title: Effect of sodium ascorbate on bond strength of different adhesive systems to NaOCl-treated dentin.
abstract: The aim of this study was to evaluate the effects of sodium ascorbate on bond strength of different adhesive systems to NaOCl-treated dentin. Eighty extracted molar teeth were used in the study. The buccal enamel surfaces were removed to obtain a flat dentin surface. The teeth were mounted in self-curing resin and dentin surfaces were irrigated with NaOCl for 10 min. Half of the specimens were treated with sodium ascorbate for 10 min. The teeth were randomly assigned to four subgroups according to the adhesive systems used (Clearfil SE Bond, Clearfil Tri-S Bond, Adper Prompt-L-Pop, Adper Single Bond 2). Bond strengths were determined with a Universal Testing Machine, at a crosshead speed of 0.5 mm/min. Data were statistically analysed using anova at a significance level of 0.05. Two-way ANOVA revealed that the effect of sodium ascorbate application on bond strength of adhesive systems to NaOCl-treated dentin was statistically significant (P < 0.05). The bond strength results were significantly influenced by the application of sodium ascorbate (P < 0.05) and there was a significant difference between the adhesive systems (P < 0.05). Although statistically significant differences were not demonstrated in all adhesive resin groups, sodium ascorbate application after NaOCl treatment improved the bond strength values.
authors.affiliation: Department of Conservative Dentistry, Faculty of Dentistry, Baskent University, Ankara, Turkey. ccivelek@hotmail.com
authors.forename: Cigdem
authors.initials: C
authors.lastname: Celik
authors.forename: Selim
authors.initials: S
authors.lastname: Erkut
authors.forename: Kamran
authors.initials: K
authors.lastname: Gulsahi
authors.forename: Kivanc
authors.initials: K
authors.lastname: Yamanel
authors.forename: Cigdem
authors.initials: C
authors.lastname: Kucukesmen
mesh_terms: D000704:Analysis of Variance; D000975:Antioxidants; D001205:Ascorbic Acid; D001840:Dental Bonding; D003799:Dental Stress Analysis; D003804:Dentin / Q000187:drug effects*; D017220:Dentin-Bonding Agents; D006801:Humans; D008422:Materials Testing; D019279:Resin Cements; D012388:Root Canal Irrigants / Q000494:pharmacology*; D033081:Shear Strength; D012973:Sodium Hypochlorite / Q000494:pharmacology*
chemical_list: D000975:Antioxidants; D017220:Dentin-Bonding Agents; D019279:Resin Cements; D012388:Root Canal Irrigants; D012973:Sodium Hypochlorite; D001205:Ascorbic Acid