Dental model set and multi-layered root canal therapy practice model
By using 3D printing materials of different materials and colors to construct tooth models using tooth model kits, the problems of low simulation level and unclear simulation training results in existing technologies are solved, achieving a higher degree of simulation and clear simulation training effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- PEKING UNIV SCHOOL OF STOMATOLOGY
- Filing Date
- 2024-06-28
- Publication Date
- 2026-06-02
AI Technical Summary
Existing simulation training models have low simulation accuracy of teeth, and the simulation training results are unclear, making it difficult for teachers to score.
Tooth model kits were constructed using 3D printing materials of different materials and colors, including teaching tooth models, pulpotomy practice models, root canal treatment practice models, and multi-layer root canal treatment practice models. Different parts of the tooth were distinguished by materials and colors, which improved the simulation level and clarified the simulation training results.
The improved simulation level of the dental model makes the simulation training results clearer, and teachers can more accurately evaluate the students' operational performance.
Smart Images
Figure CN118587973B_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of medical device technology, specifically relating to a dental model kit and a multi-layered root canal treatment practice model. Background Technology
[0002] Before entering clinical practice, dental students need a certain understanding of dental anatomy. To avoid risks during clinical practice, they should practice on extracted teeth or simulated dental instruments during their early internships. Currently, representative, high-precision simulated dental models can be created by extracting teeth with normal anatomical structures from cone-beam computed tomography (CBCT). CBCT, as a three-dimensional imaging method, is widely used in dentistry. It can display the three-dimensional structure of dental anatomy, providing a wealth of structural information about teeth through non-invasive measurements, and providing a large amount of anatomical information about healthy teeth while obtaining imaging information of lesions. Existing digital technologies can perform three-dimensional reconstruction processing on CBCT information to obtain dental model files with three-dimensional anatomical structures, and the emergence and improvement of 3D printing technology has made it possible to create simulated teeth using these models. However, the simulated practice models obtained by 3D printing technology currently have low simulation accuracy, affecting the realistic experience of simulation training. Furthermore, after students perform treatment operations using the simulated practice models, the treatment effect on the teeth cannot be clearly demonstrated, making it difficult for teachers to grade the results of simulation training.
[0003] Therefore, there is a need in this field for a dental model kit with a higher degree of simulation and more clearly defined simulation results. Summary of the Invention
[0004] To address the problems existing in the prior art, a tooth model kit and a multi-layered root canal treatment practice model are proposed. This tooth model kit and multi-layered root canal treatment practice model have a higher degree of simulation and more clearly display the simulation training results.
[0005] This application provides the following solutions.
[0006] In a first aspect, this application provides a dental model kit, including: a teaching dental model, a pulpotomy practice model, a root canal treatment practice model, and a multi-layer root canal treatment practice model;
[0007] The hard tissue portion of the teaching tooth model is made of colorless transparent 3D printing material, while the soft tissue portion is made of colored 3D printing material.
[0008] The hard tissue portion of the pulpotomy practice model is made of opaque 3D printing material, while the pulp portion is made of colored 3D printing material that is different in color from the hard tissue portion of the pulpotomy practice model.
[0009] The crown of the root canal treatment practice model is made of opaque 3D printing material, the root of the root canal treatment practice model is made of colorless transparent 3D printing material, and the pulp of the root canal treatment practice model is made of colorless transparent colloidal printing material.
[0010] The crown of the multilayer root canal treatment practice model is made of opaque 3D printing material, the root is made of colorless transparent 3D printing material, the root of the multilayer root canal treatment practice model has a semi-transparent colored layer of preset thickness near the pulp, and the pulp is made of colorless transparent colloidal printing material.
[0011] In some possible embodiments, the dental model kit further includes: a dental arch model;
[0012] The dental arch model is made of transparent soft rubber material and has tooth positions. The tooth positions have preset root grooves, which are used to fix the teaching tooth model and display the root of the teaching tooth model.
[0013] In some possible embodiments, the dental model kit further includes: a negative dental arch model;
[0014] The negative dental model is made of rubber-like material and has tooth positions set in it; the negative dental model is used to fill plaster after the practice dental module is placed in it to obtain a plaster dental model.
[0015] In dental plaster models, the roots of practice teeth are covered by plaster, while the crowns are exposed. Practice teeth models include pulpotomy practice models, root canal treatment practice models, or multi-layer root canal treatment practice models.
