Comparison of treatment time versus patient satisfaction in at-home and in-office tooth bleaching therapy.

Autor: Bernardon JK; Professor, Operative Dentistry, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil. Electronic address: jussara_bernardon@yahoo.com.br., Ferrari P; Graduate student, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil., Baratieri LN; Professor and Chair, Operative Dentistry, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil., Rauber GB; Doctoral student, Operative Dentistry, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil.
Jazyk: angličtina
Zdroj: The Journal of prosthetic dentistry [J Prosthet Dent] 2015 Dec; Vol. 114 (6), pp. 826-30. Date of Electronic Publication: 2015 Sep 12.
DOI: 10.1016/j.prosdent.2015.05.014
Abstrakt: Statement of the Problem: There are different approaches and treatment times to achieve tooth whitening.
Purpose: The purpose of this study was to evaluate the efficacy of different agents and the treatment time required to achieve participant satisfaction with at-home and in-office tooth whitening.
Material and Methods: Thirty participants were selected based on the shade of the anterior teeth (between A2 and A3.5; Vita Classic Shade Guide). Each participant received both in-office and at-home bleaching agents in a split-mouth design at both arches. In-office bleaching was performed in the maxillary quadrants, applying 35% hydrogen peroxide (HP35%) (right) and 35% HP with calcium (HP35%Ca) (left) for 40 minutes/week. Home bleaching was performed in mandibular quadrants using carbamide peroxide 10% (CP10%) (right) and CP22% (left) for 2 hours/day. Bleaching treatments were performed until participant satisfaction was achieved (maximum 6 sessions [S] in the dental office or 6 weeks [W] in the home). The shade was measured with a spectrophotometer before treatment, then at 2 and 4 weeks, and at the last week for at-home bleaching; and 1 week after the second, fourth, and last sessions for in-office bleaching. Student t and Tukey-Kramer tests were used (α=.05).
Results: All bleaching agents were effective for vital tooth whitening. No significant differences were observed for color changes between CP10% and CP22% or between HP35% and HP35%Ca for all periods. Treatment times required to achieve patient satisfaction for the in-office bleaching technique were 4S (12 participants), 5S (10 participants), and 6S (8 participants); and 4W (6 participants), 5W (8 participants), and 6W (16 participants) for the at-home bleaching technique.
Conclusions: Treatment time to participant satisfaction ranged from 4 to 6 weeks regardless of the bleaching agent used in at-home and in-office therapy.
(Copyright © 2015 Editorial Council for the Journal of Prosthetic Dentistry. Published by Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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