Composite resin tooth with antibacterial property

Abstract

The utility model provides an antibacterial composite resin tooth, and relates to the technical field of composite resin teeth, the antibacterial composite resin tooth comprises a composite resin tooth main body, the inner side of the composite resin tooth main body is provided with a dental crown main body, and the composite resin tooth main body is composed of the dental crown main body and a tooth root main body; the composite resin tooth main body can be scanned according to a natural tooth shape of a person needing tooth filling, the dental crown main body and the tooth root main body are printed through a 3D printing technology, the dental crown main body and the tooth root main body are mainly made of organic silicon resin, the organic silicon resin endows the surface of the dental crown with excellent wear resistance, friction in the chewing process can be resisted, and the tooth filling effect is good. The appearance and shape of the dental crown main body and the tooth root main body are kept, the silver-loaded zeolite is further arranged on the inner sides of the dental crown main body and the tooth root main body, the silver-loaded zeolite can slowly release silver ions, the antibacterial effect is further enhanced, tissue around the tooth root is prevented from being infected, and therefore the composite resin tooth main body has a certain antibacterial effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to composite resin tooth technical field especially relates to a kind of composite resin tooth with antibiosis. BACKGROUND

[0002] When a small amount of damage appears on the surface of the tooth, the damage can be repaired by adhering an inlay corresponding to the damaged gap. The inlay is usually made by turning and polishing the damaged gap and generating a three-dimensional drawing, then using 3D printing or mold forming process to make a light-cured material inlay that fits the damaged gap. After polishing and polishing, the inlay can be used.

[0003] Announcement No. CN220423984U discloses a composite resin tooth with antibiosis, which comprises a main body and an adhesive layer. The main body is made of light-cured material, and the outer side and bottom surface of the main body are coated with an adhesive layer. A medical magnet block is embedded in the main body.

[0004] When in use, the existing composite resin tooth has deficiencies in antibacterial performance, which can cause oral infections and other problems. Traditional resin teeth cannot effectively resist bacterial invasion in the oral cavity for a long time, which not only affects the oral health of patients, but also may cause the repair effect to be reduced. Therefore, we propose a composite resin tooth with antibiosis. UTILITY MODEL CONTENT

[0005] Therefore, the present application provides a composite resin tooth with antibiosis, which aims to solve the above technical problems to some extent.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A composite resin tooth with antibiosis comprises a composite resin tooth main body, a dental crown main body is arranged on the inner side of the composite resin tooth main body, two dental root main bodies are fixedly installed at the bottom of the dental crown main body, a dental crown outer layer is arranged on the inner side of the dental crown main body, a dental crown outer layer is arranged below the inner side of the dental crown main body, a dental crown inner layer is arranged above the inner side of the dental root main body, and a dental root outer layer is arranged below the inner side of the dental root main body.

[0008] The dental crown outer layer comprises a wear-resistant antibacterial surface layer, a buffer layer and a reinforcing layer. The wear-resistant antibacterial surface layer is arranged above the inner side of the dental crown outer layer. The buffer layer is arranged on one side of the wear-resistant antibacterial surface layer. The reinforcing layer is arranged on one side of the buffer layer.

[0009] By adopting the above technical scheme, the main material of the dental crown main body and the dental root main body is organic silicon resin. The organic silicon resin gives the dental crown surface excellent wear resistance, can resist friction during chewing, and maintains the appearance and shape of the dental crown main body and the dental root main body,

[0010] Preferably, the inner layer of the dental crown comprises an antibacterial core layer, a stress dispersion layer and a bonding base layer, the antibacterial core layer is arranged above the inner side of the inner layer of the dental crown, the stress dispersion layer is arranged on one side of the antibacterial core layer, and the bonding base layer is arranged on one side of the stress dispersion layer.

