Bond strength of composite resin containing biomaterial S-PRG to eroded dentin

Autor: Alessandra Sanchez Coelho Lourenço, Ana Paula Almeida Ayres, Taís Fonseca Mantilla, Marcelo Giannini, Patricia Moreira de Freitas
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Brazilian Journal of Oral Sciences, Vol 16 (2017)
Druh dokumentu: article
ISSN: 1677-3225
DOI: 10.20396/bjos.v16i0.8651050
Popis: Aim: To evaluate the bond strength of composite resin containing or not biomaterial (S-PRG) to sound/eroded dentine. Methods: Occlusal dentin of 30 human molars (n=15) had half of its surface kept uneroded, while on the other half an erosive lesion was produced by cycling in citric acid (pH 2.3) and supersaturated solution (pH 7.0). On both eroded (ED) and non-eroded (SD) substrates, two restorative systems (containing or not S-PRG) were tested. Composite resin cylinders were built and, after storage in water (24h), were submitted to bond strength test. The analysis of the fracture pattern was performed under an optical microscope (40x). The obtained values of bond strength (MPa) were submitted to ANOVA (two factors) and Tukey multiple comparisons tests (p
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