From: Intrusion of maxillary molar roots into the maxillary sinus in a sample of the Egyptian population using cone beam computed tomography
Gender
Sinus
Total
P value
Inside
Outside
Female
81 (42.9%)
108 (57.1%)
189 (100%)
0.01
Male
87 (56.9%)
66 (43.1)
153 (100%)
168 (49.1%)
174 (50.9%)
342 (100%)