ANATOMY

Detailed explanation-1: -There are three permanent molars in each quadrant that are not succeeded by primary teeth and may be referred to as non-succedaneous teeth. The arrival of these teeth, 12 in total, gives permanent dentition 32 teeth compared to the 20 teeth of primary dentition.

Detailed explanation-2: -Permanent molars are not considered succedaneous teeth because when they come in, they don’t replace past teeth.

Detailed explanation-3: -Non-succedaneous teeth do NOT replace primary teeth because they erupt distally to the primary teeth. All of the secondary molars are examples of non-succedaneous teeth. When do primary teeth crowns form?

Detailed explanation-4: -The permanent incisors, canines, and premolars are called succedaneous teeth because they replace (succeed) the primary teeth.

Detailed explanation-5: -Three permanent molars do not succeed primary teeth in each quadrant; therefore they are nonsuccedaneous teeth.