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Composite resin used for dental filling and preparation method thereof

A composite resin and tooth filling technology, which is applied in the field of composite resin for tooth filling and its preparation, can solve the problems that the strength is inferior to amalgam, is not aesthetically pleasing, easy to wear, etc., and achieves good mechanical strength, improved wear resistance, and suitable viscosity. Effect

Inactive Publication Date: 2015-09-16
SUZHOU POLYMER NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, silver amalgam is strong, not easy to wear but not beautiful enough, and composite resin is beautiful and close to the natural color of teeth, but its strength is not as good as silver amalgam, and it is easy to wear and tear. Therefore, it is necessary to develop a composite resin with good wear resistance and easy filling operation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Composite resin for dental fillings, including the following raw materials in parts by mass: 55 parts of polyacrylic resin, 15 parts of chitin, 10 parts of nano-silica, 1 part of plasticizer, 0.1 part of coupling agent KH550, antioxidant 0.2 parts, 5 parts anti-caries agent. Wherein, the antioxidant is a mixture of antioxidant 164, antioxidant 1010 and antioxidant 1076 in a mass ratio of 1:1.6:0.7.

[0023] The above-mentioned preparation method of composite resin for dental fillings includes the following steps:

[0024] (1) First, add polyacrylic resin and chitin into the high-speed mixer according to the mass ratio, and mix for 30 minutes, and the speed of the high-speed mixer is 50r / min;

[0025] (2) Add the remaining raw materials and mix for 10 minutes;

[0026] (3) The uniformly mixed materials are added to the twin-screw extrusion granulator for extrusion and granulation. The temperature ranges of twin-screw extrusion are: the temperature of the first zone is 100℃, the...

Embodiment 2

[0028] Composite resin for dental fillings, including the following raw materials in parts by mass: 58 parts of polyacrylic resin, 18 parts of chitin, 12 parts of nano-silica, 3 parts of plasticizer, 0.5 parts of coupling agent KH560, and antioxidant 0.5 part, 6 parts of anti-caries agent. Wherein, the antioxidant is a mixture of antioxidant 164, antioxidant 1010 and antioxidant 1076 in a mass ratio of 1:1.6:0.7.

[0029] The above-mentioned preparation method of composite resin for dental fillings includes the following steps:

[0030] (1) First, add polyacrylic resin and chitin into the high-speed mixer according to the mass ratio, and mix for 30 minutes. The speed of the high-speed mixer is 55r / min;

[0031] (2) Add the remaining raw materials and mix for 10 minutes;

[0032] (3) Add the uniformly mixed materials to the twin-screw extrusion granulator for extrusion granulation. The temperature ranges of twin-screw extrusion are respectively: the temperature of the first zone is 10...

Embodiment 3

[0034] Composite resin for dental fillings, including the following raw materials in parts by mass: 61 parts of polyacrylic resin, 21 parts of chitin, 13 parts of nano-silica, 5 parts of plasticizer, 1 part of coupling agent KH570, antioxidant 0.5 parts, 7 parts of anti-caries agent. Wherein, the antioxidant is a mixture of antioxidant 164, antioxidant 1010 and antioxidant 1076 in a mass ratio of 1:1.6:0.7.

[0035] The above-mentioned preparation method of composite resin for dental fillings includes the following steps:

[0036] (1) First, add the polyacrylic resin and chitin into the high-speed mixer according to the mass ratio, and mix for 30 minutes. The speed of the high-speed mixer is 60r / min;

[0037] (2) Add the remaining raw materials and mix for 10 minutes;

[0038] (3) The uniformly mixed materials are added to the twin-screw extrusion granulator for extrusion and granulation. The temperature ranges of twin-screw extrusion are respectively: the temperature of the first zo...

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Abstract

The invention belongs to the field of nanometer materials, and particularly relates to composite resin used for dental filling and a preparation method thereof. The composite resin used for dental filling includes, by weight, 55-70 parts of polyacrylic resin, 15-30 parts of chitin, 10-15 parts of nano-silica, 1-8 parts of plasticizer, 0.1-2 parts of coupling agents, 0.2-1 part of antioxidant and 5-10 parts of caries preventive agents. In the preparation process, the polyacrylic resin and the chitin are mixed evenly; other materials are added and mixed evenly; and finally double-screw extrusion granulation is carried out. The composite resin used for dental filling is good in biocompatibility, good in abrasion resistance and suitable for dental filling on the aspect of viscosity. The preparation method is simple, feasible and suitable for production.

Description

Technical field [0001] The invention belongs to the field of nano materials, and specifically relates to a composite resin used for filling teeth and a preparation method thereof. Background technique [0002] Tooth filling is a method of repairing tooth defects with artificial materials. All tooth tissue defects caused by dental caries, wedge-shaped defects, trauma, etc. need to be repaired to restore their appearance and function. When the disease has spread to the pulp and even causes periapical disease, the pulp should be treated first, and then the tooth should be filled. [0003] Before filling the teeth, the dentist will conduct a comprehensive examination of the patient’s oral cavity, have a comprehensive understanding of the patient’s oral health and appropriate treatment, and formulate the best filling according to the number of dental caries, the location of treatment, and the extent of the disease. Repair plan. Tooth filling includes two main steps of cavity preparat...

Claims

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Application Information

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IPC IPC(8): A61K6/097A61K6/083A61K6/027A61K6/898
Inventor 翟红波杨振枢韦洪屹
Owner SUZHOU POLYMER NEW MATERIALS TECH
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