[Number of canals in the distal root of the lower 1st molars].
D003786:Dental Pulp Cavity / Q000033:anatomy & histology*; D006801:Humans; D008963:Molar / Q000033:anatomy & histology*; D014092:Tooth Root / Q000033:anatomy & histology
Número de canais na raiz distal dos primeiros molares inferiores.