In recent years, silicone rubber materials have been widely used in the field of oral medicine because of their excellent performance characteristics.
Elastomer dental impression materials include Condemation silicone and Addition silicone silicone.
Addition-cured silicone rubber is composed of vinyl-containing polysiloxane polymer(Vinyl Polysiloxane, VPS), which is cross-linked with hydride silicone activated by a platinum salt catalyst. Silicon hydrogenation is added to the reaction, which is cross-linked into elastomers.
Silicone rubber has good performance on bio-compatibility, good fluidity and plasticity, broad adjustable curing time. Its cross-linked elastomer has good matching with gypsum matching and elasticity, mechanical strength and dimensional stability, which can be disinfected without reducing the quality of the printing mold to control cross-infection.
Room temperature two-components additional molded silicone rubber mold curing time is short, fast curing, good dimensional stability, good elasticity and its elastic recovery, as well as good operating performance. Therefore, it is recognized as a promising dental impression material at home and abroad.
Vinyl silicone resin
(or MQ silicone resin) can replace some of the oral impression formulation fillers, can improve the mechanical strength of silicone rubber, cohesion strength, fluidity performance, is gradually applied in the oral printing mold alternative materials, with superior and moderate performance.