Should All Teeth Touch While Biting Down?

when biting down, what teeth should be touching ? because only my back molars touch ever since i had braces ... when before all my teeth use to touch except my canines and incisors . and my ortho keeps saying my bite perfect but i told him its uncomfortable . theyr traditional braces and i get them off Saturday but now i dont want to untill my bite is fixed but with another ortho .u cant tell when biting down that theyr not toching but all i feel is my molars.... sorry no pics .