Investigation on the relationship of dimensions of the maxillary sinus drainage system with the presence of sinusopathies: a cone beam computed tomography study

•Values of the height ostium and length of the infundibulum was linked to gender.•Height ostium was associated with normal content in the maxillary sinus.•Length of the infundibulum was linked with total opacification and antral pseudocyst. This study sought to assess the relationship between the dimensions of the maxillary sinus drainage system with the content of sinuses. Three-hundred cone beam computed tomography images were selected from a database (105 males and 195 females). The images were assessed by a single investigator, trained and calibrated, performing image analysis. The length of the infundibulum and the ostium height in both maxillary sinuses were measured. The data were analyzed using Minitab 16, using 5% as a critical p-value. A significant gender difference was also found for presence in the normal content of sinus for females and presence of antral pseudocyst for males (p