High-strength ultrathin tooth veneer
By setting specific structures on the dental veneer, such as steps, glue placement grooves and horizontal grooves and vertical grooves, and using glue to cure to form a plate-like structure, the problem of insufficient connection strength of traditional dental veneers is solved, and a firmer connection between the dental veneer is achieved, which significantly improves the strength and stability of use.
Patent Information
- Application Number
- CN202421283247.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-05
AI Technical Summary
Traditional dental veneers are insufficient in connection strength during use and are prone to loosen or fall off during daily use, especially when chewing hard objects, which affects functionality and the patient's social life.
A high-strength ultra-thin tooth veneer is designed. By setting steps, glue-laying grooves, cavity, horizontal grooves and vertical grooves on the veneer body, the curing of glue forms a plate-like structure, achieving full-wrap installation and multi-point fixation, and enhancing the connection strength between the veneer and the teeth.
It significantly improves the bonding strength and structural stability between the tooth veneer and the teeth, ensuring that the tooth veneer is stronger under daily chewing pressure, extends service life and improves the patient's experience.
Smart Images
Figure CN222640616U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oral appliances, in particular to a high-strength ultra-thin tooth veneer. Background Art
[0002] Dental veneers are a widely used dental product for cosmetic purposes, primarily to improve the color, shape, and alignment of teeth to enhance the patient's aesthetic appearance. These veneers are typically applied to the front teeth to cover surface imperfections or irregularities on the teeth and to improve the patient's smile line and overall facial expression.
[0003] However, traditional dental veneers have certain limitations in use. Most dental veneers on the market are usually fixed with a single layer of colloid material. Although this fixing method is simple and quick during the installation process, in actual use, especially when the teeth need to withstand greater chewing forces, its connection strength often cannot meet the needs of long-term use. The bonding force of the single layer of colloid limits the stability of the dental veneer, making the dental veneer easy to loosen or fall off during daily use, especially when chewing hard objects or performing other oral activities. This not only affects the functionality of the dental veneer, but may also cause embarrassment or inconvenience to patients in social and daily life.
[0004] In view of this, this defect of the existing dental veneer technology urgently needs to be solved. Therefore, inventing a new type of dental veneer that can provide stronger connection strength and prevent it from falling off during daily use is the key to improving dental beauty technology and patient satisfaction. Utility Model Content
[0005] In view of the above problems existing in the prior art, the main purpose of the utility model is to provide a high-strength ultra-thin dental veneer.
[0006] The technical solution of the utility model is as follows: a high-strength ultra-thin dental veneer, comprising a veneer body, one side of the veneer body is provided with a step, a glue placement groove is provided inside the step, a cavity is provided inside the veneer body, one side of the veneer body is provided with horizontal grooves equidistantly above the step, one side of the veneer body is provided with vertical grooves symmetrically located on the outside of the corresponding horizontal grooves, and the horizontal grooves and the vertical grooves are both communicated with the cavity.
[0007] Through the above technical means, the patient's teeth can be placed in the glue placement groove, and glue is filled inside the glue placement groove to fix the patient's teeth with glue, and then glue is placed inside the cavity, and the glue will pass through the horizontal groove and the vertical groove to contact the teeth, so as to achieve fixation again. Through such a setting, the full wrapping installation of the teeth can be achieved, and the bottom of the entire tooth can be fixed. After being fixed, the glue inside the cavity will form a plate shape, and the vertical groove and the horizontal groove will be used to fix the tooth surface. Through such a setting, the connection strength between the veneer and the teeth can be greatly enhanced.
[0008] As a preferred embodiment, the veneer body is composed of a wear-resistant layer, a reinforcement layer, a connecting layer, a buffer layer and a contact layer, the contact layer is arranged on the outside of the buffer layer, the connecting layer is arranged on the outside of the buffer layer, the reinforcement layer is arranged on the outside of the connecting layer, and the wear-resistant layer is arranged on the outside of the reinforcement layer.
[0009] As a preferred embodiment, the wear-resistant layer is configured as silicon nitride ceramics, the hardness of the wear-resistant layer is configured between 1500-2000 HV, and the thermal expansion coefficient is 3.3×10^(-6)K^(-1).
