Solubility of a resin-modified glass ionomer cement
Quackenbush, B.M.; Donly, K.J.; Croll, T.P.
Asdc Journal of Dentistry for Children 65(5): 310
1998
ISSN/ISBN: 1945-1954 PMID: 9795733 Document Number: 492549
Thirty standardized discs were fabricated from a resin-modified glass ionomer cement (Vitremer -3M) using three different powder/liquid ratios. All specimens were immediately weighed. Specimens were stored in artificial saliva for thirty days. Twice each day the specimens received a 30-min. artificial caries challenge (pH 4.4) and were returned to artificial saliva. At the end of the thirty-day experimental period, the specimens were dried and weighed again. Duncan's Multiple Range Test indicated that the 145 mg powder/35 mg liquid ratio had significantly less weight loss than the 145 mg powder/105 mg liquid ratio (p < 0.05). The results appear to demonstrate that solubility decreases as the aluminosilicate glass powder increases.