Which tooth type is absent in the primary dentition?

A Canines

B Molars

C Premolars

D Incisors

Solution

Correct Answer: Option C

- In the primary dentition, the types of teeth present include incisors, canines, and molars.
- However, premolars are absent in this stage.
- This is a crucial point to remember in dental anatomy and development.

The primary dentition, also known as baby teeth or deciduous teeth, consists of 20 teeth in total – 10 in the maxillary arch and 10 in the mandibular arch.
These teeth are categorized into:
- Incisors (central and lateral)
- Canines
- Molars (first and second molars)

Notably, premolars are not present in the primary dentition because they develop only in the permanent dentition. In the transition from primary to permanent dentition, premolars replace the primary molars.

Key points:
- Primary dentition = incisors, canines, and molars only
- No premolars in primary dentition
- Premolars appear only in permanent dentition, replacing primary molars

This understanding is essential for diagnosing, treatment planning, and understanding the eruption patterns of children's teeth.

Reference: Orban's Oral Histology, Volume 1, Chapter 4: Development and Eruption of Teeth, Page 56

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