Influence of Polishing After Bleaching on Color Change and Enamel Morphology

Not Applicable

Completed

• Conditions: Tooth Discoloration; Morphologic Change; Tooth Sensitivity
• Interventions: Other: Hydrogen Peroxide 35%; Other: Hydrogen Peroxide 35% + Polishing whitened teeth

• Registration Number: NCT05635253
• Lead Sponsor: Universidade Federal do Para

Brief Summary

This trial evaluated the influence of polishing on enamel color change after in-office bleaching treatment. It also evaluated the influence of polishing on tooth morphology and sensitivity.

Detailed Description

Not available

Study Timeline

• Study Start: 2022-01-10
• Primary Completion: 2022-08-26
• Study Completion: 2022-09-12
• Status Verified: 2022-11
• Study First Submitted: 2022-11-13
• Study First Submitted QC: 2022-11-29
• Last Update Submitted: 2022-11-29
• Study First Posted: 2022-12-02
• Last Update Posted: 2022-12-02

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 50

Inclusion Criteria

• Individuals aged 18 to 30 years old of both sexes;
• With good oral hygiene;
• With no sensitivity to tactile and evaporative stimuli;
• Who have not undergone previous bleaching treatment, and with no caries lesions.

Exclusion Criteria

• patients undergoing fixed orthodontic treatment;
• patients allergic to the bleaching product;
• drug users or pregnant women;
• patients with carious lesions, defective restorations and/or periodontal disease, patients with systemic diseases, pulpitis or patients using analgesics.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: FACTORIAL

Arm && Interventions

Group	Intervention	Description
GROUP GSEM	Hydrogen Peroxide 35%	In-office whitening treatment with 35% Hydrogen Peroxide
GROUP GP	Hydrogen Peroxide 35% + Polishing whitened teeth	In-office whitening treatment with 35% Hydrogen Peroxide + Polishing of whitened teeth

Primary Outcome Measures

Name	Time	Method
Influence of polishing on color after tooth whitening	14 days	Color evaluation was performed with the EasyshadeAdvanced spectrophotometer (Vita-Zahnfabrik, GE, Germany)

Secondary Outcome Measures

Name	Time	Method
Surface morphology of whitening enamel with and without polishing	14 days	The images were obtained using a electron microscope (Mira3 model) with type electron gun, mounted on supports of aluminum with 12mm of diameter, using tape double adhesive carbon face, and metallic with Au for 2'30'' which deposits about the sample a film thick average of 10 to 15nm. The images were generated by detecting secondary electrons, using a voltage acceleration of 5 kV and a working distance of around 15 mm.
Influence of polishing on sensitivity after tooth whitening	14 days	assessment of sensitivity during treatment using a visual analogue scale with values from 0 to 10, with higher values indicating a worse level of pain.

Trial Locations

Locations (1)

Cecy Martins Silva; 🇧🇷 Belém, PA, Brazil