Artificial tooth base resin-nano zirconium oxide composite material and preparation thereof

Abstract

The present invention provides false tooth base resin applied to the oral cavity repair, which is nanometer zirconia composite material. Firstly, silane coupling agent Z-6030 is used to decorate the surface of the nanometer zirconia. The raw material components are 0.5 percent to 5.0 percent of silane coupling agent Z-6030 and 95 percent to 99.5 percent of the nanometer zirconia. The nanometer zirconia decorated by the coupling agent is obtained. Then the nanometer zirconia decorated by the coupling agent is synthesized with polymethyl methacrylate. The material components are 1 percent to 5 percent of the nanometer zirconia decorated by the coupling agent and 95 percent to 99 percent of the polymethyl methacrylate. The nanometer zirconia composite material is obtained, the flexural strength of which can be 95.61MPa. The nanometer zirconia composite material manufactured by the present invention has high flexural strength, easy polishing, good finish degree, pink color, easy adjustment and good biological compatibility and is the novel resin with good biological and mechanical performance, which can be widely applied to the dentistry.

Description

【Technical field】 [0001] The invention relates to the technical field of medical materials, specifically, a denture base resin that can be applied to various dentition defects, dentition loss, partial denture restoration, complete denture restoration and other diseases in oral restoration—nano Zirconia composite. 【Background technique】 [0002] Denture base resin (PMMA) usually consists of tray powder (powder) and tray water (liquid); The main ingredient is methyl methacrylate (MMA). In clinical application, people mix the tray powder and tray water according to a certain ratio, so that the tray water slowly penetrates into the tray powder particles to swell the particles, and under the action of temperature and initiator, the formaldehyde Free radical polymerization of methyl acrylate forms a rigid denture base. The application of denture base resin greatly meets the aesthetic requirements of dentures, and has the advantages of easy operation, easy polishing, easy repair...

AI Technical Summary

Problems solved by technology

[0003] However, the mechanical properties of the existing denture base resin (PMMA) cannot fully meet the requirements of oral restoration. Even if the doctor has rich clinical experience, the selection and operation process is correct, and the arrangement of artificial teeth is reasonable, the base of the denture is still prone to fracture , that is, the mechanical strength of the denture base resin needs to be enhanced

For this reason, people usually add metal objects to the denture base resin (PMMA) clinically to improve the mechanical strength of the denture base resin; Unreliable

On the other hand, the addition of metal will affect the color of the base, reduce the suitability of the base and make it difficult to cushion or line in some places

At present, some people use fibers to reinforce the denture base, but it is very difficult to accurately place the fibers in the resin, which makes the base easily shift during the molding process, thus affecting the reinforcement effect

At the same time, due to the hard texture of the fibers, it is difficult to polish the fibers exposed on the surface of the base