N/A
N=129
Efficacy of Two Sonic Toothbrushes in Reducing Extrinsic Tooth Stain
Tooth Bleaching
Bottom Line
View on ClinicalTrials.gov: NCT05202093 ↗Enrolled (actual)
129
Serious AEs
0.0%
Results posted
Dec 2025
Primary outcome: Primary: Lobene Stain Index of Stain Intensity Scores 4 Weeks After Toothbrush Use — 0.89; 0.88; 1.13 score on a scale
Study Design & Population
- Study type
- Interventional
- Phase
- N/A
- Interventions
- 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) (Device)
- Age
- Adult, Older Adult · 18+ yrs
- Sex
- All
- Sponsor
- Sun Yat-sen University
- Primary completion
- Jul 2022
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Lobene Stain Index of Stain Intensity Scores 4 Weeks After Toothbrush Use |
0.89; 0.88; 1.13 | — |
| PRIMARY Lobene Stain Index of Stain Area Scores 4 Weeks After Toothbrush Use |
0.81; 0.81; 1.02 | — |
| PRIMARY Lobene Stain Index of Stain Composite Scores 4 Weeks After Toothbrush Use |
1.54; 1.5; 2.05 | — |
| PRIMARY Lobene Stain Index of Stain Intensity Scores 8 Weeks After Toothbrush Use |
0.78; 0.71; 1.01 | — |
| PRIMARY Lobene Stain Index of Stain Area Scores 8 Weeks After Toothbrush Use |
0.75; 0.74; 0.94 | — |
| PRIMARY Lobene Stain Index of Stain Composite Scores 8 Weeks After Toothbrush Use |
1.37; 1.27; 1.88 | — |
Summary
The objective of the present study was to compare the effects of reduction of extrinsic stains between 2 commercially available Oclean sonic toothbrushes in comparison with an Oral-B manual toothbrush.
Eligibility Criteria
The inclusion criteria were: 1) aged 18-70 years; 2) good general health; 3) ability to attend all scheduled visits over the 8-week study period; 4) possession of more than 20 natural permanent teeth, excluding third molars, which are free of crowns or extensive restorative materials; 5) at least 12 anterior teeth suitable for scoring (i.e., free of crowns, veneers, large restorations, trauma, or non-vital pulp); 6) a whole-mouth mean Lobene stain composite score greater than 1.
Exclusion criteria included: 1) severe oral or systemic diseases; 2) advanced periodontal diseases; 3) pregnancy or lactation; 4) dental fluorosis or tetracycline staining; 5) orthodontic appliances or partial removable dentures; 6) participation in other clinical trials; 7) professional prophylaxis within 3 months or tooth whitening within 6 months; and 8) known allergy to study products.
Data sourced from ClinicalTrials.gov (NCT05202093). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.