Influence of Polishing After Bleaching on Color Change and Enamel Morphology

NCT05635253 | Completed

• 1 other identifier: UFPara-0014
• Study Type: interventional
• Target: 50
• Locations: 1 country
• Sites: 1

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.

Conditions

Tooth Discoloration; Morphologic Change; Tooth Sensitivity

Outcome Measures

Primary Outcomes (1)

• Influence of polishing on color after tooth whitening

  Color evaluation was performed with the EasyshadeAdvanced spectrophotometer (Vita-Zahnfabrik, GE, Germany)

  14 days

Secondary Outcomes (2)

• Surface morphology of whitening enamel with and without polishing

  14 days

• Influence of polishing on sensitivity after tooth whitening

  14 days

Study Arms (2)

GROUP GSEM

OTHER

In-office whitening treatment with 35% Hydrogen Peroxide

Other: Hydrogen Peroxide 35%

GROUP GP

EXPERIMENTAL

In-office whitening treatment with 35% Hydrogen Peroxide + Polishing of whitened teeth

Other: Hydrogen Peroxide 35% + Polishing whitened teeth

Interventions

Hydrogen Peroxide 35% OTHER

Group that received only bleaching treatment. Soft tissue protection was performed with a Top Dam light-curing gingival barrier (FGM, Santa Catarina, SC, Brazil). Application of whitening gel (Whitness HP 35%/FGM) on the buccal surface from premolar to premolar in the upper and lower arches. Three 45-minute sessions were held with an interval of seven days between them.

GROUP GSEM

Hydrogen Peroxide 35% + Polishing whitened teeth OTHER

Group that received only bleaching treatment followed by polishing. Soft tissue protection was performed with a Top Dam light-curing gingival barrier (FGM, Santa Catarina, SC, Brazil). Application of whitening gel (Whitness HP 35%/FGM) on the buccal surface from premolar to premolar in the upper and lower arches. Three 45-minute sessions were held with an interval of seven days between them. After bleaching, the vestibular surfaces were polished for 20s on each bleached tooth, with polishing paste and felt disc (Diamond Flex, FGM, Santa Catarina, SC, Brazil) in low rotation.

GROUP GP

Eligibility Criteria

• Age: 18 Years - 30 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• 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.

You may not qualify if:

• 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.

Sponsors & Collaborators

• Universidade Federal do Para: lead

Study Sites (1)

Cecy Martins Silva

Belém, Pará, 66075-110, Brazil

Location

MeSH Terms

Conditions

Tooth Discoloration; Dentin Sensitivity

Interventions

Hydrogen Peroxide

Condition Hierarchy (Ancestors)

Tooth Diseases; Stomatognathic Diseases

Intervention Hierarchy (Ancestors)

Peroxides; Oxides; Anions; Ions; Electrolytes; Inorganic Chemicals; Reactive Oxygen Species; Free Radicals; Oxygen Compounds; Organic Chemicals

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: PARTICIPANT, OUTCOMES ASSESSOR
• Purpose: PREVENTION
• Intervention Model: FACTORIAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Clinical professor

Study Record Dates

• First Submitted: November 13, 2022
• First Posted: December 2, 2022
• Study Start: January 10, 2022
• Primary Completion: August 26, 2022
• Study Completion: September 12, 2022
• Last Updated: December 2, 2022

Record last verified: 2022-11

Locations

BR (1)