Influence of Endodontic Irrigants on Resin Sealer Bond Strength to Radicular Dentin
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概要
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The present study evaluated the influence of 2% chlorhexidine and 2.5% sodium hypochlorite on the resin sealer/dentin interface bond strength of AH Plus/gutta-percha and Epiphany/Resilon. Seventy-two extracted bovine incisors were randomly distributed into 6 groups according to irrigant and sealers: GS+AH=physiologic saline solution+AH Plus/gutta-percha; GS+Ep=physiologic saline solution+Epiphany/Resilon; GH+AH=2.5% sodium hypochlorite (NaOCl)+AH Plus/gutta-percha; GH+Ep=2.5% NaOCl+Epiphany/Resilon; GC+AH=2% chlorhexidine (CHX)+AH Plus/gutta-percha; and GC+Ep=2% CHX+Epiphany/Resilon. After 7 days at 37°C and 100% humidity, the roots were cut transversally on the long axis of the tooth in 0.8 mm (±0.09)-thick slices; these slices were then subjected to the push-out test. Data were analyzed using a 2-way ANOVA and Tukey tests at 5% significance. The AH Plus/gutta-percha groups showed significantly higher bond strength than the Epiphany/Resilon groups, regardless of the irrigant used (p<0.001). Sodium hypochlorite adversely affected bond strength in the AH Plus group, whereas chlorhexidine did not influence the push-out bond strength of either sealer (p<0.05). Two percent chlorhexidine did not adversely affect the bond strength of the sealers, whereas 2.5% sodium hypochlorite solution damaged AH Plus/gutta-percha bond strength.
- 東京歯科大学の論文
東京歯科大学 | 論文
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