Composite dental resin material containing macropore molecular sieves

Abstract

The invention discloses a composite dental resin material containing macropore molecular sieves, and belongs to the technical field of dental repair materials. Dental resins are prepared from acrylic monomers, initiators, inorganic fillers and dyes; in the inorganic fillers, the macropore molecular sieves, of which the average apertures are not less than 7nm and the using amount accounts for 5-85 percent of the inorganic fillers, are introduced. According to the composite dental resin material containing macropore molecular sieves, the macropore molecular sieves are introduced and used as fillers, so that molecular monomers enter the molecular sieve holes in advance; and after polymerization, an inorganic-organic interpenetrating network is formed by the molecular sieves and a resin basal body, or the molecular sieves and the resin basal body are embedded into the molecular sieve holes, so that the molecular sieves are fixed in a resin network, thereby obviously improving the binding force between the resin basal body and the fillers and reducing the abrasion value of the materials.

Description

technical field [0001] The invention belongs to the technical field of dental restorative materials, and relates to a novel photocurable resin dental material containing macroporous molecular sieves in fillers. technical background [0002] Composite resins have two main problems as dental restorative materials, one is high polymerization shrinkage and the other is poor wear resistance. The former will lead to micro-leakage, while the latter will make the repair surface easy to wear and poor durability. People try to reduce the polymerization shrinkage by adding macromolecular monomers or polymerizing expansion monomers, but the effect is not satisfactory. [0003] The wear resistance of the material is not only related to the wear resistance of the resin matrix and the filler, but also depends on the bonding ability between the resin matrix and the filler. At present, the method of surface treatment is mainly used to improve the bonding force between the filler and the re...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is to introduce macroporous molecular sieves as fillers so that small molecular monomers enter the molecular sieve pores in advance. After polymerization, the molecular sieves and the resin matrix form an inorganic-organic interpenetrating network, and the molecular sieves are fixed in the resin network. Improve the bonding force between the resin matrix and the filler, reduce the wear of the material, and overcome the problems of easy wear and poor durability of the repair surface existing in the technical background

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