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Could a simple WhatsApp nudge cut childhood tooth decay?

NCT ID NCT07765654

Prevention Sponsor: King Abdulaziz 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 This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 14, 2026 · Last updated Aug 19, 2026 · Updated 2 times

Summary

This trial tests whether sending oral health tips via WhatsApp to mothers, in addition to standard face-to-face advice, improves their knowledge and their children's toothbrushing habits. Mothers of children aged 3 to 6 will receive either usual education alone or with 16 additional WhatsApp messages over eight weeks. The goal is to see if the extra digital reminders lead to better brushing practices and help prevent tooth decay in young children.

What this could mean

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

Active substance
WhatsApp-based oral health messages as an adjunct to face-to-face education
What this could lead to
If effective, this low-cost digital approach could help prevent tooth decay in young children by improving mothers' knowledge and children's brushing habits.
What could go wrong
The trial is small and short-term, and results may not generalize beyond this setting. Success depends on mothers' engagement with the messages.

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

About 106 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Aug 2026

An estimate. Start dates often move.

Expected to finish

Aug 2027

An estimate. End dates often move.

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

18 years and older

Sex

Female participants only

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: * Mother of at least one child aged 3 to 6 years * Aged 18 years or older * Able to read and understand Arabic * Owns a smartphone with an active WhatsApp account * Attending the Pediatric Dentistry Clinics at King Abdulaziz University Hospital at the time of recruitment * Willing to participate and provide informed consent Exclusion Criteria: * Dental professional or dental student * Currently participating in another oral health education program targeting child oral health or toothbrushing practices

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Conditions

The condition(s) this trial relates to.

dental caries Health Behavior

As listed by the trial registrant

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

Dental caries Early childhood caries (ECC) Early childhood cariesv Health behavior Oral health Oral hygiene

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  2. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

More trials for these conditions

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