MICROANATOMY

Detailed explanation-1: -Each of the primary molars is replaced by permanent, premolar teeth. There are three permanent molars in each quadrant that are not succeeded by primary teeth and may be referred to as non-succedaneous teeth.

Detailed explanation-2: -Three permanent molars do not succeed primary teeth in each quadrant; therefore they are nonsuccedaneous teeth.

Detailed explanation-3: -The primary molars are replaced by permanent premolars (also called bicuspids) and the permanent molars come in behind the primary teeth. Most often, the first teeth to emerge are the lower two front teeth (incisors) and the upper and lower first molars, the molars closest to the front of the mouth.