[0016] In some possible embodiments, the preset thickness is 0.375mm-0.8mm.
[0017] In some possible embodiments, the preset thickness is 0.5 mm.
[0018] In some possible embodiments, the hard tissue portion of the teaching tooth model, the hard tissue portion of the pulpotomy practice model, the crown and root portion of the root canal treatment practice model, and the crown and root portion of the multi-layer root canal treatment practice model all have a Shore hardness of 80HD-100HD.
[0019] The Shore hardness of the soft tissue portion of the teaching tooth model and the pulp portion of the pulp resection practice model are both between 30HD and 40HD.
[0020] The hardness of the colorless, transparent gel-like printing material is lower than that of the soft tissue portion of the teaching tooth model and the pulp portion of the pulpotomy practice model.
[0021] Secondly, this application provides a multi-layered root canal treatment practice model, including: a crown, a root, and a pulp.
[0022] The crown of the multilayer root canal treatment practice model is made of opaque 3D printing material, the root is made of colorless transparent 3D printing material, and a semi-transparent colored layer of preset thickness is set near the pulp of the root. The colored layer is different in color from the rest of the root. The pulp is made of colorless transparent colloidal printing material.
[0023] In some possible embodiments, the preset thickness is 0.375mm-0.8mm.
[0024] In some possible embodiments, the preset thickness is 0.5 mm.
[0025] In some possible embodiments, the Shore hardness of both the crown and root of the multi-layer root canal treatment practice model is between 80HD and 100HD.
[0026] This application provides a tooth model kit, in which a teaching tooth model is used to clearly demonstrate the hard and soft tissue parts of a tooth, a pulpotomy practice model is used to assist in practicing pulpotomy, a root canal treatment practice model is used to assist in practicing access cavity preparation and root canal filling, and a multi-layer root canal treatment practice model is used to assist in practicing access cavity preparation and root canal filling. The pulpotomy practice model, root canal treatment practice model, and multi-layer root canal treatment practice model provided in this application provide a higher degree of simulation of tooth tissue by using different printing materials to represent different parts of the tooth, and the use of different colored printing materials to represent different parts of the tooth makes the simulation training results more clearly displayed.
[0027] Other advantages of this application will be explained in more detail with reference to the following description and figures.
[0028] It should be understood that the above description is merely an overview of the technical solution of this application, so as to enable a clearer understanding of the technical means of this application and thus allow for its implementation in accordance with the contents of the specification. To make the above and other objects, features, and advantages of this application more apparent and understandable, specific embodiments of this application are illustrated below. Attached Figure Description
[0029] By reading the detailed description of the exemplary embodiments below, those skilled in the art will understand the advantages and benefits described herein, as well as other advantages and benefits. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0030] Figure 1 A schematic diagram of a teaching tooth model provided for an embodiment of this application;
[0031] Figure 2 A schematic diagram of a pulpotomy practice model provided for an embodiment of this application;
[0032] Figure 3 A schematic diagram of a root canal treatment practice model provided in an embodiment of this application;
[0033] Figure 4 A schematic diagram of a multi-layered root canal treatment practice model provided in an embodiment of this application;
[0034] Figure 5a A frontal view of a dental arch model provided in an embodiment of this application;
[0035] Figure 5b A side view of a dental arch model provided in an embodiment of this application;
[0036] Figure 6 This is a schematic diagram of a dental arch model provided in an embodiment of this application. Detailed Implementation
[0037] Exemplary embodiments of this application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of this application and to fully convey the scope of this application to those skilled in the art.
[0038] In the description of embodiments of this application, it should be understood that terms such as "comprising" or "having" are intended to indicate the presence of the disclosed features, numbers, steps, actions, components, portions, or combinations thereof in this specification, and do not exclude the possibility of the presence of one or more other features, numbers, steps, actions, components, portions, or combinations thereof. The terms "first," "second," etc., are used only for ease of description to distinguish identical or similar technical features and should not be construed as indicating or implying the relative importance or number of these technical features. Thus, a feature defined by "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of embodiments of this application, unless otherwise stated, the term "multiple" means two or more.
[0039] Unless otherwise stated, " / " signifies "or," for example, A / B can mean either A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. For ease of description, spatial relation terms such as "below," "under," "above," and "upper" may be used here to describe the relationship between one element or feature shown in the accompanying drawings and other elements or features. It will be understood that these spatial relation terms are intended to include directions other than those depicted in the accompanying drawings for devices in use or operation.
