Anti-falling ultra-thin dental veneer

Abstract

The utility model relates to an anti-falling ultrathin tooth veneer which comprises a veneer body, arc surfaces are arranged at two ends of the veneer body, each arc surface extends to form a plane, clamping teeth are arranged on one side of each plane, notches are formed in the planes and the arc surfaces at equal intervals, rectangular through holes are formed in the veneer body, steps are arranged on the through holes, and clamping teeth are arranged on the clamping teeth. The veneer body is composed of a wear-resisting layer, a connecting layer, a supporting layer, a reinforcing layer and a buffering layer. The tooth clamping device has the beneficial effects that the adaptive grooves are ground on the two sides of the teeth of a patient, and the cambered surface of the tooth attaching surface is finely adjusted, so that the clamping teeth can be accurately placed in the grooves, and the accurate matching between the tooth attaching surface and the teeth is realized. Besides, the extra UV glue is filled in the through hole, the glue is ensured to fully cover the step, in the process, the fixing force of the dental veneers is enhanced, the stability of the whole structure is remarkably improved, and the dental veneers are effectively prevented from falling off in use.

Description

Technical Field

[0001] The utility model relates to the technical field of oral appliances, in particular to an anti-falling ultra-thin tooth veneer. Background Art

[0002] Dental veneers are a type of dental material used to beautify and restore the appearance of teeth, usually covering the surface of teeth to improve color, shape or alignment. This treatment method is favored because it can provide an aesthetic and functional solution. Dental veneers are usually made of ceramic or composite resin materials and fixed to the surface of the tooth by adhesives such as UV glue.

[0003] However, existing ultra-thin dental veneers have some obvious limitations during use. Since ultra-thin dental veneers are usually bonded to the surface of teeth only through one side and are mainly fixed by UV glue, they are subjected to greater mechanical stress in actual use, especially during chewing or gnawing of food. This single bonding method often leads to insufficient bonding between the dental veneer and the teeth, making the dental veneer easy to fall off during daily use, especially at the edges and corners of the dental veneer.

[0004] In view of this, there is an urgent need to develop a new type of anti-falling ultra-thin dental veneer that can provide a more reliable fixation method to resist the chewing and biting pressure in daily life, thereby reducing the risk of dental veneer falling off. 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 an ultra-thin dental veneer that prevents from falling off.

[0006] The technical solution of the utility model is as follows: an anti-falling ultra-thin dental veneer comprises a veneer body, both ends of the veneer body are arranged as arc surfaces, the arc surfaces are extended to planes, one side of the plane is provided with locking teeth, the plane and the arc surface are equidistantly provided with notches, the veneer body is provided with a through hole in a rectangular shape, and the through hole is provided with steps.

[0007] Through the above technical means, during installation, grooves are first ground on both sides of the patient's teeth, and the arc surface can be fine-tuned to place the positioning tooth in the groove. Afterwards, under the premise of normal application of UV glue, after the UV glue is cured, UV glue can be filled into the through hole again. The UV glue will fill the steps, so that the veneer body can be stably fixed, thereby improving the connection force between the veneer body 1 and the gums, and achieving a stable fixing effect.

[0008] As a preferred embodiment, the veneer body is composed of a wear-resistant layer, a connecting layer, a supporting layer, a reinforcement layer and a buffer layer. The buffer layer is in direct contact with the gums, the reinforcement layer is arranged on the outside of the buffer layer, the supporting layer is arranged on the outside of the reinforcement layer, the connecting layer is arranged on the outside of the supporting layer, the wear-resistant layer is arranged on the outside of the connecting layer, and is the outermost side of the veneer.

[0009] As a preferred embodiment, the wear-resistant layer is made of zirconium oxide ceramic with a density of 6.05 g / cm 3 , bending strength is 900-1200MPa, fracture toughness is 5-10MPa·m^1 / 2, and hardness is 1200HV.

[0010] Through the above technical means, the wear-resistant layer is made of zirconium oxide ceramic material, which has extremely high hardness and excellent bending strength, ensuring that the dental veneer resists wear and fracture in daily use while providing a natural and beautiful appearance. The high fracture toughness of this material can effectively absorb the impact generated during chewing and reduce the chance of damage to the veneer.

