In the deciduous dentition, commonly known as the primary or baby teeth, the types of teeth present include incisors, canines, and molars. However, premolars are not present in the deciduous dentition.

- The deciduous dentition consists of a total of 20 teeth, which include:
- 4 incisors (2 central and 2 lateral incisors in each arch)
- 2 canines in each arch
- 4 molars in each arch (first and second molars)

- Premolars are part of the permanent dentition and serve as transitional teeth between canines and molars. When the permanent teeth erupt, the deciduous molars are replaced by the permanent premolars.

- Thus, the premolars are distinct from the types of primary teeth, as they only appear in the permanent dentition.

Understanding this distinction is crucial in pediatric dentistry and dental development studies.

Reference: Wheeler's Dental Anatomy, Physiology and Occlusion, 10th Edition, Chapter 6 / Page 112