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Which filling fights cavity bacteria best in Kids' teeth?

NCT ID NCT07776912

Disease control Sponsor: Galal Ali Mohamed Ebaid 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 20, 2026 · Last updated Aug 21, 2026 · Updated 1 time

Summary

This trial tests three different tooth-filling materials—Cention-N, Zirconomer, and resin-modified glass ionomer—in children aged 4 to 9 who have cavities in their baby molars. The goal is to see how well each filling holds up over time and how it affects bacteria levels and acidity in the mouth. The study will help determine which material might be a better choice for restoring young children's teeth.

What this could mean

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

Active substance
Three dental filling materials: Cention-N, Zirconomer, and resin-modified glass ionomer
What this could lead to
If one material performs better, it could point to a more durable, bacteria-resistant option for filling cavities in children's baby teeth.
What could go wrong
This is a small, early-stage trial, so results may not apply to all children. Fillings can fail over time, and the materials may not show clear differences.

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 45 people

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

Started

Aug 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

4 to 9 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: * Children aged between 4-9 years. * Children who have Class I lesions in both the maxillary and mandibular arches. * Primary molar teeth had class I carious lesions in occlusal pits and fissures; the gap between intercuspal surfaces should not be exceeded during cavity preparation. * Primary molars free of periapical pathosis. * Primary molars free root resorption. Exclusion Criteria: * Primary molars with preapical pathosis or hypersensitivity. * Primary molars with periodontal diseases or mobile molar tooth that indicated for extraction. * Nonfunctioning teeth with no opposing dentition; heavy occlusion or signs of severe attrition; and endodontically treated teeth.

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Conditions

The condition(s) this trial relates to.

dental caries

As listed by the trial registrant

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

Cention-N Class I restoration Primary molars Resin-modified glass ionomer Salivary PH Streptococcus mutans count Zirconomer

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

    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

  • Al-Azhar University (Faculty of Dentistry)

    RECRUITING

    Cairo, 11651, Egypt

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