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Dental bleaching in patients with restored non-carious cervical lesions.

Tooth sensitivity and bleaching efficacy in patients with restored non-carious cervical lesions: a non-randomized clinical trial

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
REBEC
Registry ID
RBR-3wq9zxw
Enrollment
48
Registered
2026-03-10
Start date
2026-02-01
Completion date
Unknown
Last updated
2026-03-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dentin Sensitivity Esthetics, Dental

Interventions

Forty-eight volunteers will be recruited and will undergo dental prophylaxis. Subsequently, a soft tissue retractor will be placed to retract the lips and cheeks. A light-cured gingival barrier will b

Sponsors

Universidade Tuiuti do Paraná
Lead Sponsor
Universidade Tuiuti do Paraná
Collaborator

Eligibility

Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: Age equal to or greater than 18 years; good systemic and oral health; presence of the upper right canine with shade A2 or darker according to the Vita Classical shade guide; absence of restorations, cracks, or structural alterations in the anterior teeth for inclusion in the control group with sound teeth; presence of at least one non carious cervical lesion restored with composite resin in the anterior teeth for inclusion in the experimental group, with the restoration classified as good or excellent according to the World Dental Federation FDI criteria.

Exclusion criteria

Exclusion criteria: Presence of periodontal disease, carious lesions, visible cracks, fractures, previous endodontic treatment, or extensive restorations in the anterior teeth; use of orthodontic appliances or dental prostheses; severe intrinsic discolorations such as tetracycline staining, fluorosis, or grayish tooth discoloration; previous history of dental bleaching; presence of conditions associated with pre-existing sensitivity such as gingival recession, dentin exposure, or parafunctional habits such as bruxism; pregnancy or lactation; smoking habit; regular use of analgesic or anti-inflammatory medications.

Design outcomes

Primary

MeasureTime frame
To evaluate and compare the intensity of tooth sensitivity in patients with sound teeth and in patients with restored non-carious cervical lesions undergoing in-office bleaching with 35% hydrogen peroxide.

Secondary

MeasureTime frame
To evaluate the risk of tooth sensitivity in patients with sound teeth and in patients with restored non-carious cervical lesions undergoing in-office bleaching with 35% hydrogen peroxide.;To evaluate the objective and subjective whitening efficacy in patients with sound teeth and in patients with restored non-carious cervical lesions undergoing in-office bleaching with 35% hydrogen peroxide.

Countries

BR

Contacts

Public ContactMichael Favoreto

Universidade Tuiuti do Paraná

michaelfavoreto@hotmail.com+55(41) 3331-7700

Outcome results

None listed

Source: REBEC (via WHO ICTRP) · Data processed: Apr 4, 2026