth to the greatest extent possible by minimizing damage to the dentin and completely removing the dental nerve. Therefore, extensive internships are required to master neurotherapy techniques.

[0005] However, dental educational institutions, dental hospitals, and dental conferences currently lack sufficient dental models that demonstrate the internal neural structure of teeth for such neurotherapy internships. As a result, most internships involve observing neurotherapy procedures and relying on recorded audiovisual materials or ordinary dental models, leading to reduced internship efficiency.

[0006] In other words, with ordinary dental models, since they are only made to simulate the shape of the teeth or oral cavity, it is impossible to practice direct treatment of the nerves formed inside the teeth. Even if they are used for practice, it is impossible to correctly identify the nerve structures and directly perform surgery to remove the dental nerves. Therefore, there are many difficulties in mastering nerve treatment.

[0007] To address these issues, tooth models have traditionally been created by filling the interior with wax to simulate the nerve tubes that form inside the root canals of teeth.

[0008] However, because conventional dental models use wax to fill the nerve canal, sticky wax adheres to the endofile after nerve resection, making it difficult to cleanly remove the nerve.

[0009] Furthermore, previous dental models could not adequately represent the shape of the nerve tube formed inside the root canal of the tooth. Therefore, they were not only unsuitable for practical use, but also had the problem of not being able to clearly distinguish the nerve tube when observing the dental model from the outside.

[0010] Patent documents

[0011] Patent Document 1: Korean Patent Publication No. 10-2019-0143108 (published on December 30, 2019) Summary of the Invention

[0012] Technical issues

[0013] The present invention, proposed to solve the above problems, aims to provide a dental model for dental treatment practice and a method for manufacturing the same: an opaque material is applied to the inner surface of a nerve tube formed inside the root of a dental model made of a transparent material, thereby enabling the nerve tube to be displayed outside the root of the dental model.

[0014] Furthermore, the object of the present invention is to provide a dental model for dental treatment practice and a method for manufacturing the same, wherein the neural tube is hollow inside, making it easy to conduct neural treatment practice.

[0015] Furthermore, the present invention aims to provide a dental model for dental treatment practice and a method for manufacturing the same: by applying a non-water-soluble or insoluble resin coating to the inner surface of the nerve canal, it is easy to confirm whether the nerve has been completely removed after the nerve resection operation, and the treatment status can be clearly distinguished after the use of irrigation solution.

[0016] Problem-solving methods

[0017] The present invention, proposed to achieve the above objectives, is a tooth model for dental treatment practice. The tooth model is characterized by including a root portion formed of a transparent material, in which a hollow nerve canal is formed; and a crown portion formed on the upper side of the root portion, in which an opaque coating layer is formed on the inner side of the nerve canal, so that the nerve canal formed inside the root portion is visible to the outside.

[0018] The present invention is characterized in that the coating is composed of non-water-soluble or insoluble substances.

[0019] The present invention is characterized in that the coating is a resin-based synthetic resin agent.

[0020] The invention is characterized in that the crown portion includes an ivory portion formed of a soft material and an enamel portion formed of a hard material on the upper part of the ivory portion.

[0021] The present invention is characterized in that the aforementioned ivory portion and the aforementioned enamel portion are manufactured by one of milling, plastic injection molding, and three-dimensional (3D) printing.

[0022] The invention is characterized in that an engraved height difference portion that curves downward toward the inner bottom of the mounting groove is formed on the lower outer surface of the tooth root portion inside the insertion mounting groove, and the mounting groove is formed on the tooth-shaped portion on which the tooth model is mounted.

[0023] Furthermore, the method for manufacturing a dental model for dental treatment practice according to the present invention includes: a step of manufacturing a transparent tooth root portion, wherein a hollow nerve tube is formed inside the tooth root portion; a step of injecting an opaque coating material into the inner side of the nerve tube formed inside the tooth root portion; a step of spraying air into the inner side of the nerve tube into which the coating material is injected and diffusing the coating material, thereby coating the inner side of the nerve tube; and a step of curing the coating material applied to the inner side of the nerve tube for a predetermined time to form a coating layer of predetermined thickness on the inner side of the nerve tube.

[0024] The present invention is characterized in that, in the step of forming a coating layer of a specified thickness on the inner surface of the aforementioned neural tube, the coating material applied to the inner surface of the neural tube is applied to the surface of the inner surface of the neural tube by one of the following methods: flame heat treatment, high frequency induction heat treatment, laser heat treatment, ultraviolet (UV) curing, and infrared (IR) curing.

[0025] Invention Effects

[0026] The present invention has the following effect: by coloring the inner surface of the nerve tube formed inside the root of a tooth model made of transparent material with an opaque material coating, the nerve tube can be displayed on the outside of the root of the tooth model.

