Onye na-ekpo ọkụ ọkpọkọ bụ ngwá ọrụ na-echekwa ike nke na-ekpo ọkụ ọkụ. Ọ na-arụnyere n'ihu kpo oku-ajụ ngwá kpọmkwem okpomọkụ na-ajụ, nke mere na ọ nwere ike igbasa kpo oku na elu okpomọkụ, na n'ikpeazụ nweta nzube nke ịzọpụta ike. A na-ejikarị ya eme ihe na tupu ikpo ọkụ mmanụ mmanụ dị ka mmanụ dị arọ, asphalt, na mmanụ doro anya.