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Chin surgery showdown: can a Mini-Wing reshape both face and airway?

NCT ID NCT07724743

Symptom relief Sponsor: Istanbul Medipol University Hospital Source: ClinicalTrials.gov ↗

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 24, 2026 · Last updated Jul 24, 2026

Summary

This study compares two types of chin surgery—Box genioplasty and Mini-Wing genioplasty—in adults with a receding lower jaw (skeletal Class II deformity) who are also having jaw realignment surgery. The goal is to see which technique better improves the upper airway size and the soft-tissue profile of the chin and neck. By measuring changes on CT scans taken before and six months after surgery, researchers hope to determine whether one method offers superior functional and cosmetic results.

What this could mean

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

Active substance
Mini Wing genioplasty or Box genioplasty (surgical procedures on the chin bone)
What this could lead to
If one technique proves superior, it could guide surgeons toward a standard approach that improves both breathing and facial profile for patients with jaw deformities.
What could go wrong
This is a small retrospective study, so results may not apply to all patients. Surgery carries risks like infection, nerve damage, and swelling.

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.

Participants

40 people

The number who actually took part.

Started

Mar 2019

Expected to finish

Jul 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.

Who is studied

Adult patients with skeletal Class II dentofacial deformity who underwent bimaxillary orthognathic surgery combined with Mini Wing or Box genioplasty at Istanbul Medipol University between 2019 and 2025.

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. * Diagnosis of skeletal Class II dentofacial deformity. * Underwent bimaxillary orthognathic surgery combined with either Mini Wing or Box genioplasty. * Available preoperative and postoperative CBCT images obtained 6 months after surgery. * Complete clinical and radiographic records. Exclusion Criteria: * Previous orthognathic or genioplasty surgery. * Craniofacial syndromes or congenital craniofacial anomalies. * History of facial trauma affecting craniofacial morphology. * Incomplete clinical records or missing CBCT data. * Poor-quality CBCT images unsuitable for analysis.

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Conditions

The condition(s) this trial relates to.

Dentofacial Deformities isolated Pierre-Robin syndrome Overbite Retrognathia

As listed by the trial registrant

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

Class II malocclusion Dentofacial deformities Retrognathia

Contacts and locations

Locations

  • Istanbul Medipol University Hospital

    Bağcılar, Istanbul, 34214, Turkey (Türkiye)

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