100th Congress of The European Orthodontic Society, Krakow, Polonya, 2 - 06 Haziran 2025, cilt.47, ss.76-77, (Özet Bildiri)
AIM: Functional occlusion and facial aesthetic is provided by orthognathic surgery in the treatment of severe skeletal deformities when growth is completed. İ t is necessary to establish an occlusion compatible with the TMJ for stable results in orthodontic and surgical treatments. The position of the condyle is important in terms of skeletal and occlusion stability in mandibular surgery. The aim of this study was to investigate the results of manual determination of condyle position during mandibular sagittal split ramus osteotomy (SSRO). The null hypothesis of the study was that manual assessment of condyle position is a subjective method.
MATERIAL AND METHODS: The material of the study was consisted of the lateral cephalometric films of 14 adult individuals who applied for treatment at the department of orthodontics, Ankara University. Mandibular SSRO surgery was applied after orthodontic treatment. Condyle position was manualy assessed during mandibular surgery. Condylar position was evaluated on lateral cephalo- metric radiographs before orthodontic treatment (T0), immidiately after surgery (T1), and after orthognathic surgery (T2). Data in the T0, T1, and T2 periods was analysed with the SPSS 20 package program.
RESULTS: Dramatic results were obtained in the skeletal structure and facial profile in the T2 period. Statistically significant changes were found in the condyle position measurements. It was determined that the condyle was normal in the T0 period and supero-posteriorly positioned in the T1 period.
CONCLUSION: In mandibular surgeries, determining the condyle position and correcting it if necessary is important for stability. The sensitivity of the method of manually assessing the condyle position during SSRO surgery is an issue that needs to be reviewed.