The Relationship Between Accessory Maxillary Ostium and Sinonasal Region Variations

Abstract

Purposes: The aim of this study is to evaluate the prevalence of accessory maxillary ostium (AMO) and its association with age, gender, sinus variation, pathological formations, status of dentition and tooth endodontic and periodontal status using cone-beam computed tomography (CBCT).Methods : The study examined archived CBCT images of 390 patients at least 18 years old (232 females and 158 males) representing 790 regions of interest. The mean age of the female patients was 46.35 and that of the males was 48.62. All the CBCT images analyzed with sagittal, coronal and axial sections. The data were assessed using IBM SPSS 22. Significance was evaluated at the p <0.05 level. Results: The study observed that while the prevalence of primary maxillary ostium (PMO) on the right side was 94.9% and on the left side was 94.6% (for a total of 94.7%), the prevalence of accessory ostium on the right side was 33.1% and on the left was 35.4% (34.2% in total).Conclusions: There was no significant difference in AMO prevalence related to age, presence of mucosal thickness, mucus retention cysts, maxillary sinusitis, sinonasal variation, status of dentition or periodontal status of posterior maxilla. However there was a relationship between AMO and both gender and endodontic status.