Also see definition of "Tooth" in Word Study
Tooth
Tooth [ebd]
(1.) One of the particulars regarding which retaliatory punishment was to be inflicted Ex 21:24 Le 24:20 De 19:21 (2.) "Gnashing of teeth" =rage, despair Mt 8:12 Ac 7:54 (3.) "cleanness of teeth" =famine Am 4:6 (4.) "children's teeth set on edge" =children suffering for the sins of their fathers Eze 18:2
Also see definition of "Tooth" in Word Study