Will whitening affect bond strength?
Even though whitening agents release a great amount of oxygen into the tooth, existing bonds are not weakened.2,3
If whitening before bonding, allow a period of 7–10 days after whitening. The high concentration of oxygen in the tooth could significantly and adversely affect polymerization of the resins.4,5
2. Klukowska M, White DJ, Kozak KM, Zoladz JR, Baker RA, Garcia-Godoy F, et al. Effect of bleach on microleakage of Class V composite restorations. J Dent Res. 85(Spec Iss B):0035, 2006 (www.dentalresearch.org).
3. Angerame D, Garaffa S, Maglione M, Di Lenarda R, De Stefano Dorigo E. Effect of in-office bleaching on Class V composite restorations seal. J Dent Res. 84(Spec Iss A):3013, 2005 (www.dentalresearch.org).
4. Wilson D, Xu C, Hong L, Wang Y. Effects of clinical factors during tooth whitening on enamel. J Dent Res. 86(Spec Iss A):2632, 2007 (www.dentalresearch.org).
5. Lim B-S, Ryu I, Lee Y-K, Rhee S-H, Yang H-C, Ahn S-J et al. Effect of bleaching agent on shear bond strength to dentin. J Dent Res. 85(Spec Iss B):0036, 2006 (www.dentalresearch.org).
