Efficacy study of toothbrushes

Clinical evaluation of a 16-branched filament toothbrush with a pressure-reducing mechanism - Clinical evaluation of a 16-branched filament toothbrush with a pressure-reducing mechanism

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000060597

Enrollment

Registered

2026-02-09

Start date

2026-02-09

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Interventions

Brush teeth for approximately 3 minutes using test toothbrush A. Brush teeth for approximately 3 minutes using test toothbrush B. Brush teeth for approximately 3 minutes using test toothbrush C.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Aged 20 years or older. Written informed consent was obtained from the participant after a full explanation using the informed consent document. Brushing pressure of 200 g or greater as measured by a toothbrushing pressure indicator (Komatsu Co., Ltd., Tokyo, Japan). Presence of 14 or more test teeth.

Exclusion criteria

Exclusion criteria: Use of dentures. Undergoing orthodontic treatment. Presence of significant malocclusion. Presence of severe dental caries. Scheduled dental clinic visits during the study period. Known allergy to dental plaque disclosing solution components. Individuals deemed ineligible by the study investigator or the study dentist.

Design outcomes

Primary

Measure	Time frame
Dental plaque removal rate	—

Secondary

Measure	Time frame
Brushing pressure	—

Countries

Japan

Contacts

Public ContactHiroko Ibaraki

Sunstar Foundation Department of Oral Health

hiroko.ibaraki@sunstar.com072-682-7298

Outcome results