Write down dental formula of a child.

Explanation

**Step-by-Step Solution:**

1. **Understanding Dental Formula**: The dental formula is a way to represent the number and types of teeth in an organism. It is usually expressed as a fraction, where the numerator represents the upper jaw (maxilla) and the denominator represents the lower jaw (mandible).

2. **Types of Teeth**: In mammals, there are four types of teeth: incisors, canines, premolars, and molars. Each type has a specific function:
- **Incisors**: Used for cutting food.
- **Canines**: Used for tearing food.
- **Premolars**: Used for crushing and grinding food.
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