Dental training model and dental training device
By designing a double-layer dental training model, using ultraviolet development technology and chromatic aberration design, the problems of high costs and different standards in dental preparation training are solved, and the rapid, implicit judgment and standardized training effects are achieved, and students' operating skills are improved.
Patent Information
- Application Number
- CN202422013898.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-08-19
AI Technical Summary
In the prior art, tooth preparation training is high, the frequency is low, and the training standards are different, making it difficult to achieve unified and standardized. In addition, there is a lack of effective judgment methods for dental preparation training at caries points, resulting in limited improvement of doctor skills.
A dental training model is designed, using a double-layer structure dental body, the outer tooth is consistent with the enamel hardness, and the inner tooth is consistent with the dentin hardness. The simulated caries and normal areas are made of fluorescent materials that can be developed under ultraviolet light and have chromatic difference. Combined with a plane and three-dimensional dental preparation area, ultraviolet light is used to determine the grinding effect.
It realizes rapid and implicit judgment of teeth preparation results, improves training effect and standardization, reduces training costs, and improves students' operating skills and judgment abilities.
Smart Images
Figure CN223140275U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of dental training, and particularly relates to a dental training model and a dental training device. Background Art
[0002] During the tooth preparation process by dentists in the stomatology department, the tooth substance of patients is directly ground until the tooth substance meets the preparation standard for subsequent treatment. It can be seen that tooth preparation is actually a basic skill, and the quality of the preparation results will have an important impact on the fit and stability of the restoration. However, on the one hand, in traditional tooth preparation training, extracted teeth are generally used as training objects. Since extracted teeth are produced from the human body and are teeth that have become detached from the alveolar sockets of the upper and lower jaws due to trauma, specialized tooth extraction, periodontal disease, natural exfoliation, etc., the acquisition channels are extremely single and the output is often not high. This results in a high cost of tooth preparation training, and consequently a reduction in the training frequency. Also, because the tooth preparation process is an operation that improves with practice, the reduction in the training frequency is bound to lead to the inability to effectively improve the dentist's tooth preparation level. Moreover, due to students not forming correct preparation habits during the learning process, it is easy for the tooth preparation not to meet the standards during the actual treatment process after becoming a doctor. On the other hand, during actual tooth preparation training, how to clarify the standardization of the tooth preparation results has also become one of the difficulties in the field of tooth preparation. Especially in the tooth preparation training for carious lesions, since carious lesions are divided into five categories, the tooth preparation depths and areas for each category are different. How to achieve unified, standardized, and serialized training has also become a problem. In the past, after students completed tooth preparation, they handed it over to the teacher for comments. This is not only highly subjective but also the comment standards are inconsistent. During tooth preparation examinations, it relies on expensive tooth inspection equipment to complete, but the purchase cost of such machines, which is often in the millions, is obviously not conducive to popularization in daily training. Therefore, it is urgent to solve. Summary of the Invention
[0003] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and provide a dental training model that is easy to operate and can achieve the purpose of quickly and implicitly judging the tooth preparation results through unified standards.
[0004] To achieve the above purpose, the utility model adopts the following technical solutions:
[0005] Dental training model, including a dental body, characterized in that: the dental body is a double-layer structure, and along the tooth preparation direction, an outer dental body with hardness and thickness matching those of enamel and an inner dental body with hardness matching that of dentin are arranged in sequence; an operation pattern corresponding to a caries lesion point is also arranged on the outer wall of the outer dental body, and the contour of the operation pattern matches the contour of the corresponding caries lesion point in the top view perspective; the dental body area that is bounded by the operation pattern and sinks to a specified depth forms a simulated caries area, and the dental body area outside the operation pattern is the normal area. At least one of the normal area and the simulated caries area is made of a fluorescent material that can be developed under ultraviolet light, and when both the normal area and the simulated caries area are fluorescent materials, there is a color difference between the fluorescent colors of the normal area and the simulated caries area.
