Your browser doesn't support javascript.
loading
A double-blind randomized controlled clinical trial of 10 percent versus 16 percent carbamide peroxide tooth-bleaching agents: one-year follow-up.
Meireles, Sônia Saeger; dos Santos, Iná da Silva; Della Bona, Alvaro; Demarco, Flávio Fernando.
Afiliação
  • Meireles SS; Department of Operative Dentistry, Federal University of Paraíba, João Pessoa, Paraíba, Brazil.
J Am Dent Assoc ; 140(9): 1109-17, 2009 Sep.
Article em En | MEDLINE | ID: mdl-19723943
BACKGROUND: The use of high-concentration tooth-bleaching agents has been associated with increased longevity of the whitening effect. The authors conducted a randomized controlled clinical trial to evaluate the longevity of the whitening effect at one year of two at-home tooth-bleaching agents. METHODS: The authors randomly assigned 92 participants with a mean shade of C1 or darker for six maxillary anterior teeth into two equal-sized groups according to carbamide peroxide concentration: 10 percent (CP10) or 16 percent (CP16). Treatment involved the use of a whitening agent in a tray for two hours daily for three weeks. The authors evaluated tooth shade with a shade guide and a spectrophotometer at baseline and one week, six months and one year after bleaching. Participants in both groups answered questions about their dietary and oral hygiene behaviors. RESULTS: At the one-year recall appointment, the teeth in both groups remained significantly lighter than at baseline. At this time, participants from the CP10 and CP16 groups consumed staining beverages and foods at a level as high as at the six-month recall appointment, and this consumption level was not statistically significant between groups (P > .5). CONCLUSIONS: One year after bleaching, both treatment groups had the same median tooth shade, which remained lighter than at baseline. CLINICAL IMPLICATIONS: Higher carbamide peroxide concentration does not increase the longevity of the whitening effect of at-home tooth-bleaching agents.
Assuntos
Buscar no Google
Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Peróxidos / Clareamento Dental / Ureia / Oxidantes Tipo de estudo: Clinical_trials / Observational_studies / Prognostic_studies / Risk_factors_studies Limite: Adolescent / Adult / Female / Humans / Male / Middle aged Idioma: En Revista: J Am Dent Assoc Ano de publicação: 2009 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Buscar no Google
Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Peróxidos / Clareamento Dental / Ureia / Oxidantes Tipo de estudo: Clinical_trials / Observational_studies / Prognostic_studies / Risk_factors_studies Limite: Adolescent / Adult / Female / Humans / Male / Middle aged Idioma: En Revista: J Am Dent Assoc Ano de publicação: 2009 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido