Related Experiment Videos
Influence of protecting agents on the solubility of glass ionomers
R C Rodrigues Garcia1, M F De Góes, A A Del Bel Cury
1Department of Prosthodontics and Periodontology, Faculty of Dentistry of Piracicaba, University of Campinas, Piracicaba, Brazil.
Purpose:
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).
Materials And Methods:
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.
Results:
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.