Nano fluorine-contained high-strength resin dental material and method of producing the same

Abstract

The invention provides a dental material with nanometer fluoric high-fortified resin and making method in light cured resin dental material and powder dispersing method technological field, wherein the resin dental material comprises the following parts: methacrylate ester integral, initiating agent and mineral filler, and the mineral filler comprises CaO-SiO2-Al2O3-P2O5-F silicofluoride fluorosilicate biological ceramic powder. The making method relates to technologies of the biological ceramic powder and nanometer silicon powder through silanization treatment and the nanometer silicon powder being ultrasonically dispersed in organic medium. The invention has biological activity with antibacterial and anti-dental cavity, which gets ideal effects on properties of resisting radioactivity, degree of transparency, tensile strength, abrasion-resistance, density, rheological property and so on.

Description

Technical field: [0001] The invention relates to a novel photocurable resin dental material and a powder dispersion technology used in the preparation of the material. technical background: [0002] Modern dental materials generally use polymerizable monomers, most of which are composite materials composed of methacrylates, inorganic fillers and polymerization initiators. Since Rafael L. Bowen invented the BisGMA monomer, this type of material has been developed rapidly. At present, it has been widely used in dental filling materials, crowns, point bridges, admixtures, inlay materials, external inlay materials and artificial teeth and Restoration of porcelain teeth, etc. However, as people's understanding of oral materials gradually deepens, the requirements for dental materials are higher, not only requiring them to have specific functions, but also requiring them to have biological activity. Multifunctional resin materials that can resist bacteria and dental caries Becom...

AI Technical Summary

Problems solved by technology

A HF-containing monomer developed by US5,037,638, although it can improve the ability of the product to release fluoride ions, but the polymerization performance is affected, and the result is still unsatisfactory

[0006] The second is to directly add fluorine-containing inorganic salts to non-polar or weakly polar polymer resins. Due to the poor compatibility of the two, obvious phase separation will occur, which will lead to a decrease in the mechanical properties of the material

The use of nano-powders can greatly improve the polishing performance and wear resistance of composite resins, but the problem is the self-aggregation of nano-powders

Existing dispersion technologies include three-axis roller mill, ultrasonic oscillation, and pneumatic high-speed dispersion, but none of them are cost-effective