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Dental adhesive showdown: which glue best repairs worn teeth?

NCT ID NCT04481087

Knowledge-focused Sponsor: Hacettepe 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 five different ways of using dental adhesives to repair worn teeth near the gum line (called non-carious cervical lesions). Thirty-four adults each received multiple fillings using different adhesive methods. The fillings were then checked after two years for how well they stayed in place, any staining, and other signs of wear. The goal is to find out which adhesive technique works best for this common dental problem.

What this could mean

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

Active substance
dental adhesive (Clearfil Universal Bond Quick, Clearfil SE Bond, Tetric N-Bond)
What this could lead to
If successful, this study could help dentists select the most effective adhesive for repairing worn teeth, leading to longer-lasting fillings.
What could go wrong
This is a small, early-stage study with only 34 participants. Results may not apply to all patients, and the study only looks at short-term outcomes.

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

34 people

The number who actually took part.

Started

Feb 2018

Expected to finish

Jun 2026

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 65 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * being 18 years or older, * having no medical or behavioral problems preventing then from attending review visits, * having at least 5 tooth with NCCLs * having antagonist teeth Exclusion Criteria: * poor gingival health, * uncontrolled, rampant caries, * bruxism, * removable partial dentures, * xerostomia

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Conditions

The condition(s) this trial relates to.

tooth erosion, non-bacterial Tooth Wear

As listed by the trial registrant

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

Tooth wear

Contacts and locations

Locations

  • Hacettepe University

    Ankara, Turkey (Türkiye)

More trials for these conditions

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