[0010] Through the above technical means, the hardness of silicon nitride ceramics ensures that dental veneers have excellent wear resistance and can withstand daily chewing and friction without being easily damaged. Its low thermal expansion coefficient means high dimensional stability under temperature changes, avoiding structural deformation caused by temperature fluctuations and enhancing the long-term stability of the veneer.
[0011] As a preferred embodiment, the reinforcement layer is configured to be a fiber-reinforced polymer material, the tensile strength of the reinforcement layer is configured to be between 2000-2500 MPa, and the elastic modulus thereof is configured to be between 70-120 GPa.
[0012] Through the above-mentioned technical means, the high tensile strength and elastic modulus of fiber-reinforced polymers give dental veneers excellent structural support, which can effectively resist the force generated by teeth during chewing, prevent the dental veneers from breaking or deforming under strong force, and maintain their shape and functionality.
[0013] As a preferred embodiment, the connecting layer is made of polyetheretherketone, and the tensile strength of the connecting layer is set between 90-100 MPa.
[0014] Through the above technical means, the tensile strength of polyetheretherketone material provides the bonding force and mechanical stability required for dental veneers. It can effectively connect the various layers of materials to ensure the structural integrity and durability of the entire dental veneer.
[0015] As a preferred embodiment, the buffer layer is made of soft polyurethane foam material, the compressive strength of the buffer layer is set between 0.1-0.5 MPa, and the elongation is between 100%-200%.
[0016] Through the above-mentioned technical means, the compressive strength and elongation of soft polyurethane foam enable it to provide effective buffering between teeth and hard material veneers, reduce direct pressure on teeth, reduce discomfort caused by wear and impact, and improve wearing comfort.
[0017] As a preferred embodiment, the contact layer is made of medical grade silicone material, and the hardness of the contact layer is set between 5-40 Shore A.
[0018] Through the above-mentioned technical means, medical-grade silicone has good softness and adaptability. When it comes into direct contact with teeth and gums, it can protect soft tissue from damage and reduce foreign body sensation. At the same time, the excellent biocompatibility of silicone also ensures its safe use without causing allergic reactions.
[0019] Compared with the prior art, the advantages and positive effects of the utility model are:
[0020] 1. The glue grooves, horizontal grooves and vertical grooves in the utility model accurately guide the glue to ensure that the glue is evenly distributed and fully covers the key parts of the teeth, thereby improving the bonding strength between the veneer and the teeth. In addition, the plate-like structure formed by the solidification of the glue in the cavity further enhances the overall structural stability, making the dental veneer more solid when bearing daily chewing pressure, greatly improving its use strength and practicality;
[0021] 2. The overall functionality and service life are significantly improved by using a combination of high-performance materials. The materials selected include silicon nitride ceramics, fiber-reinforced polymers, polyetheretherketone, polyurethane foam and medical silicone, each of which provides the necessary properties for its specific layer. Silicon nitride ceramics ensure high wear resistance in the wear-resistant layer; fiber-reinforced polymers provide structural stability in the reinforcement layer; polyetheretherketone is used as a connecting layer material to maintain the consolidation between the layers; polyurethane foam and medical silicone provide cushioning and comfort in the inner layer, reducing the burden on teeth and gums. This material configuration not only enhances the structural integrity of the dental veneer, but also improves the protection of the teeth, ensuring comfort and durability during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is an isometric view of the back structure of the utility model;
[0023] Figure 2 It is an isometric view of the front structure of the utility model;
[0024] Figure 3It is an isometric view of the utility model in a cutaway state;
[0025] Figure 4 It is a schematic diagram of the veneer body structure of the utility model.
[0026] Legend: 1. Veneer body; 11. Wear-resistant layer; 12. Strengthening layer; 13. Connecting layer; 14. Buffer layer; 15. Contact layer; 2. Step; 3. Glue groove; 4. Cavity; 5. Horizontal groove; 6. Vertical groove. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.
