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. 2023 Oct 13;23(1):758.
doi: 10.1186/s12903-023-03418-9.

Effect of bleaching treatments on the adhesion of orthodontic brackets: a systematic review

Michela Boccuzzi  1   2 , Alessandro Nota  1 , Saverio Cosola  3   4 , Giada De Simone  1 , Rosa Iozzo  1 , Laura Pittari  1   5 , Myoung Hwan Hwang  6 , Floriana Bosco  1 , Elisabetta Polizzi  1 , Simona Tecco  1
Affiliations

Effect of bleaching treatments on the adhesion of orthodontic brackets: a systematic review

Michela Boccuzzi et al. BMC Oral Health. .

Abstract

Background: Nowadays bleaching procedures have gained popularity in orthodontic patients. Peroxide and Carbamide acids are the common agents which are used in in-office and at home bleaching techniques. Consequently, the Bonding adhesion to the enamel can be influenced by the orthodontic phase and the residual peroxide might interfere with the polymerization and the adhesion of the brackets. Frequent debonding of the brackets from teeth after the bleaching procedure could cause the lengthening of the therapy and promote irregularities on enamel surface derived from an additional bonding phase of the brackets. The aim of this systematic review is to appraise the influence regarding the effect of the bleaching procedure on the bond strength of orthodontic brackets.

Methods: An electronic database search was performed. Search terms included: bleaching, brackets, adhesion; data were extracted and summarized. Risk of bias was assessed using the Chocrane risk of bias tool, adapted for in vitro studies.

Results: A total of 8689 articles were screened and 11 studies met the inclusion criteria of this systematic review. 1000 teeth of human and bovine origin were analyzed for the shear bond strength (SBS) of stainless and ceramic brackets after the bleaching treatments. All the authors divided the groups in different subgroups with different bleaching agents and in different concentration. The SBS value allowed to demonstrate the necessity to delay the bonding of the brackets for two weeks after a bleaching treatment and its improvement when tooth mousse or antioxidants agents are used.

Conclusions: The SBS values and the delay of the bonding procedure must be considered in dental practice and clinical strategies are necessary in order to avoid drawbacks which could cause the debonding of the brackets after bleaching due to the alterations of the dental substrate, thus interfering with the orthodontic treatments.

Keywords: Adhesion; Bleaching; Bracket.

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Conflict of interest statement

The authors declare no competing interests.

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