[0011] As a preferred embodiment, the connecting layer is a connecting film made of a silane coupling agent, which is used to enhance the bonding force between the UV glue and the wear-resistant layer. The film thickness is 0.5-1 μm, the shear strength is 20-30 MPa, and the temperature stability can reach up to 200°C.

[0012] Through the above technical means, the connecting layer uses a connecting film made of silane coupling agent, which is mainly used to enhance the bonding force between the UV glue and the wear-resistant layer to ensure the stability and long-term durability of the dental veneer. The micro-thickness and excellent shear strength of this layer help to form a strong bonding interface to resist physical peeling and chemical corrosion.

[0013] As a preferred embodiment, the support layer is made of polyetheretherketone (PEEK) with a density of 1.3 g / cm 3 , the bending strength is 170MPa, the fracture toughness is 50MPa·m^1 / 2, and the hardness is set to 94HV.

[0014] Through the above technical means, the support layer is made of polyetheretherketone, which provides the core support of the veneer and ensures the strength and stability of the overall structure. The low density and high bending strength of polyetheretherketone material combine to make the dental veneer both light and able to withstand daily functional pressure, while the hardness is adjusted to 94HV to ensure sufficient toughness and avoid discomfort caused by excessive hardness.

[0015] As a preferred embodiment, the reinforcement layer is made of titanium alloy with a density of 4.43 g / cm 3 , tensile strength is 1000MPa, fracture toughness is 55MPa·m^1 / 2, and hardness is 350HV.

[0016] Through the above technical means, the reinforcement layer is made of titanium alloy, which is suitable for bearing the high load pressure of the edge. The main function of this layer is to strengthen the side and edge parts of the dental veneer to prevent cracks or breaks when chewing and biting food.

[0017] As a preferred embodiment, the buffer layer is made of polyvinyl alcohol sponge with a density of 0.03-0.2 g / cm 3 , compressive strength is 5-100kPa.

[0018] Through the above technical means, the buffer layer is made of polyvinyl alcohol sponge material, which is in direct contact with the gums, providing a comfortable use experience for the wearer. The main function of this layer is to reduce the pressure between the dental veneer and the gums, preventing the gums from being over-irritated or painful. Its low density and adjustable compressive strength enable it to effectively absorb and disperse the pressure in the mouth, protecting the gums and tooth roots.

[0019] Compared with the prior art, the advantages and positive effects of the utility model are:

[0020] 1. By grinding adaptive grooves on both sides of the patient's teeth and fine-tuning the curved surface of the dental veneer, the positioning teeth can be accurately placed in these grooves, achieving a precise match between the dental veneer and the teeth. In addition, by filling the through-hole with additional UV glue, it is ensured that the colloid fully covers the step. This process not only strengthens the fixing force of the dental veneer, but also significantly improves the stability of the overall structure, effectively preventing the dental veneer from falling off during use;

[0021] 2. The veneer body is composed of multiple layers of composite materials, each of which is selected to meet specific functional requirements. The wear-resistant layer is made of zirconium oxide ceramic, which provides extremely high hardness and bending strength, effectively resisting wear and fracture in daily use. The silane coupling agent film of the connecting layer enhances the bonding force between the UV glue and the wear-resistant layer, ensuring the long-term stability of the dental veneer. The supporting layer is composed of polyetheretherketone, which provides the necessary structural support to maintain the shape and strength of the dental veneer while ensuring comfort. The reinforcement layer uses titanium alloy to strengthen the edges and sides of the dental veneer to resist high load pressure. The buffer layer is made of polyvinyl alcohol sponge, which directly contacts the gums, relieves pressure and provides a comfortable use experience, reducing irritation to the gums. The combined application of these materials ensures the functionality and durability of the dental veneer while taking into account the comfort and safety of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an isometric view of the front structure of the utility model;

[0023] Figure 2 It is an isometric view of the back structure of the utility model;

[0024] Figure 3 It is an isometric view of the front section state of the utility model;

