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Which cavity stopper works best for kids' molars?

NCT ID NCT07131358

Prevention Sponsor: Universidad Nacional Autonoma de Mexico Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 three cavity-prevention methods in 204 Mexican schoolchildren aged 6-8. One group gets fluoride varnish alone, another gets a glass ionomer sealant plus fluoride varnish, and the third gets a Giomer® sealant. All children also receive dental health education. Researchers will track new cavities over 24 months to find the most effective approach.

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 204 people

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

Started

Sep 2025

Expected to finish

Dec 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

6 to 8 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: * Schoolchildren between 6 and 8 years of age, of both sexes, with at least one erupted permanent first molar, healthy or with incipient caries (ICDAS codes 1 and 2), attending public primary schools in the State of Mexico located in the municipality of Nezahualcóyotl. * Schoolchildren with a moderate or high risk of tooth decay according to the caries risk assessment. Exclusion Criteria: * Schoolchildren with the presence of incisor-molar hypomineralization or dental fluorosis. * Schoolchildren with the presence of sealants of fissures and fissures or with a history of their placement in any of the first permanent molars. * School children who have a disability that prevents them from performing the oral clinical examination or interview. * Schoolchildren with allergies or suspected allergies to milk protein and its derivatives, methacrylate monomer and/or acetone.

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Conditions

The condition(s) this trial relates to.

van der Woude syndrome enamel caries prevention target

As listed by the trial registrant

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

Caries prevention

How to take part

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

  1. The places running it

    3 sites. The list below names each one and where it is.

  2. 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 ↗

  3. 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.

Contacts and locations

Locations

  • Primary School "Belisario Dominguez"

    RECRUITING

    Nezahualcóyotl, State of Mexico, 57809, Mexico

  • Primary School "Emiliano Zapata"

    RECRUITING

    Nezahualcóyotl, State of Mexico, 57820, Mexico

  • Primary School "Venustiano Carranza"

    RECRUITING

    Nezahualcóyotl, State of Mexico, 57820, Mexico