# In-office Bleaching Using a Violet Light

> **NCT03207204** · NA · COMPLETED · sponsor: **University of Sao Paulo** · enrollment: 200 (actual)

## Conditions studied

- Tooth Bleaching
- Dentin Sensitivity

## Interventions

- **PROCEDURE:** 35% Hydrogen peroxide bleaching
- **PROCEDURE:** 30% Carbamide peroxide bleaching
- **PROCEDURE:** Violet LED bleaching 1
- **PROCEDURE:** Violet LED bleaching 2
- **PROCEDURE:** Photochemical protocol 1
- **PROCEDURE:** Photochemical protocol 2
- **PROCEDURE:** Hybrid technique 1
- **PROCEDURE:** Hybrid technique 2

## Key facts

- **NCT ID:** NCT03207204
- **Lead sponsor:** University of Sao Paulo
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2017-07-02
- **Primary completion:** 2017-12-02
- **Final completion:** 2020-07-02
- **Target enrollment:** 200 (ACTUAL)
- **Last updated:** 2020-11-04


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03207204

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03207204, "In-office Bleaching Using a Violet Light". Retrieved via AI Analytics 2026-05-31 from https://api.ai-analytics.org/clinical/NCT03207204. Licensed CC0.

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