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Dental filling showdown: which material holds up best?

NCT ID NCT07576673

Disease control Sponsor: Cairo University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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 Results may not be published yet.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
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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jul 07, 2026 · Updated 3 times

Summary

This study compares two dental filling materials for cavities that form near the gum line (cervical lesions). One is a self-hardening composite, the other a flowable composite. Fifty adults will receive one of the two fillings and be checked over 18 months to see which stays in place and looks better. The goal is to find a more durable option for these common cavities.

What this could mean

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

Active substance
dental filling materials (self-cure composite and highly filled flowable composite)
What this could lead to
If one material works better, dentists may have a more reliable option for filling cavities near the gum line.
What could go wrong
This is a small, early-stage trial with only 50 people. Results may not apply to everyone, and both materials could perform similarly.

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

Apr 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

21 to 45 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.

Patient-related Criteria: A) Inclusion Criteria: * Patients consulting in the outpatient clinic with cervical carious lesion. * Age between 21-45 years. * Males and females. B) Exclusion Criteria: * Systemic disease or severe medical complication. * Allergy to any of the restorative materials. * Pregnancy. * Disabilities. * Heavy smoking; xerostomia. * Lack of compliance. * Evidence of severe bruxism, clenching, or temporomandibular joint disorders or bizarre habits. Tooth-related Criteria: A) Inclusion Criteria: * Small to moderate class V carious lesion. * Teeth are vital with no signs of irreversible pulpitis. * Caries cervical margins above the CEJ. * Well-formed and fully erupted in normal functional occlusion with natural antagonist. B) Exclusion Criteria: * Deciduous teeth; as the study is targeting only permanent teeth. * Deep carious defects (close to the pulp, less than 1 mm distance). * Tooth hypersensitivity. * Teeth with previous restorations, which may add another variable to the study (type of old restorative material, extent of recurrent caries). * Heavy occlusion and occlusal contacts or history of bruxism. * Endodontically treated teeth. * Periapical pathology or signs of pulpal pathology.

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Conditions

The condition(s) this trial relates to.

root caries

As listed by the trial registrant

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

Carious cervical lesions

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

  • Faculty of Dentistry, Cairo University

    Cairo, Egypt