Influence of protecting agents on the solubility of glass ionomers
Rodrigues Garcia, R.C.; De Góes, M.F.; Del Bel Cury, A.A.
American Journal of Dentistry 8(6): 294-296
1995
ISSN/ISBN: 0894-8275 PMID: 8695005 Document Number: 441815
To evaluate the influence of protective agents (varnish and glaze-resin resin) on water solubility of two glass ionomer restorative cements (Chelon-Fil and Vidrion-R), with the graviometrical test (A.D.A Specification No 9). Fifteen samples of each restorative cement were obtained and divided in one control and two experimental groups: (a) control, no protection; (b) protected with varnish; (c) protected with glaze-resin. On the two experimental groups, after the initial gelification reaction, the specimens were protected and immersed in distilled water for the period of 1 and 24 hours. The two glass ionomer restorative cements tested required surface protection to avoid the early solubility. Among the protective materials evaluated, the varnish was the most effective agent.