Effect of At-home and In-office Bleaching on Marginal Microleakage in Composite Resin Restorations using Two Adhesive Systems
Celso A Klein, Douglas da Silva, Eduardo G Reston, Diana LB Borghetti, Roberto Zimmer
Citation Information :
Klein CA, da Silva D, Reston EG, Borghetti DL, Zimmer R. Effect of At-home and In-office Bleaching on Marginal Microleakage in Composite Resin Restorations using Two Adhesive Systems. J Contemp Dent Pract 2018; 19 (3):248-252.
The aim of this study is to assess marginal microleakage of cervical cavities restored with composite resins and two different adhesive techniques subjected to at-home and in-office bleaching.
Materials and methods
In this randomized, blind laboratory experiment, 60 bovine teeth recently extracted were collected and divided into six groups (n = 10 each group). The teeth received cervical cavity preparations (2 mm × 3 mm × 1 mm) with enamel margins. Two different adhesive systems were used (Single Bond 2 and Clearfil SE Bond), in addition to composite resin (Z250). Restored teeth received two different bleaching gels (Opalescence PF and Opalescence Boost). Teeth were thermocycled and analyzed under confocal laser scanning microscopy.
Results
No significant differences were observed (p > 0.05) in microleakage scores between the two groups not subjected to bleaching nor between the four groups that received bleaching treatment (p > 0.05), regardless of the gel and adhesive system employed. However, when comparing nonbleached with bleached teeth, those not subjected to bleaching showed statistically lower marginal microleakage scores (p < 0.05). Data were statistically analyzed using the Kruskal–Wallis test followed by Student–Newman–Keuls post hoc test, with significance set at 5%.
Conclusion
Marginal microleakage in composite resin restorations is influenced by the action of bleaching agents used both at-home and in-office, regardless of the adhesive system employed (total-etch or self-etch).
Clinical significance
Both at-home and in-office bleaching agents have an influence on the adhesive interface of resin restorations, producing changes and inducing marginal leakage.
How to cite this article
Klein Jr CA, da Silva D, Reston EG, Borghetti DLB, Zimmer R. Effect of At-home and In-office Bleaching on Marginal Microleakage in Composite Resin Restorations using Two Adhesive Systems. J Contemp Dent Pract 2018;19(3):248-252.
Nightguard vital bleaching. Quintessence Int 1989 Mar;20(3):173-176.
History, safety, and effectiveness of current bleaching techniques and applications of the nightguard vital bleaching technique. Quintessence Int 1992 Jul;23(7):471-488.
Bleaching teeth treated endodontically: long-term evaluation of a case series. J Endod 2006 Apr;32(4):376-378.
Pulpal response to bleaching of teeth in dogs. Pediatr Dent 1985 Sep;7(3):209-214.
Vital tooth bleaching: sensitivity and pulpal considerations. J Am Dent Assoc 1997 Apr;128 Suppl:41S-44S.
Human pulp responses to in-office tooth bleaching. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2010 Apr;109(4):e59-e64.
The mathematics of diffusion. Oxford: Oxford University Press; 1975.
Influence of simulated pulpal pressure on efficacy of bleaching gels. J Contemp Dent Pract 2014 Jul;15(4):407-412.
Effect of 10% sodium ascorbate on the shear bond strength of composite resin to bleached bovine enamel. J Oral Rehabil 2004 Dec;31(12):1184-1191.
Tooth whitening: what we now know. J Evid Based Dent Pract 2014 Jun;14 Suppl:70-76.
Review of the mechanism of tooth whitening. J Esthet Restor Dent 2015 Sep-Oct;27(5):240-257.
Ion release from a composite resin after exposure to different 10% carbamide peroxide bleaching agents. J Appl Oral Sci 2012 May-Jun;20(3):335-339.
Effect of bleaching on the elution of monomers from modern dental composite materials. Dent Mater 2009 Feb;25(2):254-260.
Effect of in-office bleaching agents on physical properties of dental composite resins. Quintessence Int 2013 Apr;44(4):295-302.
Post-operative bleaching: Effect on microleakage. Am J Dent 1992 Apr;5(2):109-112.
3rd. Postoperative dental bleaching: Effect of microleakage on class V tooth colored restorative materials. J Tenn Dent Assoc 1998 Oct;78(4):36-40.
Durability of enamel bond strength of simplified bonding systems. Oper Dent 2000 Mar-Apr;25(2):75-80.
Effect of a whitening agent application on enamel bond strength of self-etching primer systems. Am J Dent 2004 Jun;17(3):151-155.
Extent of polymerization of dental bonding systems on bleached enamel. Am J Dent 2007 Aug;20(4):275-280.
Effect of different adhesive systems and laser treatment on the shear bond strength of bleached enamel. J Dent 2009 Jul;37(7):527-534.
Effect of protective coating on marginal integrity of nanohybrid composite during bleaching with carbamide peroxide: A microleakage study. Indian J Dent Res 2015 Mar-Apr;26(2):167-169.
Effect of pre-and postoperative bleaching on marginal leakage of amalgam and composite restorations. Quintessence Int 2003 Jul-Aug;34(7):505-508.
Influence of carbamide peroxide-based bleaching agents on the bond strength of resin-enamel/dentin interfaces. Braz Oral Res 2005 Jan-Mar;19(1):23-29.
Effect of postbleaching application of an antioxidant on enamel bond strength of three different adhesives. Med Oral Patol Oral Cir Bucal 2011 Nov;16(7):e990-e996.
Effect of three different mouthrinses on microleakage of composite resin restorations with two adhesive systems after bleaching with 10% carbamide peroxide. J Contemp Dent Pract 2012 Jan;13(1):16-22.
Standardizing laboratory adhesion tests. Am J Dent 1991 Oct;4(5):231-236.
Reliability of in vitro microleakage tests: a literature review. J Adhes Dent 2001 Winter;3(4):295-308.
Systematic reviews: I. The correlation between laboratory tests on marginal quality and bond strength. II. The correlation between marginal quality and clinical outcome. J Adhes Dent 2007 Feb;9(Suppl 1):77-106.
Dental materials-testing of adhesion to tooth structure. Geneva: ISO; 2003.
External bleaching therapy with activation by heat, light or laser – a systematic review. Dent Mater 2007 May;23(5):586-596.
Effect of postoperative bleaching on microleakage of etch-and-rinse and self-etch adhesives. Dent Res J (Isfahan) 2011 Winter;8(1):16-21.
Effect of 30% hydrogen peroxide on marginal integrity of silorane-based versus methacrylate-based composite restorations. J Dent (Tehran) 2014 Sep;11(5):545-553.
