Strong dental porcelain and method for its manufacture

摘要

A dental porcelain having the following composition: -Ingredient Weight by Percent -SiO2 52.7%-64.6% -Al2O3 6.3%-16.4% -Li2O 0%-0.5% -Na2O 3.9%-14.2% -K2O 4.5%-11.7% -MgO 0%-.3% -CaO 1.6%-3.3% -Sro 0.9%-2.3% -BaO 0.3%-8.1% -TiO2 0.1%-3.6% -B2O3 0.2%-5.0% - made by blending powdered first-fire frit with pacifiers, heating this first-fire frit to 2000 DEG F., and rapidly cooling the charge.