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Type: Artigo de periódico
Title: In vitro wear of resin-based materials - Simultaneous corrosive and abrasive wear
Author: Correr, GM
Alonso, RCB
Sobrinho, LC
Puppin-Rontani, RM
Ferracane, JL
Abstract: The aim of this study was to evaluate the wear of resin-based materials caused by the association of abrasive and corrosive processes. Twenty specimens were prepared for each material, cast in epoxy in acrylic rings, polished, and profiled with an MTS 3D Profiler. Antagonists were made from deciduous molars. Specimens were distributed into eight groups (n = 10), according to the material (Filtek Supreme, Point 4, Dyract AP, and Fuji II LC) and the type of slurry (neutral and acidic), and then cycled 100,000 times in the OHSU oral wear simulator. The specimens were cleaned and reprofiled. Volume loss and maximum depth were determined. ANOVA and Tukey's test were used for data analysis (P < 0.05). The area of the wear facet on the antagonist was also measured. Composites displayed less wear than the compomer and the resin-modified glass ionomer. Significant differences also were found for cusp wear, with a significant positive correlation shown between cusp and material wear. The acidic slurry significantly increased the wear of the materials compared to the neutral slurry. Exposure to acidic slurry accelerated the wear of resin-based materials. (c) 2005 Wiley Periodicals, Inc.
Subject: wear
resin-based materials
corrosive wear
abrasive wear
Country: EUA
Editor: Wiley-liss
Citation: Journal Of Biomedical Materials Research Part B-applied Biomaterials. Wiley-liss, v. 78B, n. 1, n. 105, n. 114, 2006.
Rights: fechado
Identifier DOI: 10.1002/jbm.b.30461
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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