| abstract |
A DENTAL CEMENT HAVING IMPROVED ANTICARIOGENIC AND CEMENT SOLUBILITY CHARACTERISTICS MAY BE PRODUCED BY INCORPORATING UP TO ABOUT 20% STANNOUS FLUORIDE (SNF2), STANNOUS HEXAFLUOROZIRCONATE (SNZRF6), INDIUM FLUOROZIRCONATE (INZRF7), ZIRCONIUM HEXAFLUOROGERMANATE (ZR(GEF6(2), ZIRCONYL HEXAFLUOROGERMANATE (ZROGEF6), OR INDIUM HEXAFLUOROGERMANATE (IN2(GEF6)3) IN A DENTAL CEMENT POWDER CONTAINING SUBSTANTIALLY NO MAGNESIUM OXIDE (MGO) AFTER THE POWDER HAS BEEN HEAT-TREATED (I.E., SINTERED) AND PROCESSED TO ITS DESIRED PARTICLE SIZE. THE DENTAL CEMENT POWDER IS HEAT-TREATED IN THE PRESENCE OF AN OXIDE OF TIN AS A CONDENSING AGENT PRIOR TO THE ADDITION OF THE FLUORIDE COMPOUND. |