[0006] Preferably, in the normal area, at least one of the inner dental body and the outer dental body is made of a fluorescent material that can be developed under ultraviolet light, and there is a color difference between the fluorescent color of the corresponding dental body and the fluorescent color of the simulated caries area.
[0007] Preferably, it further includes a core dental body as the pulp cavity located in the innermost layer, and the core dental body in the normal area is made of a fluorescent material that can be developed under ultraviolet light. At this time, the thickness of the inner dental body covering the core dental body matches the thickness of dentin; when only the inner dental body among the inner dental body and the outer dental body in the normal area is a fluorescent material, there are color differences between the fluorescent colors of the core dental body, the simulated caries area, and the inner dental body. When only the outer dental body is a fluorescent material, there are color differences between the fluorescent colors of the core dental body, the simulated caries area, and the outer dental body; when both the inner dental body and the outer dental body are fluorescent materials, there are color differences between the fluorescent colors of the core dental body, the simulated caries area, the inner dental body, and the outer dental body.
[0008] Preferably, a cavity serving as the pulp cavity is provided inside the inner dental body. At this time, along the tooth preparation direction, the thickness of the inner dental body matches the thickness of dentin.
[0009] Preferably, a dental training device, characterized in that: it includes an operation board, and the operation board is divided into a planar tooth preparation area and a three-dimensional tooth preparation area; the planar tooth preparation area is a three-layer composite board structure, and sequentially includes an upper board with thickness and hardness matching those of enamel from top to bottom, a middle board with thickness and hardness matching those of dentin, and a lower board with thickness matching the depth of the pulp cavity. A closed-loop planar pattern that matches the tooth contour in the top view state and / or the caries lesion point contour in the top view state is arranged on the upper board surface of the upper board; the above-mentioned dental training model is fixed at the three-dimensional tooth preparation area.
[0010] Preferably, the three-dimensional tooth preparation area is located in the middle area of the operation board, and the planar tooth preparation area is located on both sides of the three-dimensional tooth preparation area or covers the three-dimensional tooth preparation area.
[0011] Preferably, a card slot for the dental body to be inserted, which is concave on the operation board and matches the bottom of the dental body, is provided; screw holes are arranged at the bottom of the dental body, and after the fixing screw penetrates the operation board from bottom to top, the dental body is screwed and fastened on the operation board.
[0012] Preferably, the dental body is integrally formed on the operation board.
[0013] Preferably, there are color differences among the upper layer board, the middle layer board and the lower layer board visually, or the upper layer board, the middle layer board and the lower layer board are made of three fluorescent materials that can be developed under ultraviolet light and have color differences.
[0014] Preferably, a trial grinding pattern is arranged at the edge of the operation board. The trial grinding pattern is in the shape of a U or a corner groove, and the groove end of the trial grinding pattern is located on the edge of the operation board.
[0015] The beneficial effects of the present utility model are as follows:
[0016] 1) During actual operation, on the one hand, if the dental model is simply changed into a multi-layer structure, and even includes separate coloring of the carious area, since students can visually distinguish the depth of tooth preparation, it will not achieve the purpose of tooth preparation training, because this is similar to an "open-book exam"; on the other hand, it is also necessary to take into account the purpose of standardizing and quickly distinguishing the results of tooth preparation, so as to facilitate the teacher to uniformly judge the grinding results of the carious area.
[0017] Therefore, the present utility model provides a dental training model, which not only uses the dental body as a simulated tooth; at the same time, at least two layers of structures are arranged, that is, the inner dental body analogous to dentin and the outer dental body analogous to enamel, and the simulated carious area and the normal area are designed in a hidden discrimination state. In this way, during actual operation, students can directly prepare the carious points at the established area at the operation pattern; at the same time, since the depth requirements of the five types of carious points are different, the grinding depth completely depends on the training process; when the training is over, the ultraviolet lamp can be directly used for irradiation on-site. At this time, because the normal area and the simulated carious area show different colors under ultraviolet light, by checking whether there is still residue in the simulated carious area, the effectiveness of the tooth preparation result can be determined. Without ultraviolet lamp irradiation, there is no color difference visually, which obviously ensures the purpose of hiding the test points under normal conditions and avoids students taking an open-book exam directly, achieving multiple benefits at one stroke.
