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Dental sealant showdown: can a clear coat keep fillings Stain-Free?

NCT ID NCT07618013

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Updated 1 time

Summary

This study tests whether applying a thin, clear surface sealant over tooth-colored fillings helps prevent discoloration and improves how long the filling lasts. Twenty-five adults with cavities in their back teeth will receive either a sealant or standard polishing. Researchers will check the fillings over two years for color changes, stains, and overall condition.

What this could mean

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

Active substance
unfilled resin surface sealant (PermaSeal or OPTIGLAZE)
What this could lead to
If it works, this could make tooth-colored fillings last longer and stay looking better by reducing stains and discoloration.
What could go wrong
This is a small, early-stage trial with only 25 participants, so results may not apply to everyone. The sealant might not provide a noticeable benefit over standard polishing.

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

Jul 2026

An estimate. Start dates often move.

Expected to finish

Aug 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

18 to 55 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.

Participant Inclusion Criteria: * Adult patients aged 18-55 years. * Patients with good oral hygiene (mild to moderate plaque accumulation). * Patients with asymptomatic class V cavities in permanent teeth. Teeth inclusion criteria: * Vital posterior teeth with class V carious cavities. * Moderate cavities (ICDAS 3 \& 4). * Free from signs and symptoms of irreversible pulpitis and pulpal necrosis. * Teeth with no or grade 1 mobility. Participant Exclusion Criteria: * Patients who are unable to return for recall appointments. * Patients with poor oral hygiene. * Presence of abnormal oral, medical, or mental condition * Presence of any parafunctional habits. * Patients with TMJ problems. Teeth Exclusion Criteria: * Periodontal disease that may affect the prognosis of the restoration or the tooth itself. * Fractured or visibly cracked teeth. * Presence of any developmental or formative defects.

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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.

Color stability Marginal discoloration

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.

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