Composite material for dental prosthesis and preparation method of composite material

Abstract

The invention discloses a composite material for dental prosthesis and a preparation method of the composite material. The composite material is prepared from the following components in parts by weight: 20-40 parts of polyethylene, 25-40 parts of xanthan gum, 20-25 parts of hydroxy calcium phosphate, 2-8 parts of chitosan, 1-6 parts of tributyl citrate, 4-8 parts of a phase transfer agent, 2-6 parts of divinyl tetramine, 25-35 parts of 2-methyl-2-propenoic acid 2-(phosphonooxy) ethyl ester, 4-8 parts of silver lactate, 7-20 parts of titanium dioxide, 10-15 parts of silicon dioxide, 3-8 parts of an antioxidant, 4-8 parts of hydroxyanisole, 1-13 parts of calcium fluophosphate, 8-23 parts of ethanol and 25-45 parts of double distilled water. The tooth filling material disclosed by the invention is good in mechanical strength, high in intensity and good in biocompatibility, and the safety of the material to human bodies is improved. The preparation method disclosed by the invention is simple and easy to implement, and is suitable for industrial production.

Description

technical field [0001] The invention relates to a composite material for dental restoration and a preparation method thereof. technical background [0002] Teeth are the organs that humans use to chew food. Teeth are the hardest organ in the human body. Generally speaking, teeth are white (slightly yellowish in normal people) and hard in texture. The pronunciation of human language is closely related to the upper and lower teeth in the front row of the mouth. However, the prevalence of dental caries in my country is relatively high. In recent years, several oral health surveys have been carried out in my country. The survey results show that the prevalence of caries in deciduous teeth of children aged 5 and the prevalence of dental caries in permanent teeth of children aged 12, 35-44, and 65-74 They are 66%, 28.9%, 88.1% and 98.4% respectively. Dental restorations are often required. Before filling the teeth, the dentist will conduct a comprehensive examination of the pa...

AI Technical Summary

Problems solved by technology

In recent years, a large amount of research work has been carried out around these defects of composite resins. However, the relatively poor mechanical properties and wear resistance of composite resins and the shortcomings of polymerization shrinkage have also been the main factors that limit their wider application.

In most cases, the surface chemical composition and structure of existing composite resin materials are difficult to meet the above requirements, and surface modification treatment, such as graft copolymerization, is usually used to improve its performance