Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/199374
Type: Artigo de periódico
Title: Analysis Of Roughness And Surface Hardness Of A Dental Composite Using Atomic Force Microscopy And Microhardness Testing.
Author: da Silva, Marcos Aurélio Bomfim
Fardin, Aline Barbirato
de Vasconcellos, Renata Carvalho Cabral
Santos, Lucineide de Melo
Tonholo, Josealdo
da Silva, José Ginaldo
dos Reis, José Ivo Limeira
Abstract: The objective of this study was to evaluate the influence of a cola soft drink (CSD) and coffee on the microhardness and surface roughness of composite resin. Fifty cavities were prepared on the vestibular surface of bovine incisors and restored with nanoparticulate resin. The teeth were divided into five groups (n = 10): group A (control), immersion in artificial saliva (AS) for 14 days; group B, immersion in coffee for 15 min (3×/day) for 7 days followed by immersion in AS for another 7 days; group C, immersion in CSD for 15 min (3×/day) for 7 days followed by immersion in AS for another 7 days; group D, immersion in AS for 7 days, immersion in coffee for 15 min (3×/day) for 7 days; group E, immersion in AS for 7 days, immersion in CSD for 15 min (3×/day) for 7 days. After the immersion periods the specimens were analyzed for their microhardness and surface roughness. The data were subjected to analysis of variance (ANOVA) followed by t-test with 5% significance. Group A presented the highest average microhardness and lowest surface roughness, so it was possible to conclude that the consumption of CSD and coffee alters the microhardness and surface roughness of new restorations.
Subject: Acrylic Resins
Animals
Carbonated Beverages
Cattle
Coffee
Composite Resins
Hardness
Microscopy, Atomic Force
Polyurethanes
Surface Properties
Citation: Microscopy And Microanalysis : The Official Journal Of Microscopy Society Of America, Microbeam Analysis Society, Microscopical Society Of Canada. v. 17, n. 3, p. 446-51, 2011-Jun.
Rights: fechado
Identifier DOI: 10.1017/S1431927611000250
Address: http://www.ncbi.nlm.nih.gov/pubmed/21492501
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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