title: In-Office Bleaching During Orthodontic Treatment.
abstract: OBJECTIVE
  To demonstrate that it is possible to pursue teeth whitening treatment protocols during orthodontic treatment with no esthetic loss.
  
  
  METHODS
  Many patients undergoing orthodontic treatment desire to have a straight and well aligned dentition, but also whiter teeth. For many years, it was believed that carrying out a whitening treatment with positioned orthodontic brackets in place would result in localized spots on the enamel labial surfaces of teeth. However, a deeper understanding of the bleaching process suggests that the oxidation caused by products, which results from hydrogen peroxide decomposition, are able to diffuse peripherally into the tooth structure and reach even that under the cemented brackets. Two in-office-bleaching treatments were performed in patients using orthodontic fixed braces in two or three 40-minute sessions using a 35% hydrogen peroxide.
  
  
  CONCLUSIONS
  In-office bleaching is possible and effective, even with orthodontic brackets in position. The teeth were successfully bleached despite the presence of brackets. All biological criteria have been fulfilled satisfying patients' expectations of aligned and whitened teeth in less time than if treatments had been performed separately, with satisfactory results and no esthetic loss.
  
  
  CONCLUSIONS
  The whitening of teeth is possible during orthodontic treatment with fixed braces without any esthetic loss. The in-office bleaching treatment with brackets in position also may act as a motivation factor, preventing patient withdrawal or treatment interruption. Therefore, at the end of the orthodontic treatment, the patient is able to display an aligned, functional and whitened smile. (J Esthet Restor Dent 29:83-92, 2017).
authors: Dental Materials, USP-University of São Paulo, Specialist in Dentistry-CETAO, Brazilian Air Force Dentist-NUHFASP, APCD- Paulista Dental Association, São Paulo, Brazil.
authors: Mauricio Neves
authors: MN
authors: Gomes
authors: UMC-University of Mogi das Cruzes, APCD-Paulista Dental Association, São Paulo, Brazil.
authors: Hélio
authors: H
authors: Dutra
authors: Dentistry, UNG-University of Guarulhos, APCD-Paulista Dental Association, São Paulo, Brazil.
authors: Alexandre
authors: A
authors: Morais
authors: Dental Materials, USP, University of São Paulo Discipline of Dental Materials, School of Dentistry, UNINOVE-University Nove de Julho, São Paulo, Brazil.
authors: Ricardo
authors: R
authors: Sgura
authors: Dental Materials, USP, University of São Paulo, APCD-Paulista Dental Association, São Paulo, Brazil Discipline of Dental Materials, School of Dentistry, UNINOVE-University Nove de Julho, São Paulo, Brazil.
authors: André Guaraci
authors: AG
authors: Devito-Moraes
mesh_terms: D000293:Adolescent; D005260:Female; D006801:Humans; D009819:Office Visits; D016910:Orthodontic Brackets; D009970:Orthodontics; D014073:Tooth Bleaching