A preparation method for synthesizing nano antibacterial tooth enamel layer by hydrothermal method

Abstract

The invention belongs to the field of inorganic nonmetallic materials, particularly discloses a hydrothermal synthesis method for preparation of a nano antibacterial tooth enamel layer and relates to attachment of the antibacterial tooth enamel layer in a general thickness of 0.2-0.8mm onto the surface of an artificial tooth, wherein the antibacterial tooth enamel layer is mainly made from apatite crystals containing silver, copper, calcium and phosphate. Under the control of a dual-polyelectrolyte compound consisting of water-soluble cation polyelectrolyte and organic polyatomic acid, the artificial tooth is put into soluble calcium salts, soluble phosphates, copper sulfate and silver nitrate salts to realize synthesis to finally cover the artificial tooth with the antibacterial tooth enamel layer in the general thickness of 0.2-0.8mm. The antibacterial tooth enamel layer is mainly made from apatite crystals containing silver, copper, calcium and phosphate, and crystal grains of the enamel layer are nanoscale crystal grains, so that copper and silver metallic particles smaller in size can be distributed in the enamel more uniformly; the metallic particles are 30-80nm in diameter, and antibacterial elements can be released quickly and constantly.

Description

Technical field [0001] The invention belongs to the field of inorganic non-metallic materials, especially the preparation method of nano antibacterial tooth enamel layer. It involves attaching a layer of antibacterial tooth enamel with a thickness of usually 0.2-0.8mm on the surface of artificial teeth. The main components are silver, copper, Apatite crystals of calcium and phosphorus. Background technique [0002] At present, the demand for dental materials is increasing year by year. Among them, titanium alloys, nickel-chromium alloys and other dental materials are in great demand in daily life. With the improvement of people's living standards, artificial tooth materials can maintain the same color as natural teeth. It is very important. Therefore, a layer of enamel is usually attached to the surface of titanium alloy and nickel-chromium alloy. The enamel layer is a white, translucent, hard tissue with the highest degree of calcification covering the surface of the tooth. Its ...

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Problems solved by technology

However, this invention material does not contain antibacterial elements, and it does not have antibacterial and antibacterial effects. Other antibacterial patents such as tooth enamel coating liquid and fluoride toothpaste can only play a short-term antibacterial and antibacterial effect. It is very necessary to add antibacterial elements to the enamel layer matrix for antibacterial and anti-virus preparation methods

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