Primary dentition shows absence of the following teeth

Options

A. Canines
B. Pre-molars
C. Molars
D. Incisors

Answer

To answer the question regarding the absence of certain teeth in primary dentition, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Primary Dentition**:
- Primary dentition refers to the first set of teeth that develop in humans, also known as deciduous teeth or baby teeth.

2. **Identifying the Types of Teeth**:
- In primary dentition, there are a total of 20 teeth. The types of teeth present include:
- 2 Central Incisors
- 1 Lateral Incisor
- 1 Canine
- 2 Molars
- This is represented in a dental formula as 2-1-2-0 for each quadrant (upper and lower jaws).

3. **Comparing with Permanent Dentition**:
- In contrast, permanent dentition consists of 32 teeth, which include:
- 2 Central Incisors
- 1 Lateral Incisor
- 1 Canine
- 2 Premolars
- 3 Molars
- The dental formula for permanent teeth is 2-1-2-3 for each quadrant.

4. **Identifying the Absence**:
- By comparing the two sets of dentition, we can see that the primary dentition does not include premolars.
- Therefore, the primary dentition shows the absence of premolars.

5. **Conclusion**:
- The correct answer to the question is that the primary dentition shows the absence of premolars.

### Final Answer:
- The primary dentition shows the absence of **premolars**.

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