[0011] By adopting the above technical scheme, the silver-loaded zeolite is further arranged on the inner side of the dental crown body and the dental root body, the silver-loaded zeolite can slowly release silver ions, further enhances the antibacterial effect, prevents the infection of the tissue around the dental root, and thus the composite resin tooth body has a certain antibacterial effect.

[0012] Preferably, the outer layer of the dental root comprises an antibacterial protective surface layer, an active intermediate layer and an enhanced bottom layer, the antibacterial protective surface layer is arranged above the inner side of the outer layer of the dental root, the active intermediate layer is arranged on one side of the antibacterial protective surface layer, and the enhanced bottom layer is arranged on one side of the active intermediate layer.

[0013] By adopting the above technical scheme, the material of the antibacterial protective surface layer is nano zinc oxide, the nano zinc oxide can enhance the antibacterial performance of the material, and at the same time has a certain anti-inflammatory effect, which helps to reduce the inflammatory reaction of the tissue around the dental root.

[0014] Preferably, the inner layer of the dental root comprises an antibacterial inner layer surface layer, a buffer intermediate layer and a connecting bottom layer, the antibacterial inner layer surface layer is arranged above the inner side of the inner layer of the dental root, the buffer intermediate layer is arranged on one side of the antibacterial inner layer surface layer, and the connecting bottom layer is arranged on one side of the buffer intermediate layer.

[0015] Preferably, the shape of the dental crown body and the dental root body is similar to that of a natural dental crown and a natural dental root, and a plurality of arc chamfers are arranged on the outer side of the dental crown body and the dental root body; the composite resin tooth body is more comfortable for a person to use, and the person's oral cavity is not easily damaged.

[0016] Preferably, the thickness of the wear-resistant antibacterial surface layer is 0.2-0.3mm, and the material of the wear-resistant antibacterial surface layer is organic silicon resin.

[0017] Preferably, the thickness of the buffer layer is 0.3-0.5mm, and the material of the buffer layer is polyurethane material.

[0018] Preferably, the thickness of the enhanced layer is 0.5-0.8mm, and the material of the enhanced layer is glycidyl methacrylate.

[0019] Compared with the prior art, the utility model has the advantages that:

[0020] (1) Buffer layer This is the outermost layer of the crown, with a thickness of about 0.2-0.3mm; the material is silicone resin; silicone resin gives the crown surface excellent wear resistance, can resist friction during chewing, and maintain the appearance and shape of the crown; nano-silver particles as an antibacterial ingredient can effectively inhibit the adhesion and growth of common bacteria in the oral cavity (such as streptococcus and staphylococcus); when bacteria come into contact with the surface of the crown, nano-silver particles will release silver ions, damaging the cell membrane and metabolic process of bacteria, thereby playing an antibacterial role; at the same time, this layer also has good hydrophobicity, which can reduce the adhesion of food residues and bacteria on the surface of the crown; the reinforcing layer is located below the wear-resistant and antibacterial surface layer, with a thickness of about 0.3-0.5mm; the material is polyurethane; polyurethane provides cushioning performance, which can absorb and disperse the biting force during chewing, protecting the internal structure of the crown; the reinforcing bottom layer has a thickness of about 0.5-0.8mm, and is the connecting part between the outer layer and the inner layer of the crown; the material is glass fiber; glass fiber can significantly improve the strength and rigidity of the material, enhancing the overall structural stability of the crown; ensuring that the crown does not delaminate during long-term use;

[0021] (2) Antibacterial core layer As the outermost layer of the inner layer of the crown, it has a thickness of about 0.5-0.7mm; the material is quaternary ammonium salt antibacterial agent; quaternary ammonium salt antibacterial agent has broad-spectrum antibacterial performance and can continuously release antibacterial ions to inhibit the growth of bacteria inside the crown; the stress dispersion layer has a thickness of about 0.4-0.6mm and is made of polyether ether ketone (PEEK) fiber; PEEK fiber has high strength and good fatigue resistance, and can evenly disperse stress under the action of chewing force, preventing damage caused by local stress concentration in the crown; rubber particles further increase the flexibility of the material and improve the ability of the crown to withstand stress in different directions; the bonding base layer is the innermost layer of the inner layer of the crown, with a thickness of about 0.3-0.5mm; the material is methyl methacrylate; methyl methacrylate is a commonly used dental bonding material that can form a firm bond with the surface of the tooth root or abutment, ensuring the fixation of the crown in the oral cavity; the initiator can initiate the polymerization reaction of methyl methacrylate under appropriate conditions, making the bonding process more stable and reliable;