[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. Connection layer; 13. Support layer; 14. Reinforcement layer; 15. Buffer layer; 2. Arc surface; 3. Plane; 4. Positioning teeth; 5. Notch; 6. Through hole; 7. Step. 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 an anti-falling ultra-thin dental veneer: comprising a veneer body 1, both ends of the veneer body 1 are arranged as arc surfaces 2, the arc surfaces 2 are extended to planes 3, one side of the plane 3 is provided with a locking tooth 4, the plane 3 and the arc surface 2 are equidistantly provided with notches 5, the veneer body 1 is provided with a rectangular through hole 6, and the through hole 6 is provided with a step 7;

[0031] In summary: during installation, grooves are first ground on both sides of the patient's teeth, and the arc surface 2 can be fine-tuned to place the locking tooth 4 in the groove. Then, under the premise of normal application of UV glue, after the UV glue is cured, UV glue can be filled into the through hole 6 again. The UV glue will fill the step 7, so that the veneer body 1 can be stably fixed, thereby improving the connection force between the veneer body 1 and the gums, achieving a stable fixing effect.

[0032] like Figure 1-Figure 3 As shown, the veneer body 1 is composed of a wear-resistant layer 11, a connecting layer 12, a supporting layer 13, a reinforcement layer 14 and a buffer layer 15. The buffer layer 15 is in direct contact with the gums, the reinforcement layer 14 is arranged on the outside of the buffer layer 15, the supporting layer 13 is arranged on the outside of the reinforcement layer 14, the connecting layer 12 is arranged on the outside of the supporting layer 13, and the wear-resistant layer 11 is arranged on the outside of the connecting layer 12 and is the outermost side of the veneer;

[0033] like Figure 4As shown, the wear-resistant layer 11 is made of zirconium oxide ceramic with a density of 6.05 g / cm 3 , bending strength is 900-1200MPa, fracture toughness is 5-10MPa·m^1 / 2, and hardness is 1200HV;

[0034] In summary: the wear-resistant layer 11 is made of zirconium oxide ceramic material, which has extremely high hardness and excellent bending strength, ensuring that the dental veneer resists wear and fracture in daily use, while providing a natural and beautiful appearance. The high fracture toughness of this material can effectively absorb the impact force generated during chewing, reducing the chance of damage to the veneer.

[0035] like Figure 4 As shown, the connecting layer 12 is a connecting film made of a silane coupling agent, which is used to enhance the bonding force between the UV glue and the wear-resistant layer 11, with a film thickness of 0.5-1 μm, a shear strength of 20-30 MPa, and a temperature stability of up to 200°C;

[0036] In summary: the connecting layer 12 is a connecting film made of a silane coupling agent, which is mainly used to enhance the bonding force between the UV glue and the wear-resistant layer 11 to ensure the stability and long-term durability of the dental veneer. The micro-thickness and excellent shear strength of this layer help to form a strong bonding interface to resist physical peeling and chemical corrosion.

[0037] like Figure 4 As shown, the support layer 13 is made of polyetheretherketone (PEEK) with a density of 1.3 g / cm 3 , the bending strength is 170MPa, the fracture toughness is 50MPa·m^1 / 2, and the hardness is set to 94HV;

[0038] In summary: the support layer 13 is made of polyetheretherketone (PEEK), which provides the core support of the veneer and ensures the strength and stability of the overall structure. The low density and high bending strength of the PEEK material make the dental veneer both light and able to withstand daily functional pressure, while the hardness is adjusted to 94HV to ensure sufficient toughness and avoid discomfort caused by excessive hardness.

[0039] like Figure 4 As shown, the reinforcement layer 14 is made of titanium alloy with a density of 4.43 g / cm 3 , tensile strength is 1000MPa, fracture toughness is 55MPa·m^1 / 2, and hardness is 350HV;

[0040] In summary: the reinforcement layer 14 is made of titanium alloy, which is suitable for bearing the high load pressure of the edge. The main function of this layer is to strengthen the side and edge parts of the dental veneer to prevent cracks or breaks when chewing and biting food.

[0041] like Figure 4As shown, the buffer layer 15 is made of polyvinyl alcohol sponge with a density of 0.03-0.2 g / cm 3 , compressive strength is 5-100kPa;

[0042] In summary: The buffer layer 15 is made of polyvinyl alcohol sponge material, which is in direct contact with the gums, providing a comfortable use experience for the wearer. The main function of this layer is to reduce the pressure between the dental veneer and the gums, and prevent the gums from being over-irritated or painful. Its low density and adjustable compressive strength enable it to effectively absorb and disperse the pressure in the oral cavity, protecting the gums and tooth roots.

