A study on the association between accessory maxillary ostium and maxillary sinus mucosal thickening using cone beam computed tomography

Abstract Background Accessory maxillary ostium (AMO) has a major role to play in the aetiology of sinusitis. Mucosal thickening is one key radiographic features chronic The aim this study was identify location AMOs and investigate association between Thickening [MT] AMO using Cone Beam Computed Tomography [CBCT]. Methods CBCT scans 400 sinuses from records 200 patients who seeked various dental treatments at Thumbay Dental Hospital, Gulf Medical University, Ajman, United Arab Emirates were evaluated. incidence, anatomical position maximal length accessory ostia antrum reviewed by two examiners. MTs also analysed. Results Among scans, 131 belonged male 69 female subjects within age group 18–65 years (mean 41.32 years). found 142 antra (35.5 %). inter-observer reliability for detect (k = 0.83). There no significant difference frequency when ( P 0.19) gender 0.54) distribution considered. Sinuses with AMOs, showed significantly greater p 0.001). less than 1mm most commonly observed (51.40 larger associated higher degrees MT. not affected degree Conclusions demonstrates clear MT occurrence sinus. However, independent probability finding an sinus if more 3 mm.