[The occurrence of supernumerary canals in the palatal roots of upper 1st molars].
D003786:Dental Pulp Cavity / Q000002:abnormalities*; D006801:Humans; D008963:Molar / Q000002:abnormalities*; D014092:Tooth Root / Q000002:abnormalities*
Pojava prekobrojnih kanala u palatinalnom korijenu prvog gornjeg kutnjaka.