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OpenTrials
Completed

NCT Number: NCT06165458

Whitening Efficacy and Tooth Sensitivity of Different Concentrations of Hydrogen Peroxide Photoactivated With Violet or Blue LEDs

This is a randomized, controlled, double-blind and repeated-measures clinical trial evaluated the photoactivation of hydrogen peroxide gels in different concentrations with blue or violet LED in terms of whitening efficacy and tooth sensitivity.

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Key information

Conditions

Color Bleaching Sensitivity

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Federal University of Pará

Belém, Pará, 66075-110, Brazil

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • at age 18 or older, with good general and oral health;
  • possessing all six natural and healthy upper anterior teeth with a color shade of A2 or darker, determined by comparison with the Vita Classic scale;

Exclusion criteria

  • pregnant and breastfeeding women;
  • individuals with internal tooth discoloration (tetracycline stains, fluorosis or hypoplasias);
  • smokers, or those with veneers or restorations on the teeth in questions were excluded;
  • gingival recession;
  • dentin exposure;
  • periodontal disease.

Treatment and study plan

6% hydrogen peroxide gel + violet LED

Other

Tooth whitening with 6% hydrogen peroxide gel (Lase Peroxide Lite, DMC, São Carlos, Brazil) activated by violet LED

6% hydrogen peroxide gel + blue LED

Other

Tooth whitening with 6% hydrogen peroxide gel (Lase Peroxide Lite, DMC, São Carlos, Brazil) activated by blue LED

35% hydrogen peroxide gel + violet LED

Other

Tooth whitening with 35% hydrogen peroxide gel (Lase Peroxide Sensy, DMC, São Carlos, Brazil) activated by violet LED

35% hydrogen peroxide gel + blue LED

Other

Tooth whitening with 35% hydrogen peroxide gel (Lase Peroxide Sensy, DMC, São Carlos, Brazil) activated by blue LED

Primary outcomes

  1. Color

    Time frame: Color assessment was carried out before bleaching, 1 week after bleaching and 3 months after bleaching

    A operator measured the color of the six upper anterior teeth using a digital spectrophotometer (VITA Easyshade V, Wilcos, Petrópolis, RJ, Brazil).

  2. Bleaching Sensitivity

    Time frame: Assessments were carried out three times: before bleaching, immediately after bleaching, and 24 hours after bleaching.

    The degree of tooth sensitivity of patients was recorded using a visual analogue scale (VAS) from 0 to 10, where 0 represents no tooth sensitivity and 10 represents the greatest tooth sensitivity ever felt by the patient.

Sponsors and collaborators

Lead sponsor

Universidade Federal do Para

Other

Registry information

Official study title

Clinical Comparison of Whitening Efficacy and Tooth Sensitivity of Different Concentrations of Hydrogen Peroxide Photoactivated With Violet or Blue LEDs

Important dates

Study start
2021
Primary completion
2021
Study completion
2022
First posted
Dec 11, 2023
Registry last updated
Dec 15, 2023

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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