In-office bleaching varying the number and time of applicatio

Not Applicable

Recruiting

• Conditions: C07.793.735; Dental Aesthetics; Dentin sensitivity

• Registration Number: RBR-5bj464v
• Lead Sponsor: niversidade Estadual de Ponta Grossa

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2022-07-14
• Study Completion: 2022-09-01
• Last Update Posted: 29 May 2023

Recruitment & Eligibility

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

Inclusion Criteria

Volunteers of both genders will be included in the study; with a minimum age of 18 years; with good general and oral health; with teeth free of carious lesions; gingival recessions and periodontal disease in the anterior region; who agree with the informed consent (ICF) and one of their canines must be A2 or darker according to the Vita Classical scale (Vita Zahnfabrik, Bad Säckingen, Germany)

Exclusion Criteria

Volunteers who have performed a bleaching procedure previously will be excluded from the study; who have reported the presence of previous tooth sensitivity; presence of dental prosthesis; fixed orthodontic appliance; restorations in maxillary anterior teeth; endodontic treatment in maxillary anterior teeth; gingival recessions; teeth with tetracycline staining or fluorosis; visible cracks in the teeth; continuous use of medications such as analgesics and anti-inflammatories; pregnant or lactating women and those with habits such as bruxism or smokers

Study & Design

• Study Type: Intervention
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
To evaluate the bleaching efficacy, using the Vita Classical, Vita Bleachedguide (?SGU) and VitaEasyshade spectrophotometer (?Eab, ?E00 and ?WID) scales of volunteers submitted to different in-office bleaching protocols (two sessions with 2 applications of 20 minutes, 1 application of 30 minutes or 1 application of 40 minutes).

Secondary Outcome Measures

Name	Time	Method
To evaluate the absolute risk and the intensity of dental sensitivity, through the Visual Analogue Scale (VAS) of volunteers submitted to different in-office bleaching protocols.;To evaluate the absolute risk and intensity of gingival irritation, using the Visual Analogue Scale (VAS) of volunteers submitted to different in-office bleaching protocols.;To evaluate the aesthetic self-perception before and after bleaching, using the Orofacial Aesthetics Scale (OAS) of volunteers submitted to different in-office bleaching protocols.;To evaluate the impact of oral condition before and after bleaching, using the Brazilian version of the Oral Health Impact Profile (OHIP-14) of volunteers submitted to different in-office bleaching protocols