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Updated: Jun 12, 2025
Three-Dimensional Preoperative Virtual Planning in Derotational Proximal Femoral Osteotomy
Published on: February 17, 2023
Three dimensional assessment of root changes after multi-segments Le Fort I osteotomy
Khalid Ayidh Alqahtani1, Eman Shaheen2, Oliver Da Costa Senior2
1OMFS IMPATH Research Group, Department of Imaging & Pathology, Faculty of Medicine, KU Leuven and Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium; Department of Oral and Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia.
Abstract:
The primary purpose of this study was to accurately assess linear, volumetric and morphological changes of maxillary teeth roots following multi-segments Le Fort I osteotomy. A secondary objective was to assess whether patient- and/or treatment-related factors might influence root remodeling. A total of 60 patients (590 teeth) who underwent combined orthodontic and orthognathic surgery were studied retrospectively. The multi-segments group included 30 patients who had either 2-segments or 3-segments Le Fort I osteotomy. The other 30 patients underwent one-segment Le Fort I osteotomy. Preoperative, 1 year, and 2 years postoperative cone beam computed tomography (CBCT) scans were obtained. A validated and fully automated method for evaluating root changes in three dimensions (3D) was applied. No statistical significant differences were found between multi-segments and one-segment Le Fort I for linear, volumetric and morphological measurements. The Spearman correlation coefficient revealed a positive relationship between maxillary advancement and root remodeling, with more advancement leading to more root remodeling. This research may allow surgeons to properly assess root remodeling after combined treatment of orthodontics and the different Le Fort I osteotomies.
