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A CBCT Study for Anatomic Variations of Osteomeatal complex in Patients With Cleft Lip and Palate
1Department of Dentomaxillofacial Radiology, Faculty of Dentistry, 566936Ankara Medipol University, Ankara, Turkey.
Objective:
To evaluate the anatomy and variations of osteomeatal complex (OMC) by comparing patients with nonsyndromic cleft lip and palate (CLP) and control group.
Design:
This case-control study was retrospectively analyzed using cone-beam computed tomography data.
Setting:
Istanbul University Faculty of Dentistry Department of Dentomaxillofacial Radiology.
Patients:
The study was conducted with 100 patients (44 females, 56 males) with CLP and 100 patients in the control group, which matched gender and age (with a maximum difference of 3 years).
Variables:
OMC variations are grouped as follows: ethmoidal, conchal, uncinate process, and septal variations. Then, we evaluated the presence of these OMC variations and compared them between the two groups.
Statistical Analysis:
The McNemar's test was used to determine any significant differences between the groups for all indices at the 95% confidence level.
Results:
The most common anatomic variation in this study was Agger nasi cell (97%) and concha bullosa (97%) in the patients with CLP, while Agger nasi cell was the most common variation (99%) in the controls. Moreover, the atelectatic uncinate process was the least observed variation in both groups (1%). The incidences of paradoxical concha (58%;42%), bifid concha (29%;11%), deviated nasal septum (92%;80%) were significantly higher in the CLP group (p < 0.05).
Conclusions:
The statistically significant results found when comparing OMC anatomy between the two groups reveal the importance of three-dimensional evaluation before functional endoscopic sinus surgery in patients with CLP.
