Open AccessBond strength at the cement/dentin interface according to protocols for final irrigation of post space
Author(s) -
Carla Frehner Andrade,
Paulo Fernando Otoni da Fonseca Filho,
Marilisa Carneiro Leão Gabardo,
Leonardo Fernandes da Cunha,
Flares BarattoFilho,
Denise Piotto Leonardi
Publication year - 2019
Publication title -
brazilian journal of oral sciences/brazilian journal of oral sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.125
H-Index - 11
eISSN - 1677-3225
pISSN - 1677-3217
DOI - 10.20396/bjos.v18i0.8655275
Subject(s) - sodium hypochlorite , bond strength , distilled water , dentin , dentistry , ethylenediaminetetraacetic acid , cement , chlorhexidine , cementation (geology) , chemistry , irrigation , adhesive , materials science , medicine , composite material , metallurgy , chromatography , ecology , organic chemistry , layer (electronics) , chelation , biology
Aim: The aim was to evaluate the bond strength at the cement/dentin interface in the post space, after specimens were treated with different final irrigation protocols, followed by cementation with a dual resin cement. Methods: Forty-eight extracted uniradicular human premolars were divided into four groups according to the irrigation (n = 12): control with distilled water; 2.5% sodium hypochlorite (NaOCl) + ethylenediaminetetraacetic acid (EDTA); 2.5% NaOCl + passive ultrasonic irrigation (PUI); and 2% chlorhexidine (CHX). The pull-out test was performed. The results were evaluated using ANOVA with Tukey’s paired comparisons, with a significance of 5%. Results: When all groups were compared, significant difference occurred (p = 0.006), and in the paired comparison, NaOCl + PUI and CHX differed (p = 0.005). The CHX showed significantly higher adhesive defects between cement and dentin than other groups. Conclusions: The final irrigation protocol for cleaning after preparation for post space directly influences the bond strength at the cement/dentin interface.