en پژوهشی اصيل Original Research <span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri,sans-serif"><b><span style="font-size:10.0pt"><span cambria="" style="font-family:"><span style="color:#44546a">Aims:</span></span></span></b> <span style="font-size:10.0pt"><span cambria="" style="font-family:">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<b> </b>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).</span></span></span></span></span><br> <span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri,sans-serif"><b><span style="font-size:10.0pt"><span cambria="" style="font-family:"><span style="color:#44546a">Instrument and Methods:</span></span></span></b> <span style="font-size:10.0pt"><span cambria="" style="font-family:">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.</span></span><b><span style="font-size:10.0pt"><span style="font-family:"Cambria",serif"></span></span></b></span></span></span><br> <span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri,sans-serif"><b><span style="font-size:10.0pt"><span cambria="" style="font-family:"><span style="color:#44546a">Findings:</span></span></span></b><b> </b><span style="font-size:10.0pt"><span cambria="" style="font-family:">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 </span></span><span lang="EN" style="font-size:10.0pt"><span cambria="" style="font-family:">differences </span></span><span style="font-size:10.0pt"><span cambria="" style="font-family:">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 </span></span><span lang="EN" style="font-size:10.0pt"><span cambria="" style="font-family:">the opposite side</span></span><span style="font-size:10.0pt"><span cambria="" style="font-family:">. </span></span><span lang="EN" style="font-size:10.0pt"><span cambria="" style="font-family:">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).</span></span><span style="font-size:10.0pt"><span style="font-family:"Cambria",serif"></span></span></span></span></span><br> <span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri,sans-serif"><b><span style="font-size:10.0pt"><span cambria="" style="font-family:"><span style="color:#44546a">Conclusion:</span></span></span></b><b> </b><span style="font-size:10.0pt"><span cambria="" style="font-family:">The patient&#39;s age, NSD, CB, impacted teeth, and missing teeth are unrelated to </span></span><span style="font-size:10.0pt"><span cambria="" style="font-family:">maxillary sinus volume</span></span><span style="font-size:10.0pt"><span cambria="" style="font-family:">. Males have higher mean sinus volume than females.</span></span></span></span></span> Maxillary sinus volume, Cone-beam computed tomography (CBCT), Nasal septal deviation, Concha bullosa, impacted teeth, Missing teeth 227 234 http://jccs.yums.ac.ir/browse.php?a_code=A-10-159-1&slc_lang=en&sid=1 S.A. Kazemi 10031947532846005795 10031947532846005795 No Ghaem Hospital, Bushehr University of Medical Sciences, Bushehr, Iran N. Roustaei 10031947532846005796 10031947532846005796 No “Department of Biostatistics and Epidemiology, School of Health” and “Social Determinants of Health Research Center”, Yasuj University of Medical Sciences, Yasuj, Iran S. Mirhadi sabamirhadi90@gmail.com 10031947532846005797 10031947532846005797 Yes Department of Oral and Maxillofacial Radiology, School of Dentistry, Yasuj University of Medical Sciences, Yasuj, Iran