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Dentists test new fillings that may last longer in big cavities

NCT ID NCT07320885

Disease control Sponsor: Mansoura 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
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tested two types of tooth-colored fillings for large cavities in back teeth. 120 adults received either a fiber-reinforced or a bulk-fill flowable resin composite as the inner layer. Researchers checked the fillings over 4 years to see which held up better against breaking or falling out. The goal is to help dentists choose more durable materials for deep cavities.

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

120 people

The number who actually took part.

Started

Jul 2020

Finished

Aug 2024

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 40 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: * having good oral hygiene. * having at least 3 posterior teeth with moderate to large primary proximal carious lesions (score 4 or 5 ICDAS). * ranging in age from 20 to 40 years. * with normal occlusion. * accepting to participate in the study by signing an Arabic-written consent according to the regulations of the Mansoura University Ethical Committee. Exclusion Criteria: * bad oral hygiene. * severe chronic periodontitis. * having installed orthodontic appliances. * abnormal occlusion. * parafunctional habits or allergic reaction to any of the materials used in the study. * teeth with irreversible pulpitis or non-vital teeth. * fractured or cracked teeth. previously restored teeth. * teeth with deep sub-gingival cavity margins.

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Conditions

The condition(s) this trial relates to.

dental caries dentin caries

As listed by the trial registrant

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

Caries class II Caries; dentin

Contacts and locations

Locations

  • Mansoura University

    Al Mansurah, Dakahlia Governorate, 35516, Egypt

More trials for these conditions

Other studies related to the condition(s) this trial covers.