Thesis Type: Doctorate
Institution Of The Thesis: Marmara University, Institute Of Health Sciences, Department Of Oral And Maxillofacial Radiology, Turkey
Approval Date: 2018
Thesis Language: Turkish
Student: DEVRİM BİRİKEN SİPAHİ
Supervisor: Şebnem Erçalık YalçınkayaAbstract:
It was aimed to evaluate the volume and septum of maxillary sinuses of skletal Angle Class I, II, III individuals and to investigate the associations among these groups. Material and Method: CBCT images (Planmeca Romexis®) of 90 dentate patients (47 female, 43 male/18-50 year-old) were collected from the archive of Marmara University Faculty of Dentistry. These patients had not received any orthodontic treatment and no cyst or tumor was detected in their maxillary sinuses. After cephalometric analyses(NEMOCEPH 11.5), patients were grouped skletally(Angle Class I, II, III) and vertically (low, normal and high). Volumes of maxillary sinuses were analyzed by 3D Doctor programme (Able Software Corp, USA). When it was present, septum was classified according to location(anterior/middle/posterior), orientation (buccopalatal/anteroposterior/horizontal) and formation (complete/incomplete). The data were evaluated statistically. Results: Male had higher maxillary sinus volume (34.32±10.94 cm³) than female (26.94±9.86 cm³), (p<0.001). When the data were evaluated according to age groups, skletal classification and vertical angle, no statistically significant differences were found. Right septum was more frequent in 18-30 age group (p<0.01). Complete septum was frequently seen in Angle Class II than in Class III (p<0.05). The majority of septa were seen in middle (41.8 %) and buccopalatal (93.5 %) orientation. Conclusion: Difference of volumes of maxillary sinuses of three skletal groups were found to be insignificant. Males showed higher volumes in all groups. The right complete maxillary sinus septum in Angle Class II may show the importance of pre-operative evaluation in these cases.