DENTAL REFRACTORY MOLD MATERIAL

摘要

PURPOSE:To produce a dental refractory mold material capable of being readily kneaded to afford a kneaded material capable of producing a tooth floor which can hold a crown, an inlay or a laminate of porcelain formed thereon according to the build-up method and baked without developing a crack on the porcelain or causing separation from the tooth floor at the boundary part. CONSTITUTION:Monoammonium phosphate, magnesia clinker having <30mum particle diameter, quartz and magnesia clinker having 30 to 300mum particle diameter are blended respectively in an amount of 5 to 15 pts.wt. 5 to 15 pts.wt., 10 to 50 pts.wt. and 20 to 80 pts.wt.