[0018] Thus, it can be seen that since the grinding of carious spots in the tooth preparation examination is a separate grinding, there should be a set of standard conclusion judgment methods. In the present invention, the simulated carious area (i.e., the carious area that should be removed theoretically at the tooth body) can be used as a separate area, or a groove can be made in advance on the tooth body, and then the material is filled in later to form a simulated carious area, or the simulated carious area can be integrally formed on the tooth body initially. The simulated carious area should have a color difference from the dentin and enamel under ultraviolet light to clarify whether the grinding of the simulated carious area is standard, or to see where the misoperation points are (the color spots of the simulated carious area remaining indicate that it has not been ground clean, which is the misoperation point), so as to focus on and improve pertinently during later training, and can effectively improve the training effect.
[0019] 2) The inner tooth body and the outer tooth body can also be distinguished from each other by fluorescent colors to enhance the students' cognition and enable the students to achieve the purpose of deeply memorizing the depth of enamel and dentin imperceptibly during daily training.
[0020] 3) The design of the core tooth body can be selected as appropriate according to the actual situation, aiming to exercise the students' grinding awareness and avoid the situation of damaging the pulp cavity due to excessive grinding of the dentin represented by the inner tooth body.
[0021] 4) Further, the dental training model can also be combined with a planar training model, that is, a combination of three-dimensional and planar, so that the students can first tentatively operate and grind the test pattern, and then grind the planar pattern after feeling it is okay, and finally grind the simulated carious area on the dental training model, so as to achieve the purpose of training from shallow to deep.
[0022] 5) The dental training model can be integrally formed on the operation board, or can be installed on the operation board in a split and detachable manner. The split and detachable method can, according to the students' subject bias, specifically select specific types of carious spots for targeted training, and the training effect is more significant. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 is a schematic structural diagram of the outer tooth body;
[0024] Figure 2 is a schematic structural diagram of the inner tooth body;
[0025] Figure 3 is a three-dimensional structural schematic diagram of the dental training device;
[0026] Figure 4 is a schematic cross-sectional structural diagram of one of the matching relationships between the dental training model and the operation board.
[0027] The actual corresponding relationship between the reference numerals and component names of the present invention is as follows:
[0028] 10 - Tooth body; 11 - Outer tooth body; 11a - Operation pattern; 12 - Inner tooth body; 13 - Cavity;
[0029] 20 - Operation plate; 21 - Upper plate; 22 - Middle plate; 23 - Lower plate; 24 - Plane pattern; 25 - Trial grinding pattern;
[0030] 30 - Fixing screw. Detailed implementation mode
[0031] For the convenience of understanding, here in combination with Figures 1-4 the following further describes the specific structure and working mode of the present utility model:
[0032] The implementation structure of the present utility model is shown in reference to Figure 3 and is composed of a dental training model and a matching operation plate 20. They can be of an integral structure or a detachable structure such as fixing screws 30. When assembling with fixing screws 30, it is preferred to arrange corresponding card slots on the operation plate 20 so that the bottom of the dental training model can be snapped in, and then as Figure 4 shown to achieve the effect of threaded fixation.
[0033] For the dental training model, as Figures 1-4 shown, it includes a tooth body 10 as the main body. The tooth body 10 is made in imitation of human teeth, and the hardness and thickness of the outer tooth body 11 match those of dental enamel, and the hardness of the inner tooth body 12 matches that of dentin. During use, the tooth body 10 is of an integral structure, Figures 1-2 but for the convenience of understanding, a split treatment is made. When using a tooth body 10 with a pulp cavity as Figure 4 shown, at this time along the tooth preparation direction, a cavity 13 can be provided inside the inner tooth body 12, and the thickness of the inner tooth body 12 matches that of dentin to ensure the simulation effect. When the tooth body 10 needs to be assembled with fixing screws 30, a certain thickness should be left at the bottom of the tooth body 10 to drill a threaded hole, which will not be elaborated here.