[0040] It should also be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0041] The dental model kit provided in this application includes: Figure 1 The shown teaching tooth model, such as Figure 2 The pulpotomy practice model shown is as follows: Figure 3 The root canal treatment practice model shown and as follows Figure 4 The model shown is a practice model of multi-layered root canal treatment.
[0042] like Figure 1 As shown, the hard tissue portion 11 of the teaching tooth model provided in this application embodiment is made of colorless transparent 3D printing material, while the soft tissue portion 12 is made of colored 3D printing material. It should be noted that because the hard tissue portion 11 of the teaching tooth model in this application is made of colorless transparent 3D printing material, the soft tissue portion of the tooth model composed of colored 3D printing material can be directly observed using the teaching tooth model provided in this application. This allows for direct observation of the dental pulp structure, facilitating the user's understanding and learning of the dental pulp structure.
[0043] like Figure 2 As shown, the hard tissue portion 21 of the pulpotomy practice model provided in this application embodiment is made of opaque 3D printing material, while the pulp portion 22 is made of colored 3D printing material that differs in color from the hard tissue portion 21. It should be noted that the pulpotomy practice model can assist users in practicing pulpotomy. Specifically, users can remove a portion of the pulp in the pulpotomy model. Because the pulp portion 22 is colored differently from the hard tissue portion 21, after the user completes the pulpotomy, the instructor can clearly observe the removed pulp portion and the remaining pulp portion, thereby enabling a more accurate evaluation of the user's removal results.
[0044] like Figure 3As shown, the crown 31 of the root canal treatment practice model is made of opaque 3D printing material, the root 32 is made of colorless transparent 3D printing material, and the pulp 33 is made of colorless transparent gel-like printing material. It should be noted that users can practice access cavity preparation and root canal filling using the root canal treatment model. Specifically, users can perform access cavity preparation on the practice model and then fill it with root canal medication. Since root canal medication is usually a colored, opaque material, the filled root canal can be clearly observed through the transparent pulp 33, allowing instructors to provide more accurate evaluations of the user's work.
[0045] like Figure 4 As shown, the crown 41 of the multilayer root canal treatment practice model is made of opaque 3D printing material, the root 42 of the multilayer root canal treatment practice model is made of colorless transparent 3D printing material, a semi-transparent colored layer 43 of preset thickness is provided near the pulp of the root of the multilayer root canal treatment practice model, the colored layer is different in color from other parts of the root, and the pulp 44 of the multilayer root canal treatment practice model is made of colorless transparent colloidal printing material.
[0046] It should be noted that in this application, the user can practice access cavity preparation and root canal treatment using a multi-layered root canal treatment practice model. When practicing root canal preparation, the user needs to remove a layer of hard tissue from the root portion 42, close to the pulp. After the user completes the root canal preparation, the instructor can observe the remaining semi-transparent colored layer 43 of a predetermined thickness on the cross-section of the root portion 42 to determine whether the thickness of the removed root tissue is evenly distributed on the cross-section. This allows the instructor to provide a more accurate evaluation of the user's procedure. In practical applications, the predetermined thickness of the semi-transparent colored layer 43 is 0.375mm-0.8mm, preferably 0.5mm.
[0047] It should be noted that the dental model kits provided in this application can be used in the field of teaching dental procedures, and can also be used to assist in the evaluation of the treatment effect of patients' teeth in clinical practice. This application does not limit the scope of the application. For example, root canal treatment can be performed using the dental model kit corresponding to the patient's teeth, and the effect of root canal treatment can be evaluated based on the dental model kit after the root canal treatment.
[0048] Therefore, the tooth model kit provided in this application embodiment includes a teaching tooth model for clearly demonstrating the hard and soft tissue parts of the tooth, a pulpotomy practice model for assisting in practicing pulpotomy, a root canal treatment practice model for assisting in practicing access cavity preparation and root canal filling, and a multi-layer root canal treatment practice model for assisting in practicing access cavity preparation and root canal filling. The pulpotomy practice model, root canal treatment practice model, and multi-layer root canal treatment practice model provided in this application embodiment, by using different printing materials to represent different parts of the tooth, achieve a higher degree of simulation of tooth tissue. Furthermore, using different colored printing materials to represent different parts of the tooth makes the simulation training results more clearly displayed.
