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Effect of bleaching with activated carbon on enamel

Effectiveness, sensitivity and action on the enamel surface of activated carbon as bleaching agent: clinical and in situ study

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
REBEC
Registry ID
RBR-39jnyj
Enrollment
Unknown
Registered
2020-09-21
Start date
2019-04-01
Completion date
Unknown
Last updated
2025-10-27

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

Conditions

Dentin sensivity. Tooth abrasion

Interventions

Clinical trial: Forty patients (n=40) will be randomized into 04 groups: C group (control group) with 10 patients brushing using toothpaste without any bleaching treatment
CAR group (Activated carbon): Experimental group with 10 patients brushing with activated carbon 2 times/day associated with brushing with toothpaste
CARPH group (Activated carbon + Hydrogen peroxide): Experimental group with 10 patients using 35% hydrogen peroxide associated with brushing using activated carbon 2 times/day and toothpaste
and PH group (Hydrogen peroxide): Experimental group with 10 patients using only 35% hydrogen peroxide associated with brushing using toothpaste. For the in situ trial, each volunteer will receive 02
Procedure/surgery
E06.420.750

Sponsors

Universidade Federal do Rio Grande do Norte
Lead Sponsor
Universidade Federal do Rio Grande do Norte
Collaborator

Eligibility

Age
18 Years to 25 Years

Inclusion criteria

Inclusion criteria: Volunteers between 18 and 25 years old; both sexes; good oral and general health; vital teeth with color starting at A2; superior first molar with clinical crown greater than 5 mm, third molars extracted for orthodontic indication; vital

Exclusion criteria

Exclusion criteria: Have previous bleaching; smoker; tetracycline stains; fluorosis; hypoplasia; cracks; caries lesions; non carious lesions; periodontal disease; parafunctional habits; sensitivity; resin restorations in the anterior region; fixed or removable orthodontic appliance; third molars with morphological defects; cracks, fractures, caries lesions, non carious lesions and restorations

Design outcomes

Primary

MeasureTime frame
It is expected to note the effectiveness of activated carbon to remove extrinsic stains, analyzed by classic vita scale before, during and after the intervention period.—

Secondary

MeasureTime frame
Abrasion to tooth enamel, evaluated through Scaning Electron Microscope, Energy Dispersive Spectroscopy and Atomic Force Microscopy. Data analyzed before and after the 15 days of intervention.—

Countries

Brazil

Contacts

Public ContactIsauremi Assunção

Universidade Federal do Rio Grande do Norte

isauremi@gmail.com+55-084-3215-4100

Outcome results

None listed

Source: REBEC (via WHO ICTRP)