[0034] It should be noted that preferably, both the outer tooth body 11 and the inner tooth body 12 should be made of a fluorescent material that can be developed under ultraviolet light, and there is a color difference between the two, so that when holding an ultraviolet lamp, it is possible to quickly distinguish whether the outer tooth body 11 has been ground completely or partially as required to the standard degree. Of course, when the pulp cavity is represented by a solid core tooth body, the core tooth body can also be represented by a third fluorescent color, so as to quickly distinguish under ultraviolet light whether the grinding is too deep and affects the pulp cavity, and the operation is very convenient. At this time, combined with the fourth fluorescent color at the simulated caries area at the operation pattern 11a, the expected training effect can be maximally achieved.
[0035] The operation panel 20 is in the shape of a cube or a cuboid, and of course, it can also have other shapes. Preferably, in the middle area of the operation panel 20, there is a three-dimensional tooth preparation area for installing dental training models, and a planar tooth preparation area is arranged around the three-dimensional tooth preparation area. At the same time, the planar tooth preparation area is a three-layer composite board structure, which sequentially includes an upper board 21 with a thickness and hardness matching the hardness and thickness of tooth enamel, a middle board 22 with a thickness and hardness matching the hardness and thickness of dentin, and a lower board 23 with a thickness matching the depth of the dental pulp cavity. On the upper surface of the upper board 21, there is a closed-loop planar pattern 24 that matches the tooth contour and / or the caries point contour in the top view state. For specific reference, Figure 3 as shown.
[0036] In design, since the planar tooth preparation area is mostly used for beginners to practice or for normal warm-up, the color differences among the three layers of the upper board 21, the middle board 22, and the lower board 23 can be distinguished by visual inspection, and of course, they can also be made of fluorescent materials that can be distinguished under ultraviolet light as part of the assessment. At this time, the fluorescent color can be unified with the colors of the tooth enamel, dentin, and dental pulp cavity of the dental training model.
[0037] When necessary, as Figure 3 shown, a trial grinding pattern 25 can also be arranged at the edge of the operation panel 20. The trial grinding pattern 25 is in the shape of a U or a corner groove, and a groove structure is formed after grinding.
[0038] During actual operation, according to the type of caries point to be practiced, a dental training model with a matching operation pattern 11a can be selected and installed on the operation panel 20. Subsequently, students can first tentatively grind the trial grinding pattern 25 in the planar tooth preparation area. After feeling okay, they can then grind the planar pattern 24 in the planar tooth preparation area, and finally grind the operation pattern 11a at the dental training model in the three-dimensional tooth preparation area, so as to achieve the purpose of linear training from shallow to deep. When necessary, according to the practice progress, dental training models of five types of caries points can be installed on a single operation panel 20 at one time, so as to achieve a systematic training effect. The entire process has a strong degree of linearity, and the training effect is particularly remarkable.
[0039] Of course, for those skilled in the art, the present utility model is not limited to the details of the above exemplary embodiments, but also includes the same or similar ways that can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description.
[0040] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
[0041] The technical parts not detailedly described in the present utility model are all well-known technologies.
