Comparative Evaluation of Functional and Aesthetic Outcomes of Box and Mini-Wing Genioplasty Techniques

NCT07724743 · tracked via the Priya Life Science Turkey tracker

Sponsor

Istanbul Medipol University Hospital

Phase

Observational

Started

2019-03-01

Last updated

2026-07-24

Condition(s) studied

Class II MalocclusionDentofacial DeformitiesRetrognathia

Investigational drug(s) / intervention(s)

Mini Wing GenioplastyBox Genioplasty

Mini Wing Genioplasty: Mini Wing genioplasty performed in conjunction with bimaxillary orthognathic surgery for correction of skeletal Class II dentofacial deformity.

Box Genioplasty: Box genioplasty performed in conjunction with bimaxillary orthognathic surgery for correction of skeletal Class II dentofacial deformity.

Study summary

This retrospective cohort study aims to compare the effects of Mini Wing and Box genioplasty performed in conjunction with bimaxillary orthognathic surgery on upper airway area and soft tissue profile in adult patients with skeletal Class II dentofacial deformity. Preoperative and postoperative radiographic measurements will be evaluated to determine changes in upper airway area, mentolabial angle, and submental angle. The study also aims to assess whether either genioplasty technique provides superior postoperative functional and esthetic outcomes.

Eligibility

Sex

ALL

Min age

18 Years

Max age

—

Healthy volunteers

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.

Primary outcome measure(s)

Change in Upper Airway Area — Preoperative and 6 months after surgery
Change in upper airway area measured on cone-beam computed tomography (CBCT) images obtained before surgery and 6 months after surgery.

Trial sites (1)

Facility	City	Region	Status
Istanbul Medipol University Hospital	Bağcılar	Istanbul

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Official registry record

This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.

View NCT07724743 on ClinicalTrials.gov ↗ ← All trials in Turkey