Effect of the Insertion and Polymerization Technique in Composite Resin Restorations: Analysis of Marginal Gap by Atomic Force Microscopy
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
20/05/2014
20/05/2014
01/12/2010
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Resumo |
This in vitro study evaluated the marginal gap at the composite tooth/resin interface in class V cavities under the influence of two insertion techniques and a curing system by means of atomic force microscopy (AFM). Forty enamel and dentin cavities were prepared on the buccal surface in bovine teeth with quadratic forms measuring 2 mm X 2 mm and depth of 1.5 mm. The teeth were then divided into four groups: group A, 10 cavities were restored in one increment, light cured by halogen light; group B, 10 cavities filled with bulk filling, light cured by the light emitting diodes (LED); group C, 10 cavities were restored by the incremental technique, light cured by halogen light; group D, 10 cavities were restored by the incremental technique, light cured by the LED. The teeth underwent the polishing procedure and were analyzed by AFM for tooth/restoration interface evaluation. The data were compared between groups using the nonparametric Kruskall-Wallis and Mann-Whitney tests (p < 0.05). The results showed a statistically significant difference between groups A and B and groups A and C. It was concluded that no insertion and polymerization technique was able to completely seal the cavity. |
Formato |
779-784 |
Identificador |
http://dx.doi.org/10.1017/S1431927610093931 Microscopy and Microanalysis. New York: Cambridge Univ Press, v. 16, n. 6, p. 779-784, 2010. 1431-9276 http://hdl.handle.net/11449/16051 10.1017/S1431927610093931 WOS:000284715300014 WOS000284715300014.pdf |
Idioma(s) |
eng |
Publicador |
Cambridge University Press |
Relação |
Microscopy and Microanalysis |
Direitos |
closedAccess |
Palavras-Chave | #dental marginal adaptation #dental curing light #atomic force microscopy #composite resin #lasers #dental surface analysis |
Tipo |
info:eu-repo/semantics/article |