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Brazilian Journal of Oral Sciences
Piracicaba Dental School - UNICAMP
EISSN: 1677-3225
Vol. 9, No. 2, 2010, pp. 77-80
Bioline Code: os10017
Full paper language: English
Document type: Research Article
Document available free of charge

Brazilian Journal of Oral Sciences, Vol. 9, No. 2, 2010, pp. 77-80

 en " In vitro" surface roughness of different glass ionomer cements indicated for ART restorations
Momesso, Marília Gabriela Corrêa; da Silva, Renata Cristiane; Imparato, José Carlos Pettorossi; Molina, Celso; Navarro, Ricardo Scarparo & Ribeiro, Sidney José Lima

Abstract

Aim: The aim of this in vitro study was to evaluate the surface roughness of three glass ionomer cements (GICs) indicated for ART restorations.
Methods: Ten cylindrical specimens of three commercial glass ionomers cements (Vidrion R - S.S. White, Maxxion R - FGM and Vitromolar DFL) were prepared (n=30) without surface finishing or protection. Twenty-four hours after preparation, the surface roughness measurements were obtained as the mean of three readings of the surface of each specimen by profilometry. The roughness values (Ra, μm) were subjected to one-way ANOVA and Tukey′s test (p<0.05).
Results: No statistically significant differences were observed between Vidrion R (0.18 ± 0.05) and Vitromolar (0.21 ± 0.05), whereas Maxxion R presented significantly higher roughness values than those of the other materials.
Conclusions: It may be concluded that characteristics of particle size and composition of the different GICs affected their surface roughness 24 h after preparation.

Keywords
roughness, profilometry, glass ionomer cements, ART, restorative dental materials

 
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