[0027] Furthermore, the present invention has the following advantages: because the inside of the neural tube is hollow, it is easy to conduct neurotherapy practice.

[0028] Furthermore, the present invention has the following effects: by applying a non-water-soluble or insoluble resin coating to the inner surface of the nerve canal, it is easy to confirm whether the nerve has been completely removed after the nerve resection operation, and the treatment status can be clearly distinguished after the use of irrigation solution. Attached Figure Description

[0029] Figure 1 A cross-sectional view of a dental model used for dental treatment practice according to an embodiment of the present invention is shown.

[0030] Figure 2 Example photographs are provided to illustrate a dental model used in dental treatment practice according to an embodiment of the present invention.

[0031] Figure 3 An example photograph is shown to illustrate the state of a dental model for dental treatment practice according to an embodiment of the present invention mounted on the tooth profile.

[0032] Figure 4 A perspective view and a cross-sectional view of a dental model used for dental treatment practice according to another embodiment of the present invention are provided.

[0033] Figure 5 This is a flowchart illustrating a method for manufacturing a dental model for dental treatment practice according to an embodiment of the present invention.

[0034] Explanation of reference numerals in the attached figures

[0035] 10: Toothed part; 11: Mounting groove

[0036] 100: Tooth model; 110: Tooth root

[0037] 111: Neural tube; 111a: Coating layer

[0038] 112: Height difference section; 120: Tooth crown section

[0039] 121: Ivory section 122: Enamel section Detailed Implementation

[0040] Hereinafter, a preferred embodiment of the dental model for dental treatment practice of the present invention will be described in detail with reference to the accompanying drawings.

[0041] Figure 1 To illustrate a cross-sectional view of a dental model used in dental treatment practice according to an embodiment of the present invention, Figure 2 Example photographs of dental models used in dental treatment practice according to embodiments of the present invention are shown. Figure 3 An example photograph is shown to illustrate the state of a dental model for dental treatment practice according to an embodiment of the present invention mounted on the tooth profile.

[0042] Reference Figures 1 to 3 In a preferred embodiment of the present invention, the dental model for dental treatment practice is a dental model 100 for dental treatment practice that is manufactured to be similar in size and shape to actual teeth.

[0043] The tooth model 100 of the present invention is composed of a tooth root portion 110 and a tooth crown portion 120.

[0044] The root portion 110 is made of a transparent material so that the interior can be observed from the outside. Furthermore, a hollow nerve tube 111 is formed inside the root portion 110 of the tooth model 100.

[0045] In this case, in order to make the nerve tube 111 formed inside the tooth root 110 of the tooth model 100 visible to the outside, a thin coating layer 111a with an opaque material coating is formed on the inner surface of the nerve tube 111.

[0046] Preferably, the coating forming the coating layer 111a is a resin-based synthetic resin agent composed of non-water-soluble or insoluble substances that are not easily soluble in water or alcohol.

[0047] In this way, an opaque material coating is applied to the inner surface of the nerve canal 111 formed inside the root 110 of the tooth model 100, which is made of a transparent material, so that the nerve canal 111 is visible outside the root 110 of the tooth model 100.

[0048] Furthermore, since the interior of the neural tube 111 is hollow, it has the advantage of being easy to use in neurotherapy practice.

[0049] The crown portion 120 is formed on the upper side of the root portion 110 and may include: an ivory portion 121 formed of a soft material; and an enamel portion 122 formed of a hard material on the upper part of the ivory portion 121.

[0050] The ivory portion 121 is preferably formed from a resin-based synthetic resin agent and can be manufactured by one of milling, plastic injection molding, and 3D printing, and is not limited to the manufacturing means listed above.

[0051] Furthermore, the enamel portion 122 can be formed from materials such as resin, zirconium oxide, and ceramic, and can be manufactured by one of milling, plastic injection molding, and 3D printing. In this case, it is not limited to the manufacturing methods listed above.

[0052] The crown 120 can also be made of a transparent material, in which case the upper side can be perforated.

[0053] Figure 4 A perspective view and a cross-sectional view of a dental model for dental treatment practice according to another embodiment of the present invention are shown.

[0054] Reference Figure 4 In the dental model 100 used for dental treatment practice, an incised height difference portion 112 can also be formed on the lower outer surface of the root portion 110.

[0055] More specifically, a mounting groove 11 for inserting the tooth root portion 110 is formed in the tooth-shaped portion 10 on which the tooth model 100 of the present invention is mounted, and a step may be formed on the inner side of the lower end of the mounting groove 11.

[0056] That is, an engraved height difference portion 112, which curves downward toward the inner bottom of the mounting groove 11 formed in the tooth-shaped portion 10, is formed on the lower outer side of the tooth root portion 110. Thus, when the tooth root portion 110 is inserted into the inner side of the mounting groove 11, the mounting direction of the tooth model 100 can be displayed, and the tooth model 100 mounted on the tooth-shaped portion 10 can be easily fixed.

