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Tooth filling material and preparation method thereof

A dental filling material and raw material technology, applied in dental preparations, dentistry, dental prosthesis, etc., can solve the problems of inferior silver amalgam, easy loss, and unattractive appearance, and achieve good mechanical strength, simple and easy preparation method, and good The effect of biocompatibility

Inactive Publication Date: 2015-09-23
SUZHOU JONATHAN 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 and not easy to wear but not beautiful enough. 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. Therefore, it is necessary to develop a dental filling material that is both beautiful and strong enough to meet the requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A tooth filling material, comprising the following raw materials in parts by mass: 35 parts of polyacrylic resin, 35 parts of chitin, 10 parts of calcium phosphate, 5 parts of bone fragments, 10 parts of silicon dioxide, 5 parts of plasticizer, adhesive 5 parts of antibacterial agent, 5 parts of anti-caries agent, 3 parts of pigment.

[0024] A method for preparing a dental filling material as described above, comprising the following steps:

[0025] (1) Open the plastic high-speed mixer, first get polyacrylic acid resin and chitin, and carry out high-speed mixing for 2 hours, and the rotating speed of the plastic high-speed mixer is 30r / min;

[0026] (2) add remaining raw material again, carry out mixing 1h, the rotating speed of plastic high-speed mixer is 30r / min;

[0027] (3) Add the uniformly mixed materials to the twin-screw extrusion granulator. The twin-screw extrusion temperature ranges are: the temperature in the first zone is 100°C, the temperature in the se...

Embodiment 2

[0029] A tooth filling material, comprising the following raw materials in parts by mass: 40 parts of polyacrylic resin, 40 parts of chitin, 12 parts of calcium phosphate, 5 parts of bone fragments, 12 parts of silicon dioxide, 8 parts of plasticizer, adhesive 8 parts of antibacterial agent, 5 parts of anti-caries agent, 3 parts of pigment.

[0030] A method for preparing a dental filling material as described above, comprising the following steps:

[0031] (1) Open the plastic high-speed mixer, first get polyacrylic acid resin and chitin, and carry out high-speed mixing for 2 hours, and the rotating speed of the plastic high-speed mixer is 35r / min;

[0032] (2) add remaining raw material again, carry out mixing 1h, the rotating speed of plastic high-speed mixer is 35r / min;

[0033] (3) Add the uniformly mixed materials to the twin-screw extrusion granulator. The twin-screw extrusion temperature ranges are: the temperature of the first zone is 102°C, the temperature of the se...

Embodiment 3

[0035] A tooth filling material, comprising the following raw materials in parts by mass: 42 parts of polyacrylic resin, 42 parts of chitin, 14 parts of calcium phosphate, 7 parts of bone fragments, 14 parts of silicon dioxide, 10 parts of plasticizer, adhesive 10 parts of antibacterial agent, 6 parts of antibacterial agent, 7 parts of anti-caries agent, and 5 parts of pigment.

[0036] A method for preparing a dental filling material as described above, comprising the following steps:

[0037] (1) Open the plastic high-speed mixer, first get polyacrylic acid resin and chitin, and carry out high-speed mixing for 2 hours, and the rotating speed of the plastic high-speed mixer is 40r / min;

[0038] (2) add remaining raw material again, carry out mixing 1h, the rotating speed of plastic high-speed mixer is 40r / min;

[0039] (3) Add the uniformly mixed materials to the twin-screw extrusion granulator. The twin-screw extrusion temperature ranges are: the temperature of the first zo...

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PUM

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Abstract

The invention belongs to the field of a medical material, and particularly relates to a tooth filling material and a preparation method thereof. The tooth filling material comprises the following raw materials in parts by weight: 35 to 50 parts of polyacrylic acid resin, 35 to 50 parts of chitin, 10 to 20 parts of calcium phosphate, 5 to 10 parts of bone chips, 10 to 15 parts of silicon dioxide, 5 to 15 parts of plasticizing agent, 5 to 15 parts of adhesive, 5 to 10 parts of antibacterial agent, 5 to 10 parts of caries preventive agent and 3 to 8 parts of pigment. The preparation method comprises the following steps: firstly uniformly mixing the polyacrylic acid resin and the chitin, then sufficiently mixing the other materials, and finally extruding and granulating by utilizing two screws. The tooth filling material is good in biological compatibility and mechanical strength; the preparation method is simple, easy and suitable for the industrialized production.

Description

technical field [0001] The invention belongs to the field of medical materials, and in particular relates to a dental filling material and a preparation method thereof. Background technique [0002] A dental filling is a method of repairing a tooth defect with an artificial substance. Those who have tooth tissue defects caused by dental caries, wedge-shaped defects, trauma, etc. need to be repaired to restore their shape and function. When the lesion has spread to the pulp, or even causes periapical disease, the pulp should be treated first, and then the tooth can be filled. [0003] Before filling the teeth, the dentist will conduct a comprehensive examination of the patient's oral cavity, comprehensively understand the patient's oral health status and deal with it appropriately, and formulate the best dental filling according to the number of caries, treatment position, and degree of caries lesions of the patient fix. Dental filling includes two main steps of cavity pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K6/097A61K6/083A61K6/027A61K6/033A61K6/02A61K6/838A61K6/898
Inventor 吕少波李卓才李苏杨
Owner SUZHOU JONATHAN NEW MATERIALS TECH
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