Claims
1. Dental training model, comprising a dental body (10), characterized in that: The dental body (10) has a double-layer structure, and along the tooth preparation direction, an outer dental body (11) with hardness and thickness matching those of enamel and an inner dental body (12) with hardness matching that of dentin are arranged in sequence; an operation pattern (11a) corresponding to the carious lesion point is also arranged on the outer wall of the outer dental body (11), and the contour of the operation pattern (11a) matches the contour of the corresponding carious lesion point in the top-down view; the area of the dental body (10) bounded by the operation pattern (11a) and sunken by a specified depth forms a simulated carious lesion area, and the area of the dental body (10) outside the operation pattern (11a) is the normal area. At least one of the materials used for the normal area and the simulated carious lesion area is a fluorescent material that can be developed under ultraviolet light, and when both the normal area and the simulated carious lesion area are fluorescent materials, there is a color difference between the fluorescent colors of the normal area and the simulated carious lesion area.
2. The dental training model according to claim 1, wherein: In the normal area, at least one of the inner dental body (12) and the outer dental body (11) uses a fluorescent material that can be developed under ultraviolet light, and there is a color difference between the fluorescent color of the corresponding dental body and the fluorescent color of the simulated carious lesion area.
3. The dental training model according to claim 2, wherein: It also includes a core dental body as the pulp cavity located in the innermost layer, and the material used for the core dental body in the normal area is a fluorescent material that can be developed under ultraviolet light. At this time, the thickness of the inner dental body (12) covering the core dental body matches the thickness of dentin; when only the inner dental body (12) among the inner dental body (12) and the outer dental body (11) in the normal area is a fluorescent material, there are color differences between the fluorescent colors of the core dental body, the simulated carious lesion area, and the inner dental body (12). When only the outer dental body (11) is a fluorescent material, there are color differences between the fluorescent colors of the core dental body, the simulated carious lesion area, and the outer dental body (11); when both the inner dental body (12) and the outer dental body (11) are fluorescent materials, there are color differences between the fluorescent colors of the core dental body, the simulated carious lesion area, the inner dental body (12), and the outer dental body (11).
4. The dental training model according to claim 1 or 2 or 3, characterized in that: A cavity (13) serving as the pulp cavity is provided inside the inner dental body (12). At this time, along the tooth preparation direction, the thickness of the inner dental body (12) matches the thickness of dentin.
5. Dental training device, characterized in that: It includes an operation board (20), and the operation board (20) is divided into a planar tooth preparation area and a three-dimensional tooth preparation area; the planar tooth preparation area has a three-layer composite board structure, and sequentially includes an upper board (21) with thickness and hardness matching those of enamel from top to bottom, a middle board (22) with thickness and hardness matching those of dentin, and a lower board (23) with thickness matching the depth of the pulp cavity. A closed-loop planar pattern (24) matching the tooth contour in the top-down view and / or the contour of the carious lesion point in the top-down view is arranged on the upper surface of the upper board (21); a dental training model as described in claim 1 or 2 or 3 is fixed at the three-dimensional tooth preparation area.
6. The dental training device according to claim 5, characterized in that: The three-dimensional tooth preparation area is located in the middle area of the operation board (20), and the planar tooth preparation area is located on both sides of the three-dimensional tooth preparation area or covers the three-dimensional tooth preparation area.
7. The dental training device according to claim 5, wherein: The operation panel (20) is concavely provided with a card slot that fits the bottom of the tooth body (10) and allows the tooth body (10) to be inserted; screw holes are provided at the bottom of the tooth body (10), and the fixing screw (30) penetrates the operation panel (20) from bottom to top and then thread-fixes the tooth body (10) on the operation panel (20).
8. The dental training device according to claim 5, wherein: The tooth body (10) is integrally formed on the operation panel (20).
9. The dental training device according to claim 5, characterized in that: The upper layer board (21), the middle layer board (22) and the lower layer board (23) have color differences visible to the naked eye, or the upper layer board (21), the middle layer board (22) and the lower layer board (23) are made of three fluorescent materials that can be developed under ultraviolet light and have color differences respectively.
10. The dental training device according to claim 5, characterized in that: A trial grinding pattern (25) is arranged at the edge of the operation panel (20). The trial grinding pattern (25) is U-shaped or angular groove-shaped, and the groove end of the trial grinding pattern (25) is located on the edge of the operation panel (20).