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Dentists test Gum-Friendly tooth repair technique

NCT ID NCT07661719

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jul 02, 2026 · Updated 2 times

Summary

This study looks at a dental technique called deep margin elevation (DME), where the edge of a filling is moved from below the gum line to above it. Researchers want to see if this helps keep gums healthier compared to leaving the edge below the gum. The study involves 45 adults with a treated back tooth that needs a crown or onlay. Each tooth will have one side treated with DME and the other side without, so the same tooth acts as its own comparison. The main goal is to check for gum bleeding, a sign of inflammation.

What this could mean

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

Active substance
Deep Margin Elevation (a dental procedure using composite resin to move the edge of a filling above the gum line)
What this could lead to
If successful, this study could show that deep margin elevation is a safe way to restore teeth without harming gums, helping dentists make better treatment decisions.
What could go wrong
This is a small, early-stage study with only 45 people. Results may not apply to everyone, and the long-term effects on gum health are still unknown.

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 45 people

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

Started

Mar 2026

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

18 to 65 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: * Patients aged between 18 and 65 years * Presence of at least one endodontically treated posterior tooth (premolar or molar) with extensive coronal structure loss * Teeth indicated for indirect CAD/CAM restoration * Presence of at least one proximal surface requiring deep margin elevation (subgingival margin) * Opposing proximal surface with supragingival or equigingival margin suitable as control * Good general health and ability to attend follow-up visits * Signed informed consent Exclusion Criteria: * Patients with poor oral hygiene or uncontrolled periodontal disease * Presence of active periodontal disease requiring treatment * Teeth with mobility greater than Grade I * Teeth with periapical pathology or unsuccessful endodontic treatment * Patients with systemic diseases affecting periodontal health (e.g., uncontrolled diabetes) * Pregnant or lactating women * Patients using medications affecting gingival tissues (e.g., immunosuppressants, calcium channel blockers) * Heavy smokers * Patients unable to comply with follow-up schedule

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Conditions

The condition(s) this trial relates to.

Tooth, Nonvital

As listed by the trial registrant

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

Endodontically treated teeth Periodontal health

Contacts and locations

Locations

  • Hacettepe University, Faculty of Dentistry, Department of Restorative Dentistry

    Ankara, Turkey (Türkiye)

More trials for these conditions

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