comparative evaluation of maxillary sinus volume at nasal septal deviation, concha bullosa and impacted or missing teeth levels in cone-beam computed tomography

Aims: the maxillary sinuses are the largest paranasal sinuses adjacent to the teeth. various mechanisms play an important role in the growth of maxillary sinus cavities. this study aimed to compare maxillary sinus volume (msv) with nasal septal deviation (nsd), concha bullosa (cb) impacted teeth, and missing teeth using cone-beam computed tomography (cbct).instrument and methods: this retrospective study was conducted on cbct images of 186 patients referring to a radiography center in yasuj, iran, in 2022-23. data including age, gender, nsd, and cb, impacted teeth, and missing teeth (premolar and canine) were examined. msv was measured in the coronary section using the 3d nnt viewer software.findings: there was no significant difference between the volume of the right and left maxillary sinuses (p=0.352). males had a significantly higher mean msv than females (p<0.001). there were no significant correlations between msv and age (r=-0.064; p=0.492). no significant differences were found between msv in sides of nsd (p=0.433), cb (p=0.933), impacted teeth (p=0.815), missing teeth (p=0.497), and the opposite side. there was no statistically significant difference between msv in mild and moderate nsd on the side of the deviation and the opposite side; only in severe nasal septum deviation was significantly higher than the opposite side (p<0.001).conclusion: the patient’s age, nsd, cb, impacted teeth, and missing teeth are unrelated to maxillary sinus volume. males have higher mean sinus volume than females.