Abrasive wear of two glass ionomer cements after simulated toothbrushing

Resumo

Introduction and objective: Glass ionomer cement, which was first
introduced in Dentistry in 1972, presents good qualities such as
aesthetics, fluoride release and adhesion to dental tissues. Because
of its preventive characteristics regarding to dental caries, glass
ionomer cement has been used for Atraumatic Restorative Treatment
(ART), as reported by Frencken and Holmgren [6], meeting the
principles announced by the World Health Organization (WHO)
for application to large population groups without regular access
to dental care. Material and methods: In this present study, the
abrasive wear strength of two glass-ionomer cements (Vidrion R®
and ChemFlex®) was evaluated through toothbrushing machine.
Classic® toothbrushes with soft bristles and Sorriso® dentifrice were
also used for the study. Results: Student-t test showed significant
difference between both groups, with tobs value = 9.4411 at p <
0.05. Conclusion: It can be concluded that the wear rate caused
by toothbrush/dentifrice was higher for Vidrion R® (52.00 mg) than
ChemFlex® (5.57 mg).