Evaluation of Quantity decreased of Bleaching Agents during tray use in the At-home Bleaching customized and prefilled trays and presence of Bleaching agents in saliva: randomized clinical trial

Not Applicable

• Conditions: Discoloured teeth; K00.3

• Registration Number: RBR-34f49c
• Lead Sponsor: Instituto de Ciência e Tecnologia de São José dos Campos

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2018-02-20
• Last Update Posted: 29 May 2023

Recruitment & Eligibility

• Status: Recruitment completed
• Sex: Not specified
• Target Recruitment: Not specified

Inclusion Criteria

Patients older than 18 years old; good general health; do not present enamel erosion, dental abfraction, caries or periodontal disease; do not use orthodontic appliance or removable prostheses; present all teeth - First Molar to First Molar (Upper and Lower); avaiability of recurring returns; absence of gingival recession; submitted to bleaching for minimum period of 2 years.

Exclusion Criteria

Chemically dependent patients, nonsmokers and alcoholic ; medical condition that may interefere in patients' security during the study: use of drug therapy to chronic disease or allergic reaction to substances that will be used; pregnancy; participate of another study in the same time; presenting restorations in the six anterior teeth of each arch; frequent use of fluoride supplementation or desensitization substances; bruxism; periapical lesions; tooth sensitivity.

Study & Design

• Study Type: Intervention
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Expected outcome 1: The hydrogen peroxide degradation will be higher in upper trays than lower trays verified by sodium permanganate titration of bleaching gel, considering 50% of degradation in the first hour of use in the end of the study;Expected outcome 2: The presence of peroxide in saliva will be higher in prefilled trays than customized trays determined by 4-aminoantipirin reaction with saliva by analytical spectrophometer since the minimum presence of 0.26mg/kg in the end of the study

Secondary Outcome Measures

Name	Time	Method
Secondary outcomes are not expected