Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2019 Jul-Aug;16(4):245-250.

Bleaching during orthodontic treatment and its effect on bracket bond strength

Ahmadreza Sardarian  1 , Behnam Malekpour  2 , Ali Roshan  2 , Shahla Momeni Danaei  1
Affiliations

Bleaching during orthodontic treatment and its effect on bracket bond strength

Ahmadreza Sardarian et al. Dent Res J (Isfahan). 2019 Jul-Aug.

Abstract

Background: This study investigated the effect of two different methods of bleaching during orthodontic treatment on bracket bond strength.

Materials and methods: A total of 45 extracted premolar teeth were selected in this experimental study and divided into three groups (office bleaching with 35% hydrogen peroxide, home bleaching with 22% carbamide peroxide, and control). The color of the teeth was assessed initially before the application of bleaching agents and Thermocycling. Orthodontic brackets were subsequently bonded on the treated surfaces. Bleaching procedures were then performed. A final color measurement was performed at two points on the buccal surface both underneath and adjacent to the bracket base. The initial and final color measurements and the bond strengths were compared between the groups using the analysis of variance. P < 0.05 was considered as statistically significant.

Results: Bracket bond strength was significantly reduced in both bleaching groups compared with the control group (P < 0.01). The color difference before and after the bleaching procedures was significant in the office bleaching group (P < 0.01), while the control group did not demonstrate a statistical difference between initial and final color assessments (P > 0.05).

Conclusion: Bleaching procedures performed during orthodontic treatment reduce bond strength. Enamel beneath the bracket base experiences a whitening effect though to a lesser degree compared with an uncovered surface.

Keywords: Bleaching; bond strength; orthodontic brackets.

PubMed Disclaimer

References

    1. Abdulkareem MR. Effects of three different types of intracoronal bleaching agents on shear bond strength of stainless steel and sapphire brackets bonded to endodontically treated teeth (An in vitro study) J Baghdad Coll Dent. 2014;26:149–55.
    1. Cörekçi B, Irgın C, Malkoç S, Oztürk B. Effects of staining solutions on the discoloration of orthodontic adhesives: An in vitro study. Am J Orthod Dentofacial Orthop. 2010;138:741–6. - PubMed
    1. Karamouzos A, Athanasiou AE, Papadopoulos MA, Kolokithas G. Tooth-color assessment after orthodontic treatment: A prospective clinical trial. Am J Orthod Dentofacial Orthop. 2010;138:537.e1–8. - PubMed
    1. Trakyali G, Ozdemir FI, Arun T. Enamel colour changes at debonding and after finishing procedures using five different adhesives. Eur J Orthod. 2009;31:397–401. - PubMed
    1. Gomes MN, Dutra H, Morais A, Sgura R, Devito-Moraes AG. In-office bleaching during orthodontic treatment. J Esthet Restor Dent. 2017;29:83–92. - PubMed

LinkOut - more resources