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Charcoal toothbrush showdown: can it beat regular brushes for cleaner teeth?

NCT ID NCT07563413

Disease control Sponsor: Cairo University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether charcoal-infused toothbrushes remove plaque and stains better than regular nylon toothbrushes. Thirty-six Egyptian adults brushed twice daily for 4 weeks with standard toothpaste. Plaque and stain levels were measured at the start and end. The goal is to see if the charcoal brush offers any real advantage for everyday oral hygiene.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
charcoal-infused toothbrush
What this could lead to
If it works, this could show that charcoal toothbrushes are a better option for daily plaque and stain control.
What could go wrong
This is a small, short-term study (36 people, 4 weeks) with no blinding, so results may not apply widely or last long-term.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

36 people

The number who actually took part.

Started

Jan 2026

Finished

Feb 2026

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

21 to 50 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Subjects who will be given a consent to participate in the study, between 21 to 50 years old, with an original plaque score recorded above 2, and presence of at least twenty long lasting natural teeth (excluding wisdom tooth, teeth with orthodontic appliances) were included in the study. Exclusion Criteria: * Subjects with any physical constraints that might prevent normal oral hygiene procedures, history of sensitivity to toothpaste, use of interdental aids (interdental floss, mouth rinses, etc), pregnant or breastfeeding females, subjects under medication such as anti inflammatory, antiepileptic and antihypertensive, medically compromised patients (systemic diseases such as cardiovascular disease, diabetes, etc), evidences of gingival or periodontal diseases or trauma at baseline, any lesion of hard and soft tissue, were excluded from the study.

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Conditions

The condition(s) this trial relates to.

anthrax infection Dental Plaque

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Dental plaque

Contacts and locations

Locations

  • Faculty of Dentistry Cairo University

    Cairo, Egypt

More trials for these conditions

Other studies related to the condition(s) this trial covers.