Can a Zirconia-Enriched filling outlast standard materials for Kids' cavities?

NCT ID NCT07788274

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 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 Results may not be published yet.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
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Status unknown
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First seen Aug 26, 2026 · Last updated Aug 28, 2026 · Updated 2 times

Summary

This trial tests two tooth-colored filling materials for cavities between the back baby teeth of children aged 4 to 7. One filling is a zirconia-fortified glass ionomer, and the other is a resin-modified glass ionomer. Dentists will place the fillings after removing decay and then check them at 3, 6, 12, and 18 months to see how well they hold up, including fit, wear, and whether new decay forms around the edges.

What this could mean

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

Active substance
Zirconia-fortified glass ionomer (Zirconomer-P) compared with resin-modified glass ionomer (FX-Ultra)
What this could lead to
If zirconia-fortified glass ionomer performs better or equal to the standard material, it could offer a more durable, tooth-colored option for filling cavities in children's baby teeth.
What could go wrong
This is a small, early-stage trial (50 children) comparing two materials, so results may not apply broadly. Fillings can fail over time, and the study will track outcomes for 18 months to see how each material holds up.

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 50 people

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

Expected to start

Sep 2026

An estimate. Start dates often move.

Expected to finish

Mar 2028

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

4 to 7 years

Sex

Anyone

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: * Generally cooperative children who can be managed by the operators. * Parent/legal guardian willing to sign the informed consent. * Acceptance of the required follow-up period. * Moderate to low caries risk according to the Cariogram application. * Posterior primary molar with a proximal carious lesion and no signs or symptoms of pulpal involvement. * Bitewing radiograph showing the lesion extending to the outer one-third of dentin. * Carious lesion classified as International Caries Detection and Assessment System (ICDAS) 3 or ICDAS 4. Exclusion Criteria: * Allergy to any restorative material. * Patients undergoing orthodontic treatment with fixed appliances. * Patients with debilitating systemic diseases. * Children with special needs. * Teeth with previous restorations. * Periapical radiolucencies. * Sensitivity to axial or lateral percussion. * Mobile teeth. * External or internal resorption.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

How to take part

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  1. The places running it

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

  2. The official record

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  3. A doctor treating you

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Contacts and locations

Locations

  • Faculty of Dentistry, Cairo University -Pediatric Dentistry Department Clinic

    Cairo, Egypt

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