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Water filters and lessons aim to protect Kids' teeth from too much fluoride

NCT ID NCT07359937

Prevention Sponsor: Universidad Antonio Nariño Source: ClinicalTrials.gov ↗

What the study statuses mean

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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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests a program for children in Colombia that combines water filters with educational sessions for parents and kids to reduce high fluoride exposure. About 90 children from kindergartens will take part, with half getting the full program and the other half receiving standard education. Researchers will measure fluoride levels in urine and water over a year to see if the approach works.

What this could mean

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

Active substance
reverse osmosis water filter and educational sessions
What this could lead to
If successful, this could provide a practical, community-based program to reduce children's fluoride exposure and prevent dental fluorosis.
What could go wrong
This is a small, early-stage trial with only 90 children in one region, so results may not apply broadly. The intervention relies on families sticking with the program, which can be challenging.

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 90 people

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

Started

Aug 2025

Expected to finish

Jun 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

2 to 5 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: * Kindergartens located in municipalities with exposure to fluoride concentrations in water. * Have a school feeding program. * The child must be enrolled. * They must be registered in the school feeding program. * The primary caregiver must be able to read. * The caregiver must agree to participate voluntarily and sign the informed consent form. * The caregiver must commit to attending all components of the intervention (education and collection of the child's urine sample). Exclusion Criteria: * Parents or children with conditions or situations that may interfere with the assimilation of the components of the strategy. * Children who wear diapers will be excluded from the study.

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Conditions

The condition(s) this trial relates to.

Fluoride Poisoning Health Education dental fluorosis prevention target

As listed by the trial registrant

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

Fluorosis Fluorosis, dental

How to take part

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

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    Open the record ↗

  3. A doctor treating you

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Contacts and locations

Locations

  • Centro de desarrollo infantil - Sonrisitas de oro

    Palermo, Colombia

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