Treatment after bleaching for optimal bonding

Ho-Jin Moon

doi:10.5395/rde.2015.40.2.177

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Readers' Forum Treatment after bleaching for optimal bonding: Ho-Jin Moon; Restorative Dentistry & Endodontics 2015;40(2):177-178.
DOI: https://doi.org/10.5395/rde.2015.40.2.177
Published online: March 24, 2015

Dankook University, Korea.

©Copyrights 2015. The Korean Academy of Conservative Dentistry.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Q.
A.
Acknowledgement
REFERENCES

Q.

I am aware of sodium hydroxide treatment after walking bleaching. I wonder, in case of laminate veneering after office or home bleaching, what kind of surface treatment is recommended for successful bonding?

A.

Regardless of bleaching regimes, the bond strength of composite resin or resin cement is reduced when bonding procedure is performed immediately after whitening.1,2,3,4,5,6,7,8,9,10,11,12 It is believed that the polymerization via free-radical mechanism is impeded by nascent oxygen remnant and peroxide in the bleached dental hard tissue.13 Because sodium hydroxide is used as a buffering agent to control the decreased pH, it does not guarantee optimal bonding.5 To handle compromised bond strength of pre-bleached dental hard tissue, use antioxidant like sodium ascorbate.2,5,7,8,9,14,15 As a practical approach, place 10% sodium ascorbate on the bleached surface for 10 minutes with agitation and rinse it with water before bonding.2

Acknowledgement

Readers' forum is edited by Professor Kyung-Mo Cho (Gangneung-Wonju National University).

REFERENCES

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14. Freire A, Souza EM, de Menezes Caldas DB, Rosa EA, Bordin CF, de Carvalho RM, Vieira S. Reaction kinetics of sodium ascorbate and dental bleaching gel. J Dent 2009;37:932-936. Article PubMed
15. Sgura R, Taddeo F, de Moura NC, Tapety CMC, Rodrigues Júnior EC, Medeiros IS. Effect of sodium ascorbate and ascorbic acid hydrogels on microleakage of composite restorations after an office bleaching protocol. Clin Lab Res Dent 2014;20:4-9.Article

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Treatment after bleaching for optimal bonding

Restor Dent Endod. 2015;40(2):177-178. Published online March 24, 2015

DOI: https://doi.org/10.5395/rde.2015.40.2.177

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Treatment after bleaching for optimal bonding