Abstract
Aim
The aim of this study was to assess the correlation between the volume of maxillary sinus and various craniofacial patterns in a sample of Egyptian population with fully developed maxillary sinus using CBCT scans.
Methodology
39 craniofacial CBCT scans of healthy individuals who were 18 years or older with complete dentition were collected retrospectively as DICOM (Digital Imaging and Communication in Medicine) file format. Reformatted lateral cephalometric radiographs were obtained from the CBCT scans using PLANMECA ROMEXSIS software to assess the skeletal patterns (class I-II-III) of the individual through Cephalometric angular measurement (ANB). Volumetric measurement of both maxillary sinuses for each individual was conducted by MIMICS medical 21.0 software through semiautomatic segmentation via global thresholding.
Results
For all measurements; there were excellent intra and inter-observer agreement with statistical significance (ICC>0.9, p<0.001). Regardless of side, there were no significant associations between different sinus measurements and craniofacial classification. However, there was significant correlation between maxillary sinus volume and gender.



Conclusion
There is no significant correlation between maxillary sinus volume and craniofacial pattern in this sample of Egyptian population. Meanwhile, males showed greater maxillary sinus volume than females.