title: Improving the performance of EndoRez root canal sealer with a dual-cured two-step self-etch adhesive. I. Adhesive strength to dentin.
abstract: This study examined the hypotheses that the use of a self-etching-adhesive improves the adhesion of EndoRez to dentin, and that both techniques are unaffected by the prolonged use of NaOCl when EDTA is used as the final rinse. A tensile bond testing design was employed with composite cylinders bonded to dentin using: (a) 17% EDTA-2 min/EndoRez; (b) 6.15% NaOCl-1 h/EDTA-2min/EndoRez; (c) EDTA-2 min/Clearfil Liner Bond 2V/EndoRez; and (d) NaOCl-1 h/EDTA-2min/Clearfil Liner Bond 2V/EndoRez. Fractographic analyses of debonded specimens were performed using SEM. Two-way ANOVA and Tukey test revealed higher tensile bond strengths with the self-etching-adhesive-modified EndoRez technique (p < 0.001). Sealer tags pulled away from dentinal tubules when EndoRez was used alone, whereas mixed failures occurred within sealer tags, hybrid layers, adhesive, and sealer in the self-etching-adhesive-modified EndoRez technique. Both techniques were unaffected by the prolonged use of NaOCl (p > 0.05) when EDTA was employed as the final rinse.
authors.affiliation: Department of Endodontics, School of Dentistry, Medical College of Georgia, Augusta, Georgia 30912-1129, USA.
authors.forename: Michael D
authors.initials: MD
authors.lastname: Doyle
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Loushine
authors.forename: Kelli A
authors.initials: KA
authors.lastname: Agee
authors.forename: William T
authors.initials: WT
authors.lastname: Gillespie
authors.forename: R Norman
authors.initials: RN
authors.lastname: Weller
authors.forename: David H
authors.initials: DH
authors.lastname: Pashley
authors.forename: Franklin R
authors.initials: FR
authors.lastname: Tay
mesh_terms: D000704:Analysis of Variance; D003188:Composite Resins / Q000737:chemistry*; D004492:Edetic Acid / Q000009:adverse effects*; D006801:Humans; D012387:Root Canal Filling Materials / Q000737:chemistry*; D012388:Root Canal Irrigants / Q000009:adverse effects*; D012973:Sodium Hypochlorite / Q000009:adverse effects*; D018709:Statistics, Nonparametric; D013718:Tensile Strength
chemical_list: D003188:Composite Resins; C481259:EndoRez; D012387:Root Canal Filling Materials; D012388:Root Canal Irrigants; D004492:Edetic Acid; D012973:Sodium Hypochlorite