Borders Maxillary teeth Maxillary Sinus
Right (n [%]) left (n [%]) Pooled (n [%])
Anterior border Canine 3 (7.9) 2 (5.3) 5 (6.6)
First premolar 17 (44.7) 20 (52.6) 37 (48.7)
Second premolar 16 (42.1) 12 (31.6) 28 (36.9)
First molar 2 (5.3) 4 (10.5) 6 (7.8)
Posterior border Second premolar 1 (2.6) 0 (0) 1 (1.3)
First molar 3 (7.9) 2 (5.3) 5 (6.6)
Second molar 30 (78.8) 34 (89.5) 64 (84.2)
Third molar 4 (10.5) 2 (5.3) 6 (7.9)