Patent ID: 6398990
Filing Date: 2002-06-04
Classification: A61C,A61K,C04B,C23C

Abstract:
A method for the production of a dental restoration comprising the steps of:(a) forming a model of refractory material of a tooth, said refractory material consisting essentially of an admixture of Silica, Silicon Carbide, Magnesium Oxide, and Mono Ammonium Phosphate in predetermined proportions by weight, and optionally Zircon or Aluminium Oxide in predetermined proportions by weight; (b) forming by flame spraying directly onto said refractory model a base layer of technical ceramic of predetermined thickness of said restoration, said refractory model being of high thermal conductivity and cooled during the formation of said base layer; (c) removing the refractory model immediately after the formation of said base layer; (d) sintering said base layer of technical ceramic base material; and (e) applying to said base layer one or more layers of dental porcelain.