[0043] Working principle:

[0044] First, adaptive grooves are ground on both sides of the patient's teeth. The curved surface 2 of the dental veneer can be fine-tuned to accurately place the positioning teeth 4 in these grooves. After applying a standard amount of UV glue and partially curing it, additional UV glue is filled into the through hole 6 to fill and cover the step 7. This process not only ensures the stable fixation of the veneer body 1, but also significantly improves the bonding strength between the veneer and the teeth, effectively preventing the veneer from falling off.

[0045] The dental veneer body 1 is composed of multiple layers of composite materials, and each layer of material works together to improve the overall performance. The wear-resistant layer 11 is made of zirconium oxide ceramic, which has extremely high hardness and bending strength, and can effectively resist wear and fracture in daily use. Its high fracture toughness can absorb the impact during chewing and reduce damage. The connecting layer 12 uses a thin film made of silane coupling agent to enhance the bonding force between the UV glue and the wear-resistant layer to ensure the long-term stability of the dental veneer. The supporting layer 13 is made of polyetheretherketone material, which provides lightweight core support and maintains structural strength, while having moderate hardness to avoid discomfort. The reinforcement layer 14 is made of titanium alloy, which is specially used to strengthen the edges and sides of the veneer to resist the high load pressure during chewing. The buffer layer 15 is made of polyvinyl alcohol sponge and directly contacts the gums. Its low density and adjustable compressive strength effectively reduce gum pressure and provide a comfortable use experience.

[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. An ultra-thin dental veneer that prevents falling off, comprising a veneer body (1), characterized in that: Both ends of the veneer body (1) are arranged as arc surfaces (2), the arc surfaces (2) are extended to planes (3), one side of the plane (3) is provided with locking teeth (4), notches (5) are equidistantly provided on the plane (3) and the arc surfaces (2), a through hole (6) is provided in the shape of a rectangle on the veneer body (1), and a step (7) is provided on the through hole (6).

2. The anti-falling ultra-thin dental veneer according to claim 1, characterized in that: The veneer body (1) is composed of a wear-resistant layer (11), a connecting layer (12), a supporting layer (13), a reinforcement layer (14) and a buffer layer (15); the buffer layer (15) is in direct contact with the gums; the reinforcement layer (14) is arranged on the outside of the buffer layer (15); the supporting layer (13) is arranged on the outside of the reinforcement layer (14); the connecting layer (12) is arranged on the outside of the supporting layer (13); the wear-resistant layer (11) is arranged on the outside of the connecting layer (12) and is the outermost side of the veneer.

3. The anti-falling ultra-thin dental veneer according to claim 2, characterized in that: The wear-resistant layer (11) is made of zirconium oxide ceramic with a density of 6.05 g / cm 3 , bending strength is 900-1200MPa, fracture toughness is 5-10MPa·m^1 / 2, and hardness is 1200HV.

4. The anti-falling ultra-thin dental veneer according to claim 3, characterized in that: The connecting layer (12) is a connecting film made of a silane coupling agent, which is used to enhance the bonding force between the UV glue and the wear-resistant layer (11), and has a film thickness of 0.5-1 μm, a shear strength of 20-30 MPa, and a temperature stability of up to 200°C.

5. The anti-falling ultra-thin dental veneer according to claim 2, characterized in that: The support layer (13) is made of polyetheretherketone (PEEK) with a density of 1.3 g / cm 3 , the bending strength is 170MPa, the fracture toughness is 50MPa·m^1 / 2, and the hardness is set to 94HV.

6. The anti-falling ultra-thin dental veneer according to claim 2, characterized in that: The reinforcement layer (14) is made of titanium alloy with a density of 4.43 g / cm 3 , tensile strength is 1000MPa, fracture toughness is 55MPa·m^1 / 2, and hardness is 350HV.

7. The anti-falling ultra-thin dental veneer according to claim 2, characterized in that: The buffer layer (15) is made of polyvinyl alcohol sponge with a density of 0.03-0.2 g / cm 3 , compressive strength is 5-100kPa.

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