Estabilidade de união de materiais restauradores ao esmalte e dentina erodidos de dentes decíduos

Tedesco, Tamara Kerber, Bald, A. F. B., Yoshioka, L. and Raggio, Daniela P. ORCID: https://orcid.org/0000-0002-0048-2068 2015. Estabilidade de união de materiais restauradores ao esmalte e dentina erodidos de dentes decíduos. Brazilian Oral Research 29 (s1) , 514.

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Abstract

Abstract: Evaluate the union stability of restorative materials to eroded enamel (E) and dentin (D). Deciduous molars (n = 120) were allocated in 12 groups according to substrate - E or D, precondition of the substrate - healthy (H) or eroded (ER) and restorative material - composite resin/adhesive system - RC, high viscosity glass ionomer cement - CIVAV, or modified by resin - CIVMR. The teeth of eroded Groups E and D were submitted to the erosive challenge (immersion in cola-based drink for 5 min/3x daily/7 days) prior to restorative procedures. Polyethylene cannulas were positioned on the pretreated substrates and filled by one of the materials. Half of the specimens were submitted after 24 h to the microshear test and the other half after 12 months in water. The values of union resistance (RU) were submitted to ANOVA and Tukey Test (α=5%). In general, H substrates resulted in higher RU values than E, with the exception of CIVAV that obtained similar performance in both substrates. In addition, time negatively influenced THE only for the CR groups when evaluating in D. The other groups did not show a reduction in values after 12 months. RC presented better adhesive performance than the other materials evaluated, both in 24h and 12 months

Item Type:	Article
Status:	Published
Schools:	Dentistry
ISSN:	1806-8324
Last Modified:	10 Nov 2022 10:56
URI:	https://orca.cardiff.ac.uk/id/eprint/148760

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