Clinical evaluation of cement solubility.

This study evaluated a method of comparing the in vivo solubility of permanent luting cements. The cements were carried in crypts placed in complete dentures. A vented cover allowed for free access of fluids. Nine cements were evaluated, and cement loss was measured at 6 months. The glass ionomer (at two powder-liquid ratios) and silicophosphate cements demonstrated an approximately equal amount of solubility, which was less than for the other cements tested. The results of this study are in fairly close agreement with two previously published studies on the clinical solubility of cements.