[0022] (3) The outermost layer of the antibacterial protective surface layer is about 0.2-0.3mm thick, and is made of chitosan and silver-loaded zeolite; the chitosan has natural antibacterial properties and can inhibit the growth of bacteria on the root surface; the silver-loaded zeolite can slowly release silver ions to further enhance the antibacterial effect and prevent infection of the tissue around the root; the active intermediate layer is located below the antibacterial protective surface layer and is about 0.3-0.5mm thick; the material is bioactive glass; the bioactive glass can react with the body fluid in the oral cavity to form a layer of hydroxyapatite on the root surface, promoting the osseointegration of the root and the alveolar bone; the reinforced bottom layer is about 0.5-0.8mm thick and mainly composed of carbon fiber reinforced polymethyl methacrylate (PMMA); the carbon fiber can improve the strength and bending resistance of the root, so that the root can withstand the masticatory force and the pressure from the alveolar bone; and the PMMA ensures the plasticity and processing performance of the material, facilitating the manufacture and installation of the root.

[0023] (4) The antibacterial inner layer surface layer is about 0.5-0.7mm thick and made of nano zinc oxide; the antibacterial inner layer surface layer 17 has long-acting antibacterial effect and can effectively kill the bacteria around the root; the nano zinc oxide can enhance the antibacterial performance of the material and also has certain anti-inflammatory effect, which helps to reduce the inflammatory reaction of the tissue around the root; the buffer intermediate layer is about 0.4-0.6mm thick and made of silicone rubber; the silicone rubber provides good elasticity and buffering performance and can absorb and disperse the pressure of the root during the stress process, protecting the internal structure of the root and the surrounding tissue; the connecting bottom layer is about 0.3-0.5mm thick and made of titanium alloy mesh and resin adhesive; the titanium alloy mesh can enhance the overall strength and rigidity of the root and provide support for the root; the resin adhesive can tightly bond the titanium alloy mesh with the outer layer and other internal components, and also facilitates the connection with the post or implant during the installation of the root, ensuring the firm fixation of the root in the oral cavity.

[0024] In order to make the above objects, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are referred to. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A three-dimensional structure schematic diagram of a composite resin tooth with antibacterial property is provided in the present application;

[0026] Figure 2 A three-dimensional diagram of a part of the structure of a composite resin tooth with antibacterial property is shown in the present application;

[0027] Figure 3 A three-dimensional diagram of a part of the structure of a composite resin tooth with antibacterial property is shown in the present application;

[0028] Figure 4 A three-dimensional diagram of a part structure of a composite resin tooth with antibacterial property is shown.

[0029] Reference signs:

[0030] 1, composite resin tooth body; 2, crown body; 3, root body; 4, crown outer layer; 5, crown inner layer; 6, root outer layer; 7, root inner layer; 8, wear-resistant antibacterial surface layer; 9, buffer layer; 10, reinforcing layer; 11, antibacterial core layer; 12, stress dispersion layer; 13, bonding base layer; 14, antibacterial protective surface layer; 15, active intermediate layer; 16, reinforcing bottom layer; 17, antibacterial inner surface layer; 18, buffer intermediate layer; 19, connecting bottom layer. DETAILED DESCRIPTION

[0031] In order to further understand the invention content, characteristics and effects of the present application, the following examples are given, and the detailed description is as follows in conjunction with the drawings.

