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Type: Artigo de periódico
Title: Influence of the methodology and evaluation criteria on determining microleakage in dentin-restorative interfaces
Author: de Camargo, DAA
Sinhoreti, MAC
Correr, L
Neto, MDD
Consani, S
Abstract: This in vitro study compared microleakage along the dentin-restorative interface using a spectrophotometer protocol and two conventional single-surface methods (scores and percentages), using an organic dye (0.5% buffered methylene blue) or a tracer (50% silver nitrate). Occluso-proximal preparations with gingival margins in dentin were made in 40 human teeth. The teeth were divided into four groups (n=10) according to the solution dyes and adhesive system used: group 1, single bond/methylene blue; group 2, single bond/silver nitrate; group 3, Clearfil SE Bond/methylene blue; and group 4, Clearfil SE Bond/silver nitrate. The dye penetration measurements were made in all groups, using scores and percentages. Groups 1 and 3 were also assessed by UV spectrophotometer. For percentage measurement, the data were submitted to ANOVA and Tukey's test. For the material factor, there was a statistically significant difference between groups 1 and 3. For the dye factor, there was a statistically significant difference between groups 3 and 4. The score results were submitted to Kruskall-Wallis test and showed differences between groups 1 and 3 and groups 2 and 3. For spectrophotometer measurement, no significant difference was observed between groups 1 and 3. The results of dye penetration suggest that there was a difference between dyes and measurement methods, and this should change the interpretation of microleakage tests.
Subject: dye
Country: Alemanha
Editor: Springer Heidelberg
Citation: Clinical Oral Investigations. Springer Heidelberg, v. 10, n. 4, n. 317, n. 323, 2006.
Rights: fechado
Identifier DOI: 10.1007/s00784-006-0061-4
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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