[0049] As one possible implementation, the dental model kit provided in this application also includes a dental arch model. The dental arch model is made of a transparent, soft rubber material and has tooth positions; each tooth position has a pre-set root groove, which is used to fix the teaching dental model and to expose the root portion of the teaching dental model. Figure 5a and Figure 5b As shown, the dental arch model in this application can clearly display the shape of the teaching tooth model it fixes and the pulp structure inside the teaching tooth model.
[0050] As one possible implementation, the dental model kit also includes a negative dental arch model. For example... Figure 6 As shown, the negative dental arch model is made of a rubber-like material and includes tooth positions. The negative dental arch model is used to fill plaster after the practice tooth module is placed in it, obtaining a plaster dental arch model. In the plaster dental arch model, the roots of the practice teeth are covered by plaster, while the crowns are exposed. Practice tooth models include pulpotomy practice models, root canal treatment practice models, or multi-layer root canal treatment practice models.
[0051] It should be noted that the hard tissue portion 21 of the pulpotomy practice model, the crown portion 31 of the root canal treatment practice model, and the crown portion 41 of the multi-layer root canal treatment practice model are all made of opaque materials. Therefore, after the above-mentioned practice tooth models are placed into the dental arch negative model to make a dental arch plaster model, the user cannot observe the internal condition of the tooth model through the appearance. This is conducive to simulating the real tooth environment and testing the user's understanding of tooth structure.
[0052] In the embodiments of this application, the Shore hardness of the hard tissue portion of the teaching tooth model, the hard tissue portion of the pulpotomy practice model, the crown and root portions of the root canal treatment practice model, and the crown and root portions of the multi-layer root canal treatment practice model can be 80HD-100HD, for example, 85HD. The Shore hardness of the soft tissue portion of the teaching tooth model and the pulp portion of the pulpotomy practice model can be 30HD-40HD, for example, 35HD. In practical applications, the colorless transparent colloidal printing material used in this application is used to simulate the soft tissue of the dental pulp, and the hardness of the colorless transparent colloidal printing material is lower than the hardness of the soft tissue portion of the teaching tooth model and the pulp portion of the pulpotomy practice model.
[0053] In summary, the tooth model kit provided in this application includes a teaching tooth model for clearly demonstrating the hard and soft tissue parts of a tooth, a pulpotomy practice model for assisting in practicing pulpotomy, a root canal treatment practice model for assisting in practicing access cavity preparation and root canal filling, and a multi-layer root canal treatment practice model for assisting in practicing access cavity preparation and root canal filling. The pulpotomy practice model, root canal treatment practice model, and multi-layer root canal treatment practice model provided in this application, using different printing materials to represent the pulp, crown, and root of the tooth, achieve a higher degree of simulation of tooth tissue. Furthermore, in the multi-layer root canal treatment practice model, the addition of a pre-thickness translucent colored layer at the root can more clearly display the simulation training results.
[0054] Based on the tooth model kit provided in the above embodiments, this application also provides a multi-layer root canal treatment practice model.
[0055] like Figure 4 As shown in the embodiment of this application, the multi-layered root canal treatment practice model includes a crown, a root, and a pulp. The crown of the multi-layered root canal treatment practice model is made of opaque 3D printing material, the root is made of colorless transparent 3D printing material, and a semi-transparent colored layer of predetermined thickness is provided near the pulp of the root. The colored layer is different in color from other parts of the root. The pulp is made of colorless transparent colloidal printing material.
[0056] As one possible implementation, the preset thickness of the translucent colored layer in this embodiment is 0.375mm-0.8mm. As an example, this preset thickness is 0.5mm. In practical applications, the Shore hardness of the crown and root of the multi-layered root canal treatment practice model can be between 80HD and 100HD.
[0057] In summary, the multi-layered root canal treatment practice model provided in this application is used to assist in practicing pulpotomy and root canal preparation. The multi-layered root canal treatment practice model provided in this application uses different printing materials to compose the pulp, crown, and root portions of a tooth, resulting in a higher degree of simulation of tooth tissue. Furthermore, the use of a pre-defined thickness of semi-transparent colored layer in the root portion of the multi-layered root canal treatment practice model allows for a clearer display of the simulation training results.