[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0029] Example
[0030] like Figure 1-Figure 3 As shown, the utility model provides a high-strength ultra-thin dental veneer: comprising a veneer body 1, a step 2 is provided on one side of the veneer body 1, a glue placement groove 3 is provided inside the step 2, a cavity 4 is provided inside the veneer body 1, a horizontal groove 5 is provided on one side of the veneer body 1 and is located above the step 2 and is equidistantly provided, a vertical groove 6 is provided on one side of the veneer body 1 and is located outside the corresponding horizontal groove 5 and is symmetrically provided, and the horizontal groove 5 and the vertical groove 6 are both communicated with the cavity 4;
[0031] In summary: the patient's teeth can be placed in the glue placement groove 3, and glue is filled inside the glue placement groove 3, and the patient's teeth are fixed by glue, and then glue is placed inside the cavity 4, and the glue will pass through the horizontal groove 5. The vertical groove 6 contacts the teeth, so as to achieve fixation again. Through such a setting, the full wrapping installation of the teeth can be achieved, and the bottom of the entire tooth can be fixed. After being fixed, the glue inside the cavity 4 will form a plate shape, and the vertical groove 6 and the horizontal groove 5 can be used to fix the tooth surface. Through such a setting, the connection strength between the veneer and the teeth can be greatly enhanced.
[0032] like Figure 4 As shown, the veneer body 1 is composed of a wear-resistant layer 11, a strengthening layer 12, a connecting layer 13, a buffer layer 14 and a contact layer 15. The contact layer 15 is arranged on the outside of the buffer layer 14, the connecting layer 13 is arranged on the outside of the buffer layer 14, the strengthening layer 12 is arranged on the outside of the connecting layer 13, and the wear-resistant layer 11 is arranged on the outside of the strengthening layer 12;
[0033] like Figure 4As shown, the wear-resistant layer 11 is set to silicon nitride ceramics, the hardness of the wear-resistant layer 11 is set between 1500-2000 HV, and the thermal expansion coefficient is 3.3×10^(-6)K^(-1);
[0034] In summary: The hardness of silicon nitride ceramics ensures that dental veneers have excellent wear resistance and can withstand daily chewing and friction without being easily damaged. Its low thermal expansion coefficient means high dimensional stability under temperature changes, avoiding structural deformation caused by temperature fluctuations and enhancing the long-term stability of the veneer.
[0035] like Figure 4 As shown, the strengthening layer 12 is set to be a fiber-reinforced polymer material, the tensile strength of the strengthening layer 12 is set between 2000-2500 MPa, and its elastic modulus is set between 70-120 GPa;
[0036] In summary: The high tensile strength and elastic modulus of fiber-reinforced polymers provide dental veneers with excellent structural support, which can effectively resist the force generated by teeth during chewing, prevent the dental veneers from breaking or deforming under strong force, and maintain their shape and functionality.
[0037] like Figure 4 As shown, the connecting layer 13 is set to be made of polyetheretherketone material, and the tensile strength of the connecting layer 13 is set between 90-100 MPa;
[0038] In summary: The tensile strength of PEEK provides the bonding force and mechanical stability required for dental veneers. It can effectively connect the various layers of material to ensure the structural integrity and durability of the entire dental veneer.
[0039] like Figure 4 As shown, the buffer layer 14 is set to be a soft polyurethane foam material, the compressive strength of the buffer layer 14 is set between 0.1-0.5MPa, and its elongation is between 100%-200%;
[0040] In summary: The compressive strength and elongation of soft polyurethane foam enable it to provide effective buffering between teeth and hard dental veneers, reduce direct pressure on teeth, reduce discomfort caused by wear and impact, and improve wearing comfort.
[0041] like Figure 4 As shown, the contact layer 15 is set to be a medical grade silicone material, and the hardness of the contact layer 15 is set between 5-40 ShoreA;
[0042] To sum up: medical-grade silicone has good softness and adaptability. When it comes into direct contact with teeth and gums, it can protect soft tissue from damage and reduce foreign body sensation. At the same time, the excellent biocompatibility of silicone also ensures its safe use and does not cause allergic reactions.