[0032] The structure of the present application will be described in detail below in conjunction with the drawings.

[0033] Reference Figures 1-4 A composite resin tooth with antibacterial property, comprising a composite resin tooth body 1, the inner side of the composite resin tooth body 1 is provided with a crown body 2, the bottom of the crown body 2 is fixedly installed with two root bodies 3, the inner side of the crown body 2 is provided with a crown outer layer 4, the inner side below the crown body 2 is provided with a crown outer layer 4, the inner side above the root body 3 is provided with a crown inner layer 5, and the inner side below the root body 3 is provided with a root outer layer 6.

[0034] The crown outer layer 4 comprises a wear-resistant antibacterial surface layer 8, a buffer layer 9 and a reinforcing layer 10, the wear-resistant antibacterial surface layer 8 is arranged on the inner side above the crown outer layer 4, the buffer layer 9 is arranged on one side of the wear-resistant antibacterial surface layer 8, and the reinforcing layer 10 is arranged on one side of the buffer layer 9.

[0035] The buffer layer 9 is the outermost layer of the dental crown, with a thickness of about 0.2-0.3mm; the material is silicone resin; the silicone resin gives the surface of the dental crown excellent wear resistance, can resist friction during chewing, and maintain the appearance and shape of the dental crown; the nano-silver particles serve as antibacterial ingredients, which can effectively inhibit the adhesion and growth of common bacteria in the oral cavity, such as streptococcus and staphylococcus; when the bacteria come into contact with the surface of the dental crown, the nano-silver particles will release silver ions, which can destroy the cell membrane and metabolic process of the bacteria, thereby playing an antibacterial role; at the same time, this layer also has good hydrophobicity, which can reduce the adhesion of food residues and bacteria on the surface of the dental crown; the reinforcing layer 10 is located below the wear-resistant and antibacterial surface layer, with a thickness of about 0.3-0.5mm; the material is polyurethane; the polyurethane material provides cushioning performance, which can absorb and disperse the occlusal force during chewing, protecting the internal structure of the dental crown; the reinforcing bottom layer has a thickness of about 0.5-0.8mm, and is the connecting part between the outer layer and the inner layer of the dental crown; the material is glass fiber; the glass fiber can significantly improve the strength and rigidity of the material, enhancing the overall structural stability of the dental crown; ensuring that the dental crown does not delaminate during long-term use.

[0036] In this embodiment, the inner layer 5 of the dental crown includes an antibacterial core layer 11, a stress dispersion layer 12, and a bonding base layer 13; the antibacterial core layer 11 is arranged above the inner side of the inner layer 5 of the dental crown; the stress dispersion layer 12 is arranged on one side of the antibacterial core layer 11; and the bonding base layer 13 is arranged on one side of the stress dispersion layer 12.

[0037] The antibacterial core layer 11 is the outermost layer of the inner layer of the dental crown, with a thickness of about 0.5-0.7mm; the material is a quaternary ammonium salt antibacterial agent; the quaternary ammonium salt antibacterial agent has broad-spectrum antibacterial performance and can continuously release antibacterial ions to inhibit the growth of bacteria inside the dental crown; the stress dispersion layer 12 has a thickness of about 0.4-0.6mm and is made of polyether ether ketone (PEEK) fiber; the PEEK fiber has high strength and good fatigue resistance, which can uniformly disperse stress under the action of chewing force, preventing damage caused by local stress concentration of the dental crown; rubber particles further increase the flexibility of the material, improving the ability of the dental crown to withstand stress in different directions; the bonding base layer 13 is the innermost layer of the inner layer of the dental crown, with a thickness of about 0.3-0.5mm; the material is methyl methacrylate; methyl methacrylate is a commonly used dental bonding material, which can form a firm bond with the surface of the dental root or abutment, ensuring the fixation of the dental crown in the oral cavity; the initiator can initiate the polymerization reaction of methyl methacrylate under appropriate conditions, making the bonding process more stable and reliable.

