Clinical Trial Evaluating Color Change and Tooth Sensitivity Throughout and Following In-office Bleaching

Autor(es)

Machado, Lucas Silveira ^[1] ; de Oliveira, Fernanda Garcia ^[1] ; Rocha, Eduardo Passos ^[2] ; dos Santos, Paulo Henrique ^[2] ; Fraga Briso, Andre Luiz ^[1] ; Marcal Mazza Sundefeld, Maria Lucia ^[3] ; Sundfeld, Renato Herman ^[1]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ, Aracatuba Sch Dent, Dept Restorat Dent, Sao Paulo - Brazil

^[2] Sao Paulo State Univ, Aracatuba Sch Dent, Dept Dent Mat & Prosthodont, Sao Paulo - Brazil

^[3] Sao Paulo State Univ, Aracatuba Sch Dent, Dept Children & Social Dent, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: INTERNATIONAL JOURNAL OF PERIODONTICS & RESTORATIVE DENTISTRY; v. 33, n. 2, p. 209-U128, MAR-APR 2013.
• Citações Web of Science: 8

Resumo

The aim of this study was to assess the color alteration and sensitivity of teeth throughout and following in-office bleaching. Twenty-two volunteers participated in this clinical trial of bleaching treatment (35% hydrogen peroxide bleaching gel and placebo) applied on maxillary incisors and canines. According to a split-mouth design, the volunteers' maxillary hemi-arches received either the bleaching or placebo agent, applied four times, at 1-week intervals. Color alteration and tooth sensitivity were assessed throughout and following bleaching. Statistical calculations were performed using gamma distribution and repeated-measures ANOVA. There was a statistically significant difference between teeth submitted to a bleaching agent and placebo (P < .001). At the end of the first, second, third, and fourth sessions, the bleached teeth presented color scores statistically lower than those observed immediately before bleaching. There was no difference in the color scale scores of the bleached teeth between bleaching sessions. The sensitivity data test showed a significant difference among treatments (P < .0001). Color alteration and dental sensitivity were altered by the bleaching agent. (AU)

• Processo FAPESP: 09/03157-2 - Observação clínica da aplicação de um produto a base de peróxido de hidrogênio a 35% não fotoativado: efeitos na sensibilidade e na alteração de cor
• Beneficiário: Lucas Silveira Machado
• Modalidade de apoio: Bolsas no Brasil - Mestrado