title: Impact of toothbrushing with a dentifrice containing calcium peroxide on enamel color and roughness.
abstract: This in vitro study sought to evaluate both the bleaching potential and changes to average surface roughness (Ra) of enamel after brushing with a dentifrice. Fifty-four enamel specimens (4 x 4 x 2 mm) were divided into 3 groups (n = 18) and treated with 1 of 3 dentifrices: 1 with calcium peroxide, and 2 without. The samples were submitted to 20,000 brushing cycles. Color and Ra were measured before and after brushing. Although the Ra increased in all groups after brushing, only the dentifrice containing calcium peroxide resulted in an increase in reflectance.
authors.forename: Diala Aretha de Sousa
authors.initials: DA
authors.lastname: Feitosa
authors.forename: Boniek Castillo Dutra
authors.initials: BC
authors.lastname: Borges
authors.forename: Fabio Henrique de Sa Leitao
authors.initials: FH
authors.lastname: Pinheiro
authors.forename: Rosangela Marques
authors.initials: RM
authors.lastname: Duarte
authors.forename: Renato Evangelista de
authors.initials: RE
authors.lastname: Araujo
authors.forename: Rodivan
authors.initials: R
authors.lastname: Braz
authors.forename: Maria Carmo Moreira da Silva
authors.initials: MC
authors.lastname: Santos
authors.forename: Marcos Antonio Japiassu Resende
authors.initials: MA
authors.lastname: Montes
mesh_terms: D003116:Color; D003743:Dental Enamel / Q000187:drug effects*; D003802:Dentifrices / Q000627:therapeutic use*; D006801:Humans; D066298:In Vitro Techniques; D010545:Peroxides / Q000627:therapeutic use*; D013499:Surface Properties / Q000187:drug effects; D058205:Tooth Bleaching Agents / Q000627:therapeutic use; D014099:Toothbrushing / Q000379:methods*
chemical_list: D003802:Dentifrices; D010545:Peroxides; D058205:Tooth Bleaching Agents; C403632:calcium peroxide
keywords: dentifrice; roughness; spectrophotometry; tooth whitening