DENTAL SHEET FOR PLASTIC RESTORATION HAVING FIBER-REINFORCED CERAMIC COMPOSITE MATERIAL LAYER

摘要

PROBLEM TO BE SOLVED: To provide a dental sheet for plastic restoration for preparing various dental plastic restoration articles, having a pasty layer of a new dental ceramic fiber-reinforced composite material having excellent hardness and toughness.;SOLUTION: The dental sheet for plastic restoration has the pasty layer of the fiber reinforced-ceramic composite material prepared by applying the pasty layer prepared by impregnating slurry of ceramic powder (a) into a reinforcing ceramic fiber (b) on a resin film. The ceramic powder (a) is alumina powder (a1) and/or zirconia powder (a2), the reinforcing ceramic fiber (b) is a reinforcing alumina fiber (b1) or a zirconia fiber (b2), the pasty layer has 0.05 mm(50 μm)-4 mm(4,000 μm) thickness and 10²-10⁶(Pa s) viscosity after applied on the film, and either one of the ceramic powder or the reinforcing ceramic fiber is treated to be surface active.;COPYRIGHT: (C)2008,JPO&INPIT