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Clinical Oral Investigations

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01-01-2020 | Bleaching | Original Article

Bleaching-induced tooth sensitivity with application of a desensitizing gel before and after in-office bleaching: a triple-blind randomized clinical trial

Authors: E. C. Martini, S. O. Parreiras, A. L. Szesz, F. M. Coppla, A. D. Loguercio, Alessandra Reis

Published in: Clinical Oral Investigations | Issue 1/2020

Abstract

Objectives

This randomized triple-blind clinical trial, split-mouth design, evaluated the application effect of the desensitizing gel before and after in-office bleaching on tooth sensitivity.

Materials and methods

In one group, the desensitizing gel was applied for 10 min before the bleaching with 35% hydrogen peroxide, and then application of placebo gel after (n = 90). In the other group, the desensitizing gel was applied before and after the bleaching procedure for 10 min (n = 90). The primary outcome was pain intensity assessed with a numeric rating scale and a visual analog scale. Color was evaluated by means of a digital spectrophotometer and a shade guides.

Results

The proportion of patients that experienced pain in the side of before application was 90% (95% CI 82 to 94.6%), while the side of before and after was 93% (95% CI 86.2 to 96.9%), without significant difference between groups (OR = 0.25; 95% CI 0.005 to 2.52; p = 0.37). Pain was correlated in both groups, for the NRS scale (p < 0.0001) and the VAS scale (p < 0.0001) in all assessment periods. Significant whitening was detected, and no significant difference of color change was observed between groups (p > 0.45).

Conclusions

The application of the desensitizing agent did not influence the effectiveness of bleaching, but it was not efficient in reducing the sensitivity, when applied before the procedure, or before and after.

Clinical relevance

The use of a desensitizing gel before or after in-office bleaching does not reduce incidence or intensity of tooth sensitivity.

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Title: Bleaching-induced tooth sensitivity with application of a desensitizing gel before and after in-office bleaching: a triple-blind randomized clinical trial
Authors: E. C. Martini
S. O. Parreiras
A. L. Szesz
F. M. Coppla
A. D. Loguercio
Alessandra Reis
Publication date: 01-01-2020
Publisher: Springer Berlin Heidelberg
Keywords: Bleaching
Nitrate
Published in: Clinical Oral Investigations / Issue 1/2020
Print ISSN: 1432-6981
Electronic ISSN: 1436-3771
DOI: https://doi.org/10.1007/s00784-019-02942-9

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Bleaching-induced tooth sensitivity with application of a desensitizing gel before and after in-office bleaching: a triple-blind randomized clinical trial

Abstract

Objectives

Materials and methods

Results

Conclusions

Clinical relevance

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Objectives

Materials and methods

Results

Conclusions

Clinical relevance

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