Dental filling composite resin with silica nanofiber as filler and preparation method thereof

Abstract

The invention discloses a dental filling composite resin using a silicon dioxide nano-fiber as a filler. The resin is prepared from the following raw materials in percentage by mass: 18-22 percent of bisphenol A-glycidyl methacrylate, 4-16 percent of triethylene glycol dimethacrylate, 0.5-1 percent of camphorquinone, 0.5-1 percent of ethyl 4-N,N-dimethylaminobenzoate and 60-75 percent of silicon dioxide nano-fiber. The preparation process is simple and easy to operate, the raw materials are easily available at relatively low price, and the prepared composite resin has excellent physical mechanical performance, good abrasion resistance and long service life, has the characteristics of light color, low polymerization shrinkage and the like, and is expected to be used in clinical application.

Description

technical field

[0001] The invention relates to a dental filling resin, in particular to a dental filling composite resin with silicon dioxide nanofiber as a filler and a preparation method thereof. Background technique

[0002] Since the 1960s, dental filling materials have developed rapidly, especially composite resins, which have been widely used in dental clinics and have shown advantages. It has the advantages of being able to restore the natural shape of teeth, with realistic color and texture, and it perfectly combines the polishing and durability of teeth, and the polishing and durability of use are very good. It has good physical and mechanical properties, compressive and tensile properties and durability, so it can be used in many aspects: padding, pit and fissure sealing, filling of small class III holes and class V holes.

[0003] However, the properties of this type of composite resin are still deficient in some aspects, such as low wear resistance and elastic ...