The Effect of Office Bleaching on the Color and Bond Strength of Resin Restorations

The Effect of Office Bleaching on the Color and Bond Strength of Resin Restorations Publisher

Alaghehmand H¹ ; Rohaninasab M² ; Bijani A³

Show Affiliations

1. Dental Materials Research Center, Department of Esthetic and Restorative Dentistry, Babol University of Medical Science, Babol, Iran
2. Department of Esthetic and Restorative Dentistry, Dental School of Tehran University of Medical Science, International Campus, Tehran, Iran
3. Social Determinant of Health Research Center, Babol University of Medical Science, Babol, Iran

Source: Dental Research Journal Published:2019

Abstract

Background: Bleaching may affect the bond strength of existing composite fillings and may weaken it. Hence, the aim of this study was to find the best method of in-office bleaching with the least effect on microshear bond strength (MSBS) of existing composite resin fillings to tooth structure. Materials and Methods: In this in vitro study, Class V cavities were prepared on buccal surface of 50 extracted third human sound molars. The cavities in 25 teeth had enamel axial walls, Group E, which were divided into five subgroups of E1 through E5 and in 25 teeth had dentin axial walls, Group D, which were divided into five subgroups of D1 through D5. Cavities were treated with Single Bond 2 adhesive system and restored with composite resin (Z250). The corresponding subgroups received similar bleaching methods and materials; 1-not bleached, 2-hydrogen peroxide (HP) 25%, 3-HP + ultraviolet light, 4-HP + light-emitting diode-curing device, and 5-HP + diode laser. Teeth colors were monitored before and after bleaching, and MSBS test and failure modes were examined. Results were analyzed with one-way ANOVA and Kruskal-Wallis tests. P < 0.05 was considered significant. Results: One-way ANOVA did not show differences in MSBS of enamel subgroups but showed significant differences in dentin subgroups (P < 0.00). Adhesive fracture in all of the subgroups was the most frequent mode of failure. Kruskal-Wallis test showed that laser was the most effective instrument to change ΔE. Conclusion: Diode laser was the best method for tooth bleaching because lowering the shear bond strength between composite resin and enamel was minimum and also had the most ΔE in tooth bleaching. © 2019 Dental Research Journal.

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Style	Citing Format
MLA	Alaghehmand H, Rohaninasab M, Bijani A. "The Effect of Office Bleaching on the Color and Bond Strength of Resin Restorations." Dental Research Journal, vol. 16, no. 1, 2019, pp. 47-52.
APA	Alaghehmand H, Rohaninasab M, Bijani A (2019). The Effect of Office Bleaching on the Color and Bond Strength of Resin Restorations. Dental Research Journal, 16(1), 47-52.
Chicago	Alaghehmand H, Rohaninasab M, Bijani A. "The Effect of Office Bleaching on the Color and Bond Strength of Resin Restorations." Dental Research Journal 16, no. 1 (2019): 47-52.
Harvard	Alaghehmand H, Rohaninasab M, Bijani A (2019) 'The Effect of Office Bleaching on the Color and Bond Strength of Resin Restorations', Dental Research Journal, 16(1), pp. 47-52.
Vancouver	Alaghehmand H, Rohaninasab M, Bijani A. The Effect of Office Bleaching on the Color and Bond Strength of Resin Restorations. Dental Research Journal. 2019;16(1):47-52.
BibTex	@article{ author = {Alaghehmand H and Rohaninasab M and Bijani A}, title = {The Effect of Office Bleaching on the Color and Bond Strength of Resin Restorations}, journal = {Dental Research Journal}, volume = {16}, number = {1}, pages = {47-52}, year = {2019} }
RIS	TY - JOUR AU - Alaghehmand H AU - Rohaninasab M AU - Bijani A TI - The Effect of Office Bleaching on the Color and Bond Strength of Resin Restorations JO - Dental Research Journal VL - 16 IS - 1 SP - 47 EP - 52 PY - 2019 ER -

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