Colorimetric evaluation after in-office tooth bleaching with violet LED: 6- and 12-month follow-ups of a randomized clinical trial

Abstract This study aimed to evaluate the effect on oral health-related quality of life (OHRQoL) of two treatment protocols for dental fluorosis in individuals enrolled in a randomized clinical trial. Seventy volunteers, who lived in a fluorosis endemic area in Brazil, and had at least four maxillary anterior teeth showing fluorosis with a Thylstrup and Fejerskov index from 1 to 7, were randomized into two treatment groups (n= 35): GI- enamel microabrasion; or GII- microabrasion associated with at-home bleaching. Microabrasion was performed using 37% phosphoric acid and pumice, and at-home tooth bleaching with 10% carbamide peroxide in a tray. Volunteers completed a questionnaire at baseline and 1-month post treatment to assess changes in OHRQoL, using the Oral Impact on Daily Performance (OIDP). Differences in overall impact scores between and within treatment groups were analyzed with Wilcoxon (within) and Mann-Whitney (between) tests. Changes in performance scores were analyzed using Wilcoxon tests (a< 0.05). One month after treatment, subjects reported improvement in OHRQoL. Both groups showed lower OIDP scores (p< 0.001), but there was no difference between them. Eating, cleaning teeth, smiling and emotional state performance scores were lower after treatment for the whole sample. In conclusion, the treatment with microabrasion improved the OHRQoL in this sample of individuals living in a fluorosis endemic area regardless of the addition of at-home bleaching.

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Effectiveness of 6% hydrogen peroxide concentration for tooth bleaching—A double-blind, randomized clinical trial

Journal of Dentistry ◽

10.1016/j.jdent.2015.05.011 ◽

2015 ◽

Vol 43 (8) ◽

pp. 965-972 ◽

Cited By ~ 40

Author(s):

J. Martín ◽

P. Vildósola ◽

C. Bersezio ◽

A. Herrera ◽

J. Bortolatto ◽

...

Keyword(s):

Clinical Trial ◽

Hydrogen Peroxide ◽

Randomized Clinical Trial ◽

Tooth Bleaching ◽

Double Blind

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Influence of different thickeners in at-home tooth bleaching: a randomized clinical trial study

Clinical Oral Investigations ◽

10.1007/s00784-018-2613-9 ◽

2018 ◽

Vol 23 (5) ◽

pp. 2187-2198

Author(s):

Juliana do Carmo Públio ◽

Marília Zeczkowski ◽

Jonny Burga-Sánchez ◽

Gláucia Maria Bovi Ambrosano ◽

Franscico Carlos Groppo ◽

...

Keyword(s):

Clinical Trial ◽

Randomized Clinical Trial ◽

Tooth Bleaching ◽

At Home

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A double-blind randomized clinical trial of two carbamide peroxide tooth bleaching agents: 2-year follow-up

Journal of Dentistry ◽

10.1016/j.jdent.2010.08.003 ◽

2010 ◽

Vol 38 (12) ◽

pp. 956-963 ◽

Cited By ~ 52

Author(s):

S.S. Meireles ◽

I.S. Santos ◽

A. Della Bona ◽

F.F. Demarco

Keyword(s):

Clinical Trial ◽

Randomized Clinical Trial ◽

Tooth Bleaching ◽

Carbamide Peroxide ◽

Double Blind ◽

Tooth Bleaching Agents

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Association Between In-Office And At-Home Tooth Bleaching: A Single Blind Randomized Clinical Trial

Brazilian Dental Journal ◽

10.1590/0103-6440201801726 ◽

2018 ◽

Vol 29 (2) ◽

pp. 133-139 ◽

Cited By ~ 7

Author(s):

João Lima Rodrigues ◽

Patrícia Souza Rocha ◽

Silvia Letícia de Souza Pardim ◽

Ana Cláudia Vieira Machado ◽

André Luis Faria-e-Silva ◽

...

Keyword(s):

Clinical Trial ◽

Randomized Clinical Trial ◽

Rating Scale ◽

Maximum Level ◽

Tooth Bleaching ◽

Tooth Color ◽

Color Changes ◽

Bleaching Procedure ◽

To Receive ◽

At Home

Abstract This controlled randomized clinical trial evaluated the effect of associating at-home and in-office bleaching procedures on tooth sensitivity (TS) and bleaching effectiveness. Forty patients subjected to on session of in-office bleaching with 38% peroxide hydrogen. Subsequently, the patients were randomly allocated to receive a second session of in-office bleaching or to use a tray containing 10% carbamide peroxide delivered during 7 consecutive days. The worst TS score reported during or after each bleaching procedure was recorded using a verbal rating scale and TS risk (score different from 0) was calculated. Color changes were measured 7 days after each in-office session (for patients receiving in-office procedures only) or after the end of at-home bleaching (for the combined protocol), and 6 months after the last procedure for both bleaching protocols. Color was assessed by a spectrophotometer and by color match with the Vita Classical and Bleach guide scales. Statistical analyses were carried out to assess possible differences between the protocols regarding the outcomes and to analyze the effect of time of assessment on color changes. The bleaching protocol did not affect the risk for and the maximum level of TS reported, irrespective of the time of assessment. In the color evaluation, the bleaching protocol also did not affect the ultimate tooth color. In conclusion, after one in-office bleaching session, there was no difference in bleaching effectiveness and TS between performing a second in-office session and associating it with 1-week at-home bleaching.

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