title: Tooth-bleaching procedures and their controversial effects: A literature review.
abstract: OBJECTIVE
  This review article will help clinicians improve their understanding of the history of bleaching procedures, bleaching types, components, mechanisms, and their effects on soft tissue, tooth structures, resin composite, and bonding.
  
  
  METHODS
  The controversial issues about bleaching procedures and their effects are reviewed. Additionally, the consequences of pre- and post-bleaching on the bonding potential of composite resin restorations to tooth structure are discussed.
  
  
  CONCLUSIONS
  The overall goal of the paper is to help reduce risks for patients.
authors.affiliation: Restorative Dental Sciences Department, College of Dentistry, King Saud University, Saudi Arabia.
authors.forename: Mohammed Q
authors.initials: MQ
authors.lastname: Alqahtani
keywords: Bleaching; Bonding; Post-bleaching; Pre-bleaching