A gel that may save the tooth next door: wisdom tooth extraction gets a preventive upgrade

NCT ID NCT07718932

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 22, 2026 · Last updated Jul 23, 2026 · Updated 1 time

Summary

This trial tests whether applying a regenerative gel called Emdogain to the root of the second molar during wisdom tooth removal can prevent the deep pockets and bone loss that often develop on that tooth afterward. The study involves 70 healthy adults who need a lower wisdom tooth removed. Half will receive the gel during surgery; the other half will heal naturally. Researchers will measure changes in gum attachment and bone levels over six months to see if the gel leads to better healing.

What this could mean

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

Active substance
a regenerative gel made from enamel matrix proteins (Emdogain)
What this could lead to
If it works, this could offer a simple, one-time preventive step during wisdom tooth extraction to protect the adjacent molar from gum disease and bone loss.
What could go wrong
This is a small, early-stage trial with 70 participants. The gel may not improve healing over natural recovery, and its effects beyond 6 months are 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 70 people

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

Started

Mar 2026

Expected to finish

Oct 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 35 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: * Healthy adult patients aged 18 to 35 years old (ASA I or II). * Presence of an asymptomatic, partially or fully impacted mandibular third molar requiring surgical extraction. * The third molar impaction must be mesioangular or horizontal, with its crown in direct physical contact with the adjacent second molar, as assessed by a preoperative panoramic radiograph. * The adjacent mandibular second molar must be vital, fully erupted, and structurally sound (free of extensive dental caries or prosthetic crowns). * Patients must demonstrate an adequate level of overall oral hygiene and gingival health (e.g., Full-Mouth Plaque Index \< 20% and Full-Mouth Bleeding Score \< 20% following initial prophylaxis and oral hygiene instructions). * Willingness to comply with postoperative instructions and adhere to the scheduled follow-up visits. * Ability to understand the study procedures and voluntarily sign the informed consent form. Exclusion Criteria * Presence of systemic diseases or conditions that could compromise wound healing or periodontal health (e.g., uncontrolled diabetes mellitus, autoimmune disorders). * Current or recent use of medications known to affect bone metabolism or wound healing (e.g., bisphosphonates, long-term systemic corticosteroids, immunosuppressants). * History of heavy smoking (e.g., \>10 cigarettes per day) or use of smokeless tobacco products. * Pregnant or lactating females. * Diagnosis of periodontitis (Stage II, III, or IV) affecting the remaining dentition, excluding the localized defect associated with the impacted third molar. * Presence of active acute infection (e.g., purulent pericoronitis) or radiolucent pathologic lesions extending beyond the normal follicular space (e.g., dentigerous cysts) that would significantly alter the baseline bony defect morphology. * Known allergy or hypersensitivity to any of the medications utilized in the surgical or postoperative protocol (e.g., local anesthetics, prescribed antibiotics, or analgesics). * Previous orthodontic treatment utilizing bands on the mandibular second molars that could have affected the periodontal attachment.

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Conditions

The condition(s) this trial relates to.

Alveolar Bone Loss periodontal disorder Periodontal Pocket

As listed by the trial registrant

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

How to take part

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

  1. The places running it

    2 sites. The list below names each one and where it is.

  2. 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 ↗

  3. 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.

Contacts and locations

Locations

  • 424 General Military Hospital

    RECRUITING

    Thessaloniki, Greece

  • Aristotle University of Thessaloniki

    RECRUITING

    Thessaloniki, Greece

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