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Validity of computed tomographic in assessment of genial tubercle and anterior mandible as a reference guide to locate osteotomy in genioglossus advancement

Authors: Hanan J. Kadem --- Ahlam A. Fatah
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2014 Volume: 26 Issue: 3 Pages: 63-65
Publisher: Baghdad University جامعة بغداد


Background: Genioglossus advancement is a surgical procedure to advance the tongue in some patients withobstructive sleep apnea syndrome.The important step in this procedure is that of accurately capturing the bonesegment attached to the genioglossus muscle to avoid complications such as mandibular fracture, devitalization ofthe inferior incisor roots, and incomplete incorporation of the genioglossusMaterials and Method: Computed tomography scans were taken for 53 Iraqi adult patients (28 male and 25 female)range from (18-35) years with skeletal class I classification and intact anterior mandible dentition included in this studyusing sagittal and axial sections. The measurements were done for genial tubercle and anterior mandibular region.Results: The mean values of some measurements weresignificantly higher in males than in females. The effect ofgender difference was evaluated as a strong effect. The mean value of the other measurements slightly higheramong males compared to females, but the difference fail to reach the level of statistical significance. The effect ofgender difference on this parameter was evaluated as a moderately strong effect.The results showed that there wasno effect of age on all selected measurements in male and female. All selected measurements showed nostatistically significant linear correlation with the age.Conclusions: The variable position and dimensions of this bone segment among patients suggest the need for CTbefore attempting genioglossus advancement for exact localization, avoiding the expected surgical complication

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