Comparative Evaluation of Functional and Aesthetic Outcomes of Box and Mini-Wing Genioplasty Techniques
试验速览
- 阶段
- 不适用
- 状态
- 进行中（未招募）
- 发起方
- 入组人数
- 40
- 试验地点
- 1
- 主要终点
- Change in Upper Airway Area
研究概览
简要总结
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.
详细描述
Skeletal Class II dentofacial deformity is commonly treated with bimaxillary orthognathic surgery combined with genioplasty to improve facial harmony and functional outcomes. Among the available genioplasty techniques, Mini Wing and Box genioplasty differ in their osteotomy design and the direction of chin advancement, which may influence postoperative soft tissue profile and upper airway morphology.
This retrospective cohort study includes adult patients who underwent bimaxillary orthognathic surgery with either Mini Wing or Box genioplasty at Istanbul Medipol University between 2019 and 2025. Patients meeting the predefined inclusion and exclusion criteria will be identified through hospital records. Preoperative and postoperative cone-beam computed tomography (CBCT) images will be analyzed to evaluate changes in upper airway area, mentolabial angle, and submental angle.
Demographic characteristics and baseline measurements will be compared between groups to ensure similarity before surgery. Postoperative changes within each group and differences between the two surgical techniques will be statistically analyzed. The findings are expected to provide evidence regarding the effects of Mini Wing and Box genioplasty on upper airway dimensions and soft tissue profile, thereby supporting surgical planning and technique selection in patients with skeletal Class II deformity.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Retrospective
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •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.
排除标准
- •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.
结局指标
主要结局
Change in Upper Airway Area
时间窗: 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.
次要结局
- Change in Mentolabial Angle(Preoperative and 6 months after surgery)
- Change in Submental Angle(Preoperative and 6 months after surgery)
研究者
Merve Gaye Akgök
Research Assistant, Department of Oral and Maxillofacial Surgery
Istanbul Medipol University Hospital