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The Effectiveness of At-home , In-office and Combined Dental Bleaching System ：A Randomized Controlled Clinical Trial

Tooth Bleaching Clinical Trial

Official title:
The Effectiveness of At-home , In-office and Combined Dental Bleaching System ：A Randomized Controlled Clinical Trial

Clinical Trial Summary

This randomized controlled clinical trial aimed to investigate the effectiveness of at-home , in-office and combined dental bleaching system.

Clinical Trial Description

The participants with at least one maxillary tooth demonstrating shade A3 or darker will be recruited and randomly allocated into 4 groups according to the different tooth bleaching protocol：at-home bleaching for group 1,in-office bleaching for group 2 ,combined bleaching for group 3 and group 4.Participates in group 1 will receive two weeks of at-home tooth bleaching （Lasts 14 days and at least 8 hours every day ）with 10% Carbamide peroxide(Opalescence PF 10%) , group 2 will receive two sessions （with a 1- week interval ）of in-office tooth bleaching with 40% hydrogen peroxide (Opalescence Boost PF 40%)，group 3 will receive one week of at-home tooth bleaching （Lasts 7 days and at least 8 hours every day ）and then the eighth day receive one session of in-office tooth bleaching , group 4 receive one session of in-office bleaching and lasts 7 days at-home bleaching start on the eighth day . Colour parameters (CIE L*, a*, b*) will be measured with a spectrophotometer (Vita Easyshade Advance 4.0) at baseline (T1), after the first bleaching session (T2), after the second bleaching session (T3), 1 month after the completion of bleaching (T4). CIEDE2000 colour difference (△E00), the Whiteness Index for Dentistry (WID) and Tooth sensitivity (TS) will also be calculated. The data will be statistically analysed through repeated ANOVA and Tukey's test (α = 0.05). ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT05021965
Study type Interventional
Source Fujian Medical University
Contact
Status Completed
Phase N/A
Start date July 15, 2021
Completion date March 14, 2022
View Details
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