Year : 2018 | Volume
: 21 | Issue : 6 | Page : 602--606
Effect of cleaning protocols on bond strength of etch-and-rinse adhesive system to dentin
Marina Oliveira Goncalves Galoza, Keren Cristina Fagundes Jordão-Basso, Wilfredo Gustavo Escalante-Otárola, Keli Regina Victorino, Andrea Abi Rached Dantas, Milton Carlos Kuga
Department of Restorative Dentistry, Araraquara School of Dentistry, Araraquara, São Paulo, Brazil
Aim: This study aimed to evaluate the cleaning protocol of dentin impregnated with epoxy resin-based sealer (AH Plus) and the effects on the adhesive interface using 95% ethanol (E) or formamide solution (F) associated with microabrasion with glass microparticles (M).
Methodology: Forty dentin specimens were impregnated with sealer (AH Plus). Specimens were cleansed according to the following protocols (n = 10): G1 (E); G2 (F); G3 (E = M); and G4 (F = M). No treatment was performed in G5 (control). Specimens were subjected to standard error of the mean to evaluate the residues persistence (×500) and open dentinal tubules counting (×2000). Another fifty specimens were subjected to similar procedures and cleaning protocols. Seven days later, composite-resin-made specimens were performed on dentin using etch-and-rinse adhesive system, then submitted to microshear test.
Results: G2 and G4 showed higher residues' persistence and lower incidence of open dentinal tubules than G1 and G3 (P < 0.05). No difference was found between G1 and G3 or G2 and G4 (P > 0.05). Adhesive system bond strength was similar in all groups (P > 0.05).
Conclusions: Microabrasion negatively affected the epoxy resin-based sealer residues' removal protocols' action; all groups presented residues on the dentin surface. However, 7 days later, the protocols did not affect the bond strength of adhesive system to sealer-impregnated dentin.
Dr. Milton Carlos Kuga
Av. Saul Silveira 5-40, Bauru, São Paulo
|How to cite this article:|
Goncalves Galoza MO, Fagundes Jordão-Basso KC, Escalante-Otárola WG, Victorino KR, Rached Dantas AA, Kuga MC. Effect of cleaning protocols on bond strength of etch-and-rinse adhesive system to dentin.J Conserv Dent 2018;21:602-606
|How to cite this URL:|
Goncalves Galoza MO, Fagundes Jordão-Basso KC, Escalante-Otárola WG, Victorino KR, Rached Dantas AA, Kuga MC. Effect of cleaning protocols on bond strength of etch-and-rinse adhesive system to dentin. J Conserv Dent [serial online] 2018 [cited 2019 Apr 19 ];21:602-606
Available from: http://www.jcd.org.in/article.asp?issn=0972-0707;year=2018;volume=21;issue=6;spage=602;epage=606;aulast=Goncalves;type=0