[0057] The above-described method of joining the toothed portion 10 and the tooth model 100 is an example and is not limited to one method. The tooth model 100 can be joined to the toothed portion 10 in various other ways.

[0058] Figure 5 This is a flowchart illustrating a method for manufacturing a dental model for dental treatment practice according to an embodiment of the present invention.

[0059] Reference Figure 5 In the method for manufacturing a tooth model according to a preferred embodiment of the present invention, firstly, a tooth root 110 made of transparent material is manufactured inside the hollow nerve tube 111.

[0060] The tooth root 110 can be manufactured by one of the following methods: milling, plastic injection molding, or 3D printing.

[0061] Next, an opaque coating is applied to the inside of the nerve canal 111 formed inside the tooth root 110.

[0062] Then, the coating is sprayed into the inside of the nerve tube 111 and spread evenly so that the coating is thinly applied to the inner surface of the nerve tube 111.

[0063] Finally, the coating applied to the inner surface of the nerve canal 111 is cured for a specified time to form a coating layer 111a of a specified thickness on the inner surface of the nerve canal 111, thereby completing the tooth model.

[0064] In this case, the coating applied to the inner surface of the nerve tube 111 to form a coating layer 111a of a specified thickness on the inner surface of the nerve tube 111 can be applied to the surface of the inner surface of the nerve tube 111 by, for example, flame heat treatment, high frequency induction heat treatment, laser heat treatment, ultraviolet (UV) curing and infrared (IR) curing, but is not limited to the methods listed above.

[0065] The opaque material coating is used to color the inner surface of the nerve tube 111 formed inside the root 110 of the tooth model 100, which is made of transparent material.

[0066] When the nerve is removed using water and a drill, the coating 111a, which is colored onto the nerve canal 111, is composed of a resin-based synthetic resin agent consisting of non-water-soluble or insoluble substances that are not easily soluble in water or alcohol, and is therefore not easily wiped off, thus improving durability.

[0067] The present invention has been described above based on preferred embodiments, but the technical concept of the present invention is not limited thereto. Those skilled in the art will clearly understand that modifications or alterations can be made within the scope of the claims, and such modifications or alterations are all included in the appended claims.

Claims

1. A dental model for dental treatment practice, characterized in that, The above-mentioned tooth models include: The root of the tooth is made of a transparent material, and a hollow nerve canal is formed inside; and The crown portion is formed on the upper side of the aforementioned tooth root portion. The aforementioned neural tube is hollow inside, and its inner surface is coated with an opaque material of a predetermined thickness, consisting of a non-water-soluble or insoluble substance that is not easily soluble in water or alcohol. This makes the neural tube formed inside the root of the tooth visible on the outside. The coating layer is formed by curing the inner surface of the nerve tube to a specified thickness, thereby keeping the inside of the nerve tube hollow while coloring the inner surface of the nerve tube from the top to the bottom to a specified thickness.

2. The dental model for dental treatment practice according to claim 1, characterized in that, The above coatings are resin-based synthetic resin agents.

3. The dental model for dental treatment practice according to claim 1, characterized in that, The aforementioned crown portion includes: The ivory portion is formed from a soft material; and The enamel portion is formed of a hard material on the upper part of the aforementioned ivory portion.

4. The dental model for dental treatment practice according to claim 3, characterized in that, The aforementioned ivory and enamel parts are manufactured by one of milling, plastic injection molding, or 3D printing.

5. The dental model for dental treatment practice according to claim 1, characterized in that, On the lower outer side of the tooth root portion inside the insertion mounting groove, an engraved height difference portion is formed that curves downward toward the inner bottom of the mounting groove. The mounting groove is formed on the tooth-shaped portion on which the tooth model is mounted.

6. A method for manufacturing a dental model for dental treatment practice, used to manufacture the dental model for dental treatment practice as described in claim 1, characterized in that, include: (a) The first step of manufacturing a transparent tooth root is to form a hollow nerve tube inside the tooth root. (b) Step 2: Applying an opaque coating to the inside of the nerve canal formed inside the root of the tooth. (c) Step 3, in which air is injected into the nerve tube into which the above-mentioned coating is applied and the coating is diffused, so that the coating is applied to the inner surface of the nerve tube; and (d) Step 4: Curing the coating applied to the inner surface of the nerve tube for a specified time to form a coating layer of a specified thickness on the inner surface of the nerve tube.

7. The method for manufacturing a dental model for dental treatment practice according to claim 6, characterized in that, In step (d) above, the coating applied to the inner surface of the nerve tube is applied to the surface of the inner surface of the nerve tube by one of the following methods: flame heat treatment, high frequency induction heat treatment, laser heat treatment, ultraviolet curing, and infrared curing.

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