Prevalence and Correlation of Concha Bullosa and Nasal Septal Deviation with Maxillary Sinus Mucosal Thickening Using Cone-Beam Computed Tomography

This study aimed to assess the prevalence and correlation of Concha Bullosa (CB) and Nasal Septal Deviation (NSD) with maxillary sinus Mucosal Thickening (MT) using Cone-Beam Computed Tomography (CBCT). This descriptive, cross-sectional study was conducted on CBCT scans of 228 females and 157 males (mean age of 44.82±15.10 years) retrieved from the archives of the Radiology Department of Shahid Beheshti Dental School. The images were evaluated by one oral and maxillofacial radiologist for presence/absence of NSD, CB, and maxillary sinus MT, and their correlations. Statistical analyses were performed by independent t-test, Chi-square test, and binomial test (alpha=0.05). The prevalence of CB, NSD, and MT was 61.6, 80, and 70.6%, respectively. NSD (p=0.131) and CB (p=0.211) had no significant correlation with MT. However, CB and NSD were significantly correlated (p=0.006). NSD had a significant correlation with contralateral presence of CB as well (p=0.000). The prevalence of CB was significantly higher in females (p<0.05), while the prevalence of NSD and MT was significantly higher in males (p<0.05). The present study revealed no significant correlation between CB and NSD with maxillary sinus MT. Thus, in absence of clinical symptoms, patients with CB or NSD should not be necessarily referred for treatment of sinus abnormalities. However, considering the significant correlation of CB and NSD, in case of presence of one entity, the other one should be suspected.