Table 5. The type of tracheobronchial foreign bodies.

Aspirated material	N (%)
Tooth	52 (37.7)
Chicken bone	21 (15.2)
Nuts, seeds, bean and cone	20 (14.5)
Fish bone	13 (9.4)
Food particle	12 (8.7)
Unknown	7 (5.1)
Pills	5 (3.6)
Tracheostomy tube	2 (1.4)
Etc.	6 (4.3)

*Etc. includes a cotton swab, a Go stone, a nail, a nut, a drawing pin and a piece of rubber