Influence of protecting agents on the solubility of glass ionomers.
OBJECTIVE
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).


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.
Rodrigues Garcia
R C
RC
Department of Prosthodontics and Periodontology, Faculty of Dentistry of Piracicaba, University of Campinas, Piracicaba, Brazil.
De Góes
M F
MF
Del Bel Cury
A A
AA
D000704:Analysis of Variance; D003736:Dental Cavity Lining; D003764:Dental Materials; D003793:Dental Restoration, Permanent / Q000379:methods*; D017220:Dentin-Bonding Agents; D005899:Glass Ionomer Cements / Q000737:chemistry*; D007764:Lacquer; D009930:Organic Chemicals; D019279:Resin Cements; D012995:Solubility; D013499:Surface Properties; D014867:Water / Q000737:chemistry
D003764:Dental Materials; D017220:Dentin-Bonding Agents; D005899:Glass Ionomer Cements; D009930:Organic Chemicals; D019279:Resin Cements; C100647:Vidrion-R; C100648:Vidrion-V; D014867:Water; C068076:Chelon Fil; C041330:Scotchbond