[0043] Working principle:
[0044] During installation, the patient's teeth are placed in the glue slot 3, which is then filled with glue to fix the teeth. Additional glue is injected into the cavity 4 and flows through the horizontal slot 5 and the vertical slot 6 to enhance contact with the teeth, thereby achieving all-round fixation of the teeth. This design not only provides a firm fixation of the teeth, but also enhances the connection strength between the dental veneer and the tooth surface through the plate-like structure formed by the glue after curing, ensuring stability and durability in daily use;
[0045] Dental veneers are made of multiple layers of composite materials, in which the selection of materials for each layer is intended to improve the overall functionality and comfort. The outermost wear-resistant layer 11 is made of silicon nitride ceramics, which has high hardness (1500-2000HV) and low thermal expansion coefficient (3.3×10^(-6)K^(-1)), ensuring the durability and dimensional stability of the veneer during chewing and friction. The lower reinforcement layer 12 uses fiber-reinforced polymers to provide a tensile strength of 2000-2500MPa and an elastic modulus of 70-120GPa, which provides the necessary structural support for the dental veneer. The polyetheretherketone used in the connecting layer 13 has excellent tensile strength (90-100MPa), ensuring the firm connection of the various layers of materials. The buffer layer 14 uses soft polyurethane foam, whose low compressive strength (0.1-0.5MPa) and high elongation (100%-200%) provide the necessary protection and buffering for the teeth and reduce discomfort during use. The innermost contact layer 15 uses medical grade silicone with a hardness of 5-40 Shore A, ensuring gentle contact with teeth and gums, increasing wearing comfort while maintaining good biocompatibility. The combined application of these materials significantly improves the overall performance of dental veneers, optimizing their practicality, durability and comfort.
[0046] Finally, it should be noted that the above-described embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A high-strength ultra-thin dental veneer, comprising a veneer body (1), characterized in that: A step (2) is provided on one side of the veneer body (1), a glue release groove (3) is provided inside the step (2), a cavity (4) is provided inside the veneer body (1), transverse grooves (5) are provided on one side of the veneer body (1) and are located above the step (2) at equal intervals, and vertical grooves (6) are provided on one side of the veneer body (1) and are located symmetrically on the outside of the corresponding transverse grooves (5), and both the transverse grooves (5) and the vertical grooves (6) are in communication with the cavity (4).
2. A high-strength ultra-thin dental veneer according to claim 1, characterized in that: The veneer body (1) is composed of a wear-resistant layer (11), a strengthening layer (12), a connecting layer (13), a buffer layer (14) and a contact layer (15); the contact layer (15) is arranged on the outside of the buffer layer (14); the connecting layer (13) is arranged on the outside of the buffer layer (14); the strengthening layer (12) is arranged on the outside of the connecting layer (13); and the wear-resistant layer (11) is arranged on the outside of the strengthening layer (12).
3. A high-strength ultra-thin dental veneer according to claim 2, characterized in that: The wear-resistant layer (11) is configured as silicon nitride ceramics, the hardness of the wear-resistant layer (11) is configured between 1500-2000 HV, and the thermal expansion coefficient is 3.3×10^(-6)K^(-1).
4. The high-strength ultra-thin dental veneer according to claim 2, characterized in that: The reinforcement layer (12) is made of a fiber-reinforced polymer material, the tensile strength of the reinforcement layer (12) is set between 2000-2500 MPa, and the elastic modulus is set between 70-120 GPa.
5. A high-strength ultra-thin dental veneer according to claim 4, characterized in that: The connecting layer (13) is made of polyetheretherketone, and the tensile strength of the connecting layer (13) is set between 90 and 100 MPa.
6. The high-strength ultra-thin dental veneer according to claim 2, characterized in that: The buffer layer (14) is made of a soft polyurethane foam material, the compressive strength of the buffer layer (14) is set between 0.1 and 0.5 MPa, and the elongation is between 100% and 200%.
7. The high-strength ultra-thin dental veneer according to claim 2, characterized in that: The contact layer (15) is made of medical-grade silicone material, and the hardness of the contact layer (15) is set between 5-40 Shore A.