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Effect of Saliva Contamination and Cleansing Solutions on the Bond Strengths of Self‐Etch Adhesives to Dentin
Author(s) -
SHEIKH HUMA,
HEYMANN HARALD O.,
SWIFT, Jr. EDWARD J.,
ZIEMIECKI THOMAS L.,
RITTER ANDRÉ V.
Publication year - 2010
Publication title -
journal of esthetic and restorative dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.919
H-Index - 60
eISSN - 1708-8240
pISSN - 1496-4155
DOI - 10.1111/j.1708-8240.2010.00374.x
Subject(s) - adhesive , bond strength , saliva , dentistry , dentin , molar , materials science , sodium hypochlorite , single bond , composite material , chemistry , medicine , group (periodic table) , biochemistry , organic chemistry , layer (electronics)
Purpose: This study determined the effect of saliva contamination and cleansing solutions on microtensile bond strengths of self‐etch adhesives to dentin. Materials and Methods: Seventy‐five human molars were ground flat to expose mid‐coronal dentin and randomly assigned to five groups ( N = 15): no contamination, saliva contamination without cleansing, saliva and cleansing with water, saliva and cleansing with 2% chlorhexidine, and saliva and cleansing with 5% sodium hypochlorite. One‐third of the specimens in each group of 15 were bonded with Adper Prompt L‐Pop (all‐in‐one self‐etch adhesive; 3M ESPE, St. Paul, MN, USA), one‐third with Adper Easy Bond (all‐in‐one self‐etch adhesive; 3M ESPE), and one‐third with Clearfil SE Bond (self‐etch primer system; Kuraray America, New York, NY, USA). Specimens were restored with composite and processed for microtensile bond strength testing (5–6 rods/tooth). Results: Mean bond strengths ranged from 17.3 MPa for Adper Prompt L‐Pop after water cleansing to 69.3 MPa for Clearfil SE Bond after water cleansing. For all three adhesives, there was no statistically significant difference in bond strengths between the saliva contaminated group, the cleansing groups, and the no contamination groups. Conclusions: Neither saliva nor the cleansing solutions adversely affected bond strengths of the self‐etch adhesive systems. CLINICAL SIGNIFICANCE Saliva contamination of dentin does not seem to adversely affect bonding with self‐etch adhesive systems. These results should be considered preliminary and need confirmatory studies before conclusive recommendations can be made for clinical practice. ( J Esthet Restor Dent 22:402–411, 2010)