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Effect of postbleaching application of an antioxidant on enamel bond strength of three different adhesives

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Effect of postbleaching application of an antioxidant on enamel bond strength of three different adhesives

dc.contributor.author	Khoroushi, Maryam	es
dc.contributor.author	Aghelinejad, Samaneh	es
dc.date.accessioned	2017-07-26T08:27:13Z
dc.date.available	2017-07-26T08:27:13Z
dc.date.issued	2011	es
dc.identifier.uri	http://hdl.handle.net/10550/60072
dc.description.abstract	Objectives: The aim of this study was to compare the shear bond strength (sbs) of three different adhesives on bleached enamel immmmediately after bleaching, bleached/delayed for 1 week, and bleached/applied antioxidizing agent. Study Design: The enamel surfaces of 144 freshly extracted incisors without any caries and restorations were flattened and divided into 12 groups. The following adhesives were investigated: Optibond FL (OFL) (three-step etch rinse), Optibond Solo Plus (OSP) (two-step etch rinse), Optibond All-in-One (OA) (one-step self-etch), (Kerr, Orange, USASA). Unbleached enamel groups were prepared as negative controls. The remainder surfaces were bleached with 20% Opalescent PF (Ultradent, USASA) 6 h/d for 5 consecutive days. Specimens were bonded immmmediately after bleaching, after 1 week or after using 10% sodium ascorbate gel for 6 hours. After 500 rounds of thermocycling, sbs was measured and data was analyzed with Kruskall-Wallis and Mann-Whitney U-tests (? = 0.05). Results: The sbs decreased for the adhesives after bleaching except for OFL. The effect of applying sodium ascorbate subsequent to bleaching was not equal for the studied adhesives. While for OFL, sbs of the sodium ascorbate group was significantly higher than the unbleached control group, for OSP, the sodium ascorbate group had no statistically significant difference with the unbleached control group and for OA, sbs was significantly lower than the unbleached control group. Conclusions: Different adhesives demonstrate different degrees of reversed bond strength subsequent to applying antioxidant. It seems the method of application and the chemical composition of the adhesives could affect the antioxidant as a reducing agent. © Medicina Oral S. L.	es
dc.source	Khoroushi, Maryam ; Aghelinejad, Samaneh. Effect of postbleaching application of an antioxidant on enamel bond strength of three different adhesives. En: Medicina oral, patología oral y cirugía bucal. Ed. inglesa, 16 7 2011: 23-	es
dc.title	Effect of postbleaching application of an antioxidant on enamel bond strength of three different adhesives	es
dc.type	info:eu-repo/semantics/article	en
dc.type	info:eu-repo/semantics/publishedVersion	en
dc.subject.unesco	UNESCO::CIENCIAS MÉDICAS	es
dc.identifier.doi	10.4317/medoral.17127	es