[0038] In this embodiment, the outer layer 6 of the dental root includes an antibacterial protective surface layer 14, an active intermediate layer 15, and a reinforcing bottom layer 16; the antibacterial protective surface layer 14 is arranged above the inner side of the outer layer 6 of the dental root; the active intermediate layer 15 is arranged on one side of the antibacterial protective surface layer 14; and the reinforcing bottom layer 16 is arranged on one side of the active intermediate layer 15.

[0039] Antibacterial protective surface layer 14: the outermost layer of the dental root, with a thickness of about 0.2-0.3mm; the material is chitosan and silver-loaded zeolite; chitosan has natural antibacterial properties and can inhibit the growth of bacteria on the surface of the dental root; silver-loaded zeolite can slowly release silver ions, further enhancing the antibacterial effect and preventing infection of the tissues around the dental root; Active intermediate layer 15: located below the antibacterial protective surface layer, with a thickness of about 0.3-0.5mm; the material is bioactive glass; bioactive glass can react with body fluids in the oral cavity to form a layer of hydroxyapatite on the surface of the dental root, promoting the osseointegration of the dental root and alveolar bone; Strengthening bottom layer 16: with a thickness of about 0.5-0.8mm, mainly composed of carbon fiber reinforced polymethyl methacrylate (PMMA); carbon fiber can improve the strength and bending resistance of the dental root, allowing it to withstand masticatory forces and pressure from the alveolar bone; PMMA ensures the plasticity and processability of the material, facilitating the manufacture and installation of the dental root.

[0040] In this embodiment, the inner layer of the dental root 7 includes an antibacterial inner surface layer 17, a buffer intermediate layer 18, and a connecting bottom layer 19, the antibacterial inner surface layer 17 is arranged on the inner side of the inner layer of the dental root 7, the buffer intermediate layer 18 is arranged on one side of the antibacterial inner surface layer 17, and the connecting bottom layer 19 is arranged on one side of the buffer intermediate layer 18.

[0041] Antibacterial inner surface layer 17: with a thickness of about 0.5-0.7mm, the material is nano-zinc oxide; the antibacterial inner surface layer 17 has long-term antibacterial effect and can effectively kill bacteria around the dental root; nano-zinc oxide can enhance the antibacterial properties of the material, and also has certain anti-inflammatory effect, which helps to reduce the inflammatory reaction of the tissues around the dental root; Buffer intermediate layer 18: with a thickness of about 0.4-0.6mm, the material is silicone rubber; silicone rubber provides good elasticity and cushioning performance, which can absorb and disperse the pressure of the dental root during stress process, protecting the internal structure of the dental root and the surrounding tissues; Connecting bottom layer 19: with a thickness of about 0.3-0.5mm, the material is composed of titanium alloy mesh and resin adhesive; titanium alloy mesh can enhance the overall strength and rigidity of the dental root, providing support for the dental root; resin adhesive can tightly bond the titanium alloy mesh with the outer layer and other internal components, and also facilitates the connection with the dental post or implant during installation of the dental root, ensuring the firm fixation of the dental root in the oral cavity.

[0042] In this embodiment, the shape of the dental crown body 2 and the dental root body 3 is similar to that of the natural dental crown and the natural dental root, and the outer side of the dental crown body 2 and the dental root body 3 is provided with a plurality of arc-shaped chamfers.

[0043] The thickness of the wear-resistant antibacterial surface layer 8 is 0.2-0.3mm, and the material of the wear-resistant antibacterial surface layer 8 is silicone resin; the thickness of the buffer layer 9 is 0.3-0.5mm, and the material of the buffer layer 9 is polyurethane material; the thickness of the reinforcing layer 10 is 0.5-0.8mm, and the material of the reinforcing layer 10 is glycidyl methacrylate.

