首页> 外国专利> PORCELAIN COATING COMPOSITIONS FOR LOW EXPANSION PORCELAIN CORES AND THE RESULTING ALL-CERAMIC DENTAL RESTORATIONS

PORCELAIN COATING COMPOSITIONS FOR LOW EXPANSION PORCELAIN CORES AND THE RESULTING ALL-CERAMIC DENTAL RESTORATIONS

机译:低膨胀瓷粉的瓷涂层组成及全瓷牙修复

摘要

An all-ceramic dental restoration comprising a ceramic core over and atleast one coating thereon of a porcelain composition having a maturing temperature offrom about 850° to about 1050°C. and a coefficient of thermal expansion of from about4.0 to about 13 (room temperature to 500° C.) parts per million per ° C. comprising:Component Amount (Wt. %)SiO2 69 - 75Al2O3 4.0 - 9.5Na2O 5 - 10K2O 0 - 4CaO 0 - 1.5MgO 0 - 6B2O3 6 - 15F 0-3
机译:全陶瓷牙修复体,包括位于其上方和下方的陶瓷芯陶瓷组合物的至少一层涂层,其成熟温度为约850℃至约1050℃。热膨胀系数约为每百万分之4.0至约13(室温至500°C)百万分之一,包括:成分含量(重量%)SiO2 69-75Al2O3 4.0-9.5Na2O 5-10碳酸钾0-4碳酸钙0-1.5氧化镁0-6B2O3 6-15F 0-3

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