Which filling lasts longer in kids' teeth? new study aims to find out.
NCT ID NCT07263555
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study will compare two dental filling materials—alkasite-based resin and nanohybrid composite resin—for treating cavities in the chewing surfaces of children's baby molars. About 50 children aged 4-6 will receive one of the two fillings and be checked at 3, 6, and 12 months to see which material prevents new decay and holds up better. The goal is to find the most durable and effective option for kids' dental care.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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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
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About 50 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Feb 2026
An estimate. Start dates often move.
- Expected to finish
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Feb 2027
An estimate. End dates often move.
- Lead sponsor
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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
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4 to 6 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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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 4-6 years of both sexes. * Cooperative children. * Apparently medically fit children according to parental history. * Children whose parents agree to sign the informed consent. * Children whose parents will be able to attend the follow-up. Teeth: * Primary molars with occlusal carious lesions (Class I), indicated for direct restorations. * Teeth without signs of pulpal involvement, abscess, or fractures. Exclusion Criteria: Children: * Children with systemic or mental disorders. * Children whose parents refused to sign the informed consent. * Noncompliant parent. * Uncooperative children. Teeth: * Teeth with deep caries involving the pulp or clinical signs of pulpal infection (e.g., swelling, sinus, fistula, pathological mobility). * Teeth with periapical pathology, internal or external root resorption, or mobility. * Non-restorable teeth or lacking sufficient structure for restoration
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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
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
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Cairo University
Cairo, Cairo Governorate, Egypt
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Other studies related to the condition(s) this trial covers.
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