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Timing of jaw surgery may affect tooth roots and facial changes

NCT ID NCT06873451

Knowledge-focused Sponsor: Gokhan Coban 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looked at 24 adults with a specific jaw misalignment (Class III) who needed double-jaw surgery. Researchers compared two different surgical timings—surgery first versus surgery early—to see how they affected tooth root length and volume, as well as facial soft tissues. The goal was to understand which timing might lead to better outcomes for teeth and facial appearance.

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

Oct 2023

Finished

Aug 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: * They must be over 18 years of age, * Skeletal Class III malocclusion and need double jaw orthognathic surgery, * Minimum crowding (patients with crowding between 0-3 mm), * Complete 3D records before surgery and at the end of treatment, * No decay on their teeth, * Good oral hygiene, * Healthy periodontal tissues. Exclusion Criteria: * History of trauma, * Congenital anomalies or craniofacial deformities * Congenital tooth loss (excluding wisdom teeth)

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Conditions

The condition(s) this trial relates to.

autosomal dominant prognathism

As listed by the trial registrant

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

Orthodontics Orthognathic surgical procedures

Contacts and locations

Locations

  • Erciyes University Faculty of Dentistry Department of Orthodontics

    Kayseri, Melikgazi, 38000, Turkey (Türkiye)

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