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Erschienen in: Clinical Oral Investigations 5/2024

01.05.2024 | Research

Bleaching efficacy of in-office dental bleaching with different application protocols: a single-blind randomized controlled trial

verfasst von: Michael Willian Favoreto, Camila Mendes Camargo, Heloisa Forville, Taynara de Souza Carneiro, Romina Ñaupari-Villasante, Michel Wendlinger, Alessandra Reis, Alessandro D. Loguercio

Erschienen in: Clinical Oral Investigations | Ausgabe 5/2024

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Abstract

Objective

This randomized controlled trial aimed to evaluate the equivalence in the color change, adverse effects, self-perception (AS) and the impact on oral condition (IO) of participants submitted to different application protocols of in-office dental bleaching.

Materials and methods

165 participants were bleached with a 35% hydrogen peroxide gel (Total Blanc Office One-Step, DFL), according to the following protocols: (1) 2 applications of 20-min each (2 × 20 min); (2) 1 × 40-min and; (3) 1 × 30-min. The color change was evaluated with the Vita Easyshade spectrophotometer, Vita Classical and Vita Bleachedguide scales. The intensity and risk of tooth sensitivity (TS) and gingival irritation (GI) were recorded using a 0–10 visual analogue scale (VAS). AS and IO was assessed before and after the bleaching procedure using the Orofacial Aesthetic Scale and Oral Health Impact Profile-14, respectively.

Results

Equivalent color change were observed (p < 0.001), with no significant difference between groups. The group 2 × 20 min presented the highest risk of TS (76%, 95% CI 63 to 85), compared to the 1 × 30 min (p < 0.04). The intensity of TS and GI and the risk of GI was similar between groups (p > 0.31). Irrespectively of the group (p = 0.32), significant improvements were observed for all items of AS and IO after bleaching (p < 0.02).

Conclusions

The 1 × 30 min protocol produced equivalent color change to the other bleaching protocols with reduced risk of TS and shorter application time.

Clinical relevance

A more simplified application regimen of a single application of 30 min yields effective bleaching and patient satisfaction while minimizing undesirable side effects and improving patient satisfaction.
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Metadaten
Titel
Bleaching efficacy of in-office dental bleaching with different application protocols: a single-blind randomized controlled trial
verfasst von
Michael Willian Favoreto
Camila Mendes Camargo
Heloisa Forville
Taynara de Souza Carneiro
Romina Ñaupari-Villasante
Michel Wendlinger
Alessandra Reis
Alessandro D. Loguercio
Publikationsdatum
01.05.2024
Verlag
Springer Berlin Heidelberg
Erschienen in
Clinical Oral Investigations / Ausgabe 5/2024
Print ISSN: 1432-6981
Elektronische ISSN: 1436-3771
DOI
https://doi.org/10.1007/s00784-024-05697-0

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