[0058] While illustrative embodiments of this application have been detailed and described in the accompanying drawings and foregoing description, they should be considered illustrative rather than restrictive. It should be understood that only certain exemplary embodiments have been shown and described, and all variations and modifications intended to protect within the spirit and scope of the claimed invention are intended to be protected. It should be understood that while the use of terms such as preferred, preferred, or more preferred in the above description to indicate that such described features may be more desirable, it may not be necessary, and implementations without these features may be contemplated, for example, within the scope of the invention defined by the appended claims. When reading the claims, the use of terms such as “a,” “an,” “at least one,” or “at least a portion” is not intended to limit the claim to one item unless specifically stated otherwise in the claim. When the language “at least a portion” and / or “a portion” is used, an item may include a portion and / or the entire item unless specifically stated otherwise.
[0059] While the spirit and principles of this application have been described above with reference to several specific embodiments, it should be understood that this application is not limited to the disclosed specific embodiments, and the division of aspects does not imply that features in these aspects cannot be combined. This application is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims
1. A dental model kit, characterized in that, include: Demonstration tooth models, pulpotomy practice models, root canal treatment practice models, and multi-layer root canal treatment practice models; The hard tissue portion of the teaching tooth model is made of colorless transparent 3D printing material, while the soft tissue portion is made of colored 3D printing material. The hard tissue portion of the pulpotomy practice model is made of opaque 3D printing material, while the pulp portion of the pulpotomy practice model is made of colored 3D printing material that is different in color from the hard tissue portion of the pulpotomy practice model. The crown of the root canal treatment practice model is made of opaque 3D printing material, the root of the root canal treatment practice model is made of colorless transparent 3D printing material, and the pulp of the root canal treatment practice model is made of colorless transparent colloidal printing material. The crown of the multilayer root canal treatment practice model is made of opaque 3D printing material, the root portion is made of colorless transparent 3D printing material, and a semi-transparent colored layer of preset thickness is provided near the pulp portion of the root portion. The pulp portion of the multilayer root canal treatment practice model is made of colorless transparent colloidal printing material. The preset thickness of the semi-transparent colored layer is 0.375mm-0.8mm. After the user completes root canal preparation on the multilayer root canal treatment practice model, the residue of the semi-transparent colored layer is used to determine whether the thickness of the root tissue removed by the user is evenly distributed on the cross section.
2. The dental model kit according to claim 1, characterized in that, The dental model kit also includes: a dental arch model; The dental arch model is made of transparent soft rubber material and has tooth positions; each tooth position has a preset root groove, which is used to fix the teaching tooth model and expose the root of the teaching tooth model.
3. The dental model kit according to claim 1, characterized in that, The dental model kit also includes: a negative dental arch model; The negative dental model is made of rubber-like material and has tooth positions; the negative dental model is used to fill plaster after a practice dental model is placed in it to obtain a plaster dental model. In the dental plaster model, the root portion of the practice tooth model is covered by plaster, while the crown portion of the practice tooth model is exposed. The practice tooth model includes the pulpotomy practice model, the root canal treatment practice model, or the multi-layer root canal treatment practice model.
4. The dental model kit according to claim 1, characterized in that, The preset thickness is 0.5mm.
5. The dental model kit according to claim 1, characterized in that, The hard tissue portion of the teaching tooth model, the hard tissue portion of the pulpotomy practice model, the crown and root portion of the root canal treatment practice model, and the crown and root portion of the multi-layer root canal treatment practice model all have a Shore hardness of 80HD-100HD. The Shore hardness of the soft tissue portion of the teaching tooth model and the pulp portion of the pulpotomy practice model are both between 30HD and 40HD. The hardness of the colorless, transparent colloidal printing material is lower than that of the soft tissue portion of the teaching tooth model and the pulp portion of the pulpotomy practice model.
6. A multi-layered root canal treatment practice model, characterized in that, include: Crown, root, and pulp; The crown of the multilayer root canal treatment practice model is made of opaque 3D printing material, the root portion is made of colorless transparent 3D printing material, and a semi-transparent colored layer of preset thickness is provided near the pulp portion of the root portion. The pulp portion of the multilayer root canal treatment practice model is made of colorless transparent colloidal printing material. The preset thickness of the semi-transparent colored layer is 0.375mm-0.8mm. After the user completes root canal preparation on the multilayer root canal treatment practice model, the residue of the semi-transparent colored layer is used to determine whether the thickness of the root tissue removed by the user is evenly distributed on the cross section.
7. The multi-layered root canal treatment practice model according to claim 6, characterized in that, The preset thickness is 0.5mm.
8. The multi-layered root canal treatment practice model according to claim 6, characterized in that, The Shore hardness of both the crown and root of the multi-layer root canal treatment practice model is between 80HD and 100HD.