From: Incidence of maxillary sinus septa in the saudi population
Bilaterally symmetrical septa | Bilaterally non-symmetrical septa | ||
---|---|---|---|
Single septum in each sinus | 40 | Single septum in one sinus only | 86 |
2 septa in each sinus | 1 | 2 septa in one sinus only | 4 |
 |  | Multiple septa in both sinuses | 8 |
Total | Â | 139 | Â |