[0044] Specific operation is, the composite resin tooth body 1 is composed of a crown body 2 and a root body 3, the composite resin tooth body 1 can be scanned according to the natural tooth shape of the person needing tooth filling, and the crown body 2 and the root body 3 are printed through 3D printing technology, the main material of the crown body 2 and the root body 3 is silicone resin, the silicone resin gives the crown surface excellent wear resistance, can resist friction in the process of mastication, maintains the appearance and shape of the crown body 2 and the root body 3, and the silver-loaded zeolite is further arranged on the inner side of the crown body 2 and the root body 3, the silver-loaded zeolite can slowly release silver ions, further enhance the antibacterial effect, prevent the infection of the tissue around the root, so that the composite resin tooth body 1 has a certain antibacterial effect.

[0045] It should be noted that in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0046] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A composite resin tooth having antibacterial properties, characterized by, Include: The composite resin tooth body (1), the inner side of the composite resin tooth body (1) is provided with a crown body (2), the bottom of the crown body (2) is fixedly installed with two root bodies (3), the inner side of the crown body (2) is provided with a crown outer layer (4), the inner side of the crown body (2) is provided with a crown outer layer (4), the inner side of the root body (3) is provided with a crown inner layer (5), the inner side of the root body (3) is provided with a root outer layer (6) and a root inner layer (7); The crown outer layer (4) includes a wear-resistant antibacterial surface layer (8), a buffer layer (9) and a reinforcing layer (10), the wear-resistant antibacterial surface layer (8) is arranged on the inner side of the crown outer layer (4), the buffer layer (9) is arranged on one side of the wear-resistant antibacterial surface layer (8), and the reinforcing layer (10) is arranged on one side of the buffer layer (9).

2. The composite resin tooth having antibacterial property according to claim 1, wherein The crown inner layer (5) includes an antibacterial core layer (11), a stress dispersion layer (12) and a bonding base layer (13), the antibacterial core layer (11) is arranged on the inner side of the crown inner layer (5), the stress dispersion layer (12) is arranged on one side of the antibacterial core layer (11), and the bonding base layer (13) is arranged on one side of the stress dispersion layer (12).

3. The composite resin tooth having antibacterial property according to claim 1, wherein The root outer layer (6) includes an antibacterial protective surface layer (14), an active intermediate layer (15) and an enhanced bottom layer (16), the antibacterial protective surface layer (14) is arranged on the inner side of the root outer layer (6), the active intermediate layer (15) is arranged on one side of the antibacterial protective surface layer (14), and the enhanced bottom layer (16) is arranged on one side of the active intermediate layer (15).

4. The composite resin tooth having antibacterial property according to claim 1, wherein The root inner layer (7) includes an antibacterial inner layer surface layer (17), a buffer intermediate layer (18) and a connecting bottom layer (19), the antibacterial inner layer surface layer (17) is arranged on the inner side of the root inner layer (7), the buffer intermediate layer (18) is arranged on one side of the antibacterial inner layer surface layer (17), and the connecting bottom layer (19) is arranged on one side of the buffer intermediate layer (18).

5. The composite resin tooth having antibacterial property according to claim 1, wherein The shape of the crown body (2) and the root body (3) is similar to that of the natural crown and the natural root, and the outer side of the crown body (2) and the root body (3) is provided with a plurality of arc chamfers.

6. The composite resin tooth having antibacterial property according to claim 1, wherein The thickness of the wear-resistant antibacterial surface layer (8) is 0.2-0.3mm, and the material of the wear-resistant antibacterial surface layer (8) is organic silicon resin.

7. The composite resin tooth having antibacterial property according to claim 1, wherein The thickness of the buffer layer (9) is 0.3-0.5mm, and the material of the buffer layer (9) is polyurethane material.

8. The composite resin tooth having antibacterial property according to claim 1, wherein The thickness of the reinforcing layer (10) is 0.5-0.8mm, and the material of the reinforcing layer (10) is glycidyl methacrylate.

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