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Dental filling showdown: which material lasts longer?

NCT ID NCT07575282

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study compares two types of dental fillings for cavities in the back teeth. Researchers will test a bulk-fill flowable resin against a submicron hybrid resin in 25 patients over 18 months. The goal is to see which filling performs better in terms of shape, comfort, and appearance.

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 (bulk-fill flowable resin and submicron hybrid resin)
What this could lead to
If successful, this could show which filling material works better and lasts longer for treating cavities in back teeth.
What could go wrong
This is a small, early-stage trial with only 25 participants, so results may not apply to everyone. The study hasn't started yet, and findings are limited to 18 months.

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 25 people

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

Expected to start

Aug 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

20 to 50 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: 1. Co-operative patients approving to participate in the trial 2. Simple class I carious lesion scored based on the International Caries Detection and Assessment System (ICDAS) is code 2 or 3 3. Vital upper or lower molar 4. Presence of favorable occlusion. 5. Presence of opposing teeth. 6. Proper teeth aligment. Exclusion Criteria: 1. Patients with poor oral hygiene 2. Bruxism or occlusion abnormalities. 3. Allergic reaction to the materials used. 4. Disabilities 5. Pregnancy 6. Heavy smoking 7. Xerostomia 8. Lack of Compliance 9. TMJ disorders 10. Unwillingness or inability to attend follow-ups. 11. Deep caries close to pulp. 12. Teeth with signs/symptoms of irreversible pulpitis or necrosis. 13. Endodontically treated teeth. 14. Extensive occlusal destruction 15. Periodontal affection

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Conditions

The condition(s) this trial relates to.

dental caries pit and fissure surface dental caries

As listed by the trial registrant

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

Caries class I

How to take part

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

  1. 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 ↗

  2. 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.