Ortognatik Cerrahisi Yapılan İskeletsel Sınıf 3 Hastalarda Cerrahinin Hava Yolu ve Polisomnografik Verilere Etkisi
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Orthognathic surgery is an important option in the treatment of skeletal class 3 dentofacial deformity that creates aesthetic and functional problems. According the studies, patients with skeletal class 3 anomalies who underwent orthognathic surgery have higher risk of airway stenosis and sleep apnea risk than the healthy population. In this study, the effect of bimaxillary orthognathic surgery on narrowed airway and obstructive sleep apnea, changes in polysomnographic, and anatomical parameters were aimed to evaluate. The effect of the amount of mandibular set-back and maxillary advancement on airway volume and minimum axial area (MAA) at preoperative (T0) and postoperative (T1) was determined by cone-beam computed tomography; sleep parameters were evaluated together with polysomnography. The study included 26 patients who applied to Hacettepe University Faculty of Dentistry, Department of Oral and Maxillofacial Surgery for skeletal class 3 deformity and who had planning for maxillary advancement and mandibular set-back orthognathic surgery. According to results, oropharynx and nasopharynx volume size T1 measurements averages were significantly higher than T0 means (p<0.05). There was no significant difference between the mean values of MAA and sleep parameters (p>0.05). There was no significant difference between oropharyngeal size and sleep parameters at T0 and T1 times between sex groups (p> 0.05); nasopharynx volume increased significantly (p <0.05). There was a positive correlation between oropharynx volume and MAA change at 60% level (r: 0.600). There was a significant relationship between maxilla advancement amount and T1 nasopharynx volume measurement at 39.4% (p <0.05). No correlation was found between airway changes and polysomnographic parameters.