CN212997517U - Fiber composite polymer denture gasket - Google Patents
Fiber composite polymer denture gasket Download PDFInfo
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- CN212997517U CN212997517U CN202020316519.1U CN202020316519U CN212997517U CN 212997517 U CN212997517 U CN 212997517U CN 202020316519 U CN202020316519 U CN 202020316519U CN 212997517 U CN212997517 U CN 212997517U
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Abstract
The invention belongs to the field of medical instruments, and particularly relates to a fiber composite polymer denture gasket. Saliva exists in the oral environment, food residues possibly exist in the oral environment, and the requirements on the water absorption agent of the denture pad and the performance of the denture pad in saliva resistance are high. The denture pad also needs to bear the pressure in the repeated chewing process, and has higher requirement on the fatigue resistance of the material. The invention fully considers the using environment of the denture pad and the requirement on the material performance, adopts the design of a three-layer structure, and adds the glass fiber between two polymer films. The fiber composite polymer denture gasket provided by the invention adopts a three-layer structure, glass fibers are embedded into a polymer film, the middle layer is the polymer film containing the glass fibers, and the upper outer layer and the lower outer layer are the polymer films.
Description
Technical Field
The invention belongs to the field of medical instruments, and particularly relates to a fiber composite polymer denture gasket.
Background
The artificial tooth is a "false tooth" as if the leg prosthesis and the artificial limb are called an "artificial limb". The false tooth repair can maintain the beauty, the language and the chewing function of the face of a patient and avoid the pain of the patient caused by tooth missing. However, the denture has some problems in the wearing process, firstly, the denture is difficult to contact with the alveolar bone to achieve the ideal state, and the wearer often feels pain. Secondly, gaps between the false tooth and the dental bed and between the false tooth and the upper jaw cannot be closed, and food is embedded between the false tooth and the dental bed during chewing to cause discomfort and easily cause gingivitis and periodontitis. At this time, if the denture pad is arranged between the denture and the dental bed, the tightness between the denture and the dental bed can be improved, the pressure during chewing can be buffered, and the comfort level of a wearer can be improved.
The oral environment is an alternate environment with oxygen in the daytime and no oxygen at night, with saliva and possibly food debris. Denture liners have a high demand for the ability of the material to absorb water and resist saliva in such an environment. The denture pad also needs to bear the pressure in the repeated chewing process, and has higher requirement on the fatigue resistance of the material. The general denture pad has excellent initial performance, and can not have elasticity, cracking, deformation and the like along with the prolonging of time. The invention fully considers the using environment of the denture pad and the requirement on the material performance, adopts the design of a three-layer structure, and adds the glass fiber between two polymer films. The polymer film provides elasticity and elastic recovery, and the glass fibers provide tensile strength and crack resistance.
Disclosure of Invention
The invention aims to provide a fiber composite polymer denture gasket, which adopts a three-layer structure, and glass fiber is embedded into a polymer film to play a role in reinforcement. The denture pad is made of three layers of polymer films, and the structural schematic diagram of the denture pad is shown in figure 1. The middle layer is a polymer film containing glass fiber, and the upper and lower outer layers are polymer films.
The polymer film may be polyacrylate polymer, epoxy modified polyacrylate polymer, polyurethane polymer, epoxy modified polyurethane, organosilicon polymer or modified organosilicon polymer.
The fiber of the middle layer is compounded with the polymer film, the fiber is glass fiber, and the length is less than 500 nm. The polymer may be a polyacrylate polymer, an epoxy-modified polyacrylate polymer, a polyurethane polymer, an epoxy-modified polyurethane, a silicone polymer, or a modified silicone polymer.
The thickness of the middle layer is 0.2-2.6 mm, preferably 0.6-1.1 mm.
The thicknesses of the upper outer layer and the lower outer layer can be the same or different, and are selected according to the size of a gap between the false tooth and the dental bed in actual use. The thickness of the intermediate layer is 0.1-1.6 mm, preferably 0.2-0.6 mm.
The preparation method of the fiber composite polymer denture gasket comprises the following steps:
1) weighing glass fiber and liquid polymer, and mixing the glass fiber in the polymer uniformly. And then pouring the mixture into a mold with a groove, covering a male mold, compacting, curing and molding to prepare a fiber composite polymer film with a corresponding thickness as an intermediate layer.
2) Pouring the liquid polymer into a mold with a groove, covering a male mold, compacting, curing and molding to prepare a polymer film with a corresponding thickness as an outer layer.
3) According to the size and position relation of the clinical denture and the teethridge, the middle layer fiber composite polymer film and the outer layer polymer film with proper thickness are selected, the three layers are compounded together, and the corresponding denture pad is prepared after cutting.
Drawings
Fig. 1 is a schematic view of a denture pad.
In the figure, numeral 1 is an outer polymer film
Detailed Description
The invention is further illustrated by the following specific examples.
Examples
The room temperature organic silicon rubber with photo-curing performance is selected as a polymer, the glass fiber is chopped glass fiber, and the length is selected to be 150 nm. The proportion of the organic silicon rubber polymer to the chopped glass fiber is calculated according to the mass portion as follows: 100 (5-28). 150g of chopped glass fiber and 1000g of organic silicon rubber polymer are uniformly mixed, poured into a groove die, pressed with a male die, and the thickness of a polymer film is controlled to be 1.0mm (the male die is made of transparent organic glass material and has hardness and light transmittance). Curing to prepare the polymer film compounded by the fibers in the middle layer.
1000g of organic silicon rubber polymer is weighed and poured into a groove die, a male die is pressed, and the thickness of a polymer film is controlled to be 0.3mm (the male die is made of transparent organic glass materials and has hardness and light transmittance). Curing to prepare the outer polymer film of the denture pad.
And compounding the middle layer and the outer layer together, and then preparing the corresponding denture gasket by cutting according to the size and the position relation of the clinical denture and the dental bed.
The polymer can also be polyacrylate, polyurethane or epoxy modified polyacrylate, and the curing mode can be self-curing or photocuring. Depending on the choice of different polymers and curing modes, other additives may be selected including, but not limited to, fragrances, inorganic fillers, organic solvents, mold inhibitors, flame retardants, heat stabilizers, plasticizers, thixotropic agents, and the like. The intermediate layer and the outer layer may be combined by using an adhesive; or the three layers can be firstly stacked together, put into a mould and compounded together by heating.
Claims (3)
1. A fiber composite polymer denture pad is characterized in that the denture pad adopts a three-layer structure; the denture pad is made of a polymer film compounded by three layers of fibers, the middle layer is the polymer film containing glass fibers, and the upper outer layer and the lower outer layer are the polymer films.
2. The fiber composite polymer denture pad according to claim 1, wherein the intermediate layer has a thickness of between 0.6mm and 1.1 mm.
3. The fiber composite polymer denture pad according to claim 1, wherein the thickness of the upper and lower outer layers is selected based on the size of the gap between the denture and the gum during actual use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020316519.1U CN212997517U (en) | 2020-03-15 | 2020-03-15 | Fiber composite polymer denture gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020316519.1U CN212997517U (en) | 2020-03-15 | 2020-03-15 | Fiber composite polymer denture gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212997517U true CN212997517U (en) | 2021-04-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020316519.1U Active CN212997517U (en) | 2020-03-15 | 2020-03-15 | Fiber composite polymer denture gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212997517U (en) |
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2020
- 2020-03-15 CN CN202020316519.1U patent/CN212997517U/en active Active
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