Enamel of teeth is secreted by-

Options

A. Ameloblast
B. Odontoblast
C. Osteoblast
D. Osteoclast

Answer

**Step-by-Step Solution:**

1. **Understanding Enamel Composition**: Enamel is primarily composed of calcium salts, specifically calcium carbonate and calcium phosphate. Approximately 95% of enamel is made up of these calcium salts.

2. **Function of Enamel**: The primary function of enamel is to protect the teeth from bacteria, acids, and physical wear during chewing. This protective layer is crucial for maintaining dental health.

3. **Identifying the Cells Involved**: The question specifically asks about the secretion of enamel. The cells responsible for this process are called **ameloblasts**.

4. **Role of Ameloblasts**: Ameloblasts are specialized cells that secrete enamel proteins. After these proteins are secreted, they undergo a process called mineralization, where minerals, particularly calcium, are deposited to form hard enamel.

5. **Evaluating Options**:
- **Option A: Ameloblast** - This is the correct answer as discussed.
- **Option B: Odontoblast** - Incorrect; odontoblasts are involved in the