Avaliação da infiltração marginal em restaurações diretas e indiretas em compositos "condensavel" e convencional

by Silva Nunes, Roberta da

Abstract (Summary)
This study compared direct and indirect restorations marginal leakage, prepared with conventional or packable composites. Sixty freshly extracted bovine teeth were selected and standardized vertical s/ot cavities were prepared in their mesial faces and placed 1 mm apical to cementlenamel junction (CEJ). The specimens were randomly divided into six groups: Group I: direct restorationl Z100; Group 11: direct restorationl Surefil; Group 111: indirect restorationl alginatel Z100; Group IV: indirect restorationl alginatel Surefil; Group V: indirect restorationl addition siliconl Z100; and Group VI: indirect restorationl addition siliconl Surefil). For indirect restorations fixation, Rely X dual cure resin cement was used. Ali materiais were used according to manufacturer's instructions. For marginal leakage evaluation, samples were immersed in buffered 2% metilen blue solution during 4 hours. Afier rinsing, they were sectioned to observe dye penetration in tooth-restoration interface, under 63 X magnification stereomicroscopy. These data were submitted to non-parametric Kruskal-Wallis statistical analysis. For 3 utilized techniques, there were no statistical difference between teeth restored with Z100 and Surefil. 80th for Z100 and Surefil, direct restorations presented higher marginal leakage levels compared to indirect ones. The indirect restorations, despite had been molded with alginate or addition silicon presented no statistical differences from each other
This document abstract is also available in Portuguese.
Bibliographical Information:

Advisor:Mario Alexandre Coelho Sinhoreti; Mario Alexandre Coelho Sinhoreti [Orientador]; Marcelo Coelho Goiato; Maximiliano Piero Neisser; Simonides Consani; Lourenço Correr Sobrinho

School:Universidade Estadual de Campinas

School Location:Brazil

Source Type:Master's Thesis

Keywords:materiais dentarios restauração odontologia


Date of Publication:07/30/2003

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