title: Nonvital tooth bleaching with halogen light-activated agents: case reports and discussion.
abstract: Esthetic dentistry has received increased attention in recent years, as people are more aware of the esthetic appearance of their teeth, including alignment and whiteness. This development, combined with a decrease in the incidence and severity of caries, has directed some clinicians toward conservative and non-invasive treatments such as tooth bleaching. A number of methods for nonvital tooth bleaching are described in the literature; these procedures rely on the bleaching agent used, the agent's concentration, product format, and the source of light activation. This article presents two case reports in which dental bleaching with halogen light-activated agents was used to treat a nonvital discolored incisor. The advantages and disadvantages of the technique are discussed.
authors.affiliation: Department of Operative Dentistry, Federal University of Paraiba, Joao Pessoa, PB, Brazil.
authors.forename: Sonia Saeger
authors.initials: SS
authors.lastname: Meireles
authors.forename: Flavio Fernando
authors.initials: FF
authors.lastname: Demarco
authors.forename: Sandra Beatriz Chaves
authors.initials: SB
authors.lastname: Tarquinio
mesh_terms: D000328:Adult; D055117:Curing Lights, Dental; D006219:Halogens; D006801:Humans; D006861:Hydrogen Peroxide / Q000737:chemistry / Q000528:radiation effects; D008297:Male; D017319:Photosensitizing Agents; D014073:Tooth Bleaching / Q000379:methods*; D058205:Tooth Bleaching Agents / Q000737:chemistry / Q000528:radiation effects; D014075:Tooth Discoloration / Q000628:therapy; D019553:Tooth, Nonvital; D055815:Young Adult
chemical_list: D006219:Halogens; D017319:Photosensitizing Agents; D058205:Tooth Bleaching Agents; D006861:Hydrogen Peroxide