# Efficacy of Two Sonic Toothbrushes in Reducing Extrinsic Tooth Stain

> **NCT05202093** · NA · COMPLETED · sponsor: **Sun Yat-sen University** · enrollment: 129 (actual)

## Conditions studied

- Tooth Bleaching

## Interventions

- **DEVICE:** the Oclean Digital Visual toothbrush (2.16 N·cm torque)
- **DEVICE:** Oral B manual toothbrush
- **DEVICE:** the Oclean Sonic Electric toothbrush (1.96 N·cm torque)

## Key facts

- **NCT ID:** NCT05202093
- **Lead sponsor:** Sun Yat-sen University
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2022-03-05
- **Primary completion:** 2022-07-15
- **Final completion:** 2022-07-15
- **Target enrollment:** 129 (ACTUAL)
- **Last updated:** 2025-12-22


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05202093

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05202093, "Efficacy of Two Sonic Toothbrushes in Reducing Extrinsic Tooth Stain". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT05202093. Licensed CC0.

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