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New study tests better way to fix sinus hole after tooth pull

NCT ID NCT07476664

Disease control Sponsor: Medical University of Silesia 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 ways to close an abnormal opening between the mouth and the sinus that can happen after pulling an upper back tooth. 24 adults were treated either with a special collagen membrane or a standard surgical flap. The goal was to see which method better preserves the gum tissue for future dental implants or dentures.

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

24 people

The number who actually took part.

Started

May 2021

Finished

Dec 2025

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 years and older

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: * Adults aged 18 years or older * Acute oroantral communication diagnosed within 24 hours after extraction of a maxillary posterior tooth * General health status permitting outpatient dental surgery * Indication for single-tooth extraction in the posterior maxilla * Systemic conditions not contraindicating minor oral surgery * Ability and willingness to attend scheduled follow-up visits * Provision of written informed consent Exclusion Criteria: * Oroantral communication present for more than 24 hours * Chronic inflammatory disease of the maxillary sinus * History of head and neck neoplastic disease or its treatment * Pregnancy * Systemic diseases preventing outpatient surgical treatment * Blood disorders or coagulation abnormalities * Ongoing anticoagulant therapy * Immunosuppressive therapy * Age under 18 years * History of multiple previous surgical procedures in the study area

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Conditions

The condition(s) this trial relates to.

Oroantral Fistula

As listed by the trial registrant

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

Acute oroantral communication Oroantral communication Oroantral fistula Post-extraction maxillary sinus communication

Contacts and locations

Locations

  • University Dental Clinic of the Silesian Medical University in Katowice

    Bytom, Poland

More trials for these conditions

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