title: Erosion and abrasion on dental structures undergoing at-home bleaching.
abstract: This review investigates erosion and abrasion in dental structures undergoing at- home bleaching. Dental erosion is a multifactorial condition that may be idiopathic or caused by a known acid source. Some bleaching agents have a pH lower than the critical level, which can cause changes in the enamel mineral content. Investigations have shown that at-home tooth bleaching with low concentrations of hydrogen or carbamide peroxide have no significant damaging effects on enamel and dentin surface properties. Most studies where erosion was observed were in vitro. Even though the treatment may cause side effects like sensitivity and gingival irritation, these usually disappear at the end of treatment. Considering the literature reviewed, we conclude that tooth bleaching agents based on hydrogen or carbamide peroxide have no clinically significant influence on enamel/dentin mineral loss caused by erosion or abrasion. Furthermore, the treatment is tolerable and safe, and any adverse effects can be easily reversed and controlled.
authors.affiliation: Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Brazil.
authors.forename: Flávio Fernando
authors.initials: FF
authors.lastname: Demarco
authors.forename: Sônia Saeger
authors.initials: SS
authors.lastname: Meireles
authors.forename: Hugo Ramalho
authors.initials: HR
authors.lastname: Sarmento
authors.forename: Raquel Venâncio Fernandes
authors.initials: RV
authors.lastname: Dantas
authors.forename: Tatiana
authors.initials: T
authors.lastname: Botero
authors.forename: Sandra Beatriz Chaves
authors.initials: SB
authors.lastname: Tarquinio
keywords: abrasion; dentin; enamel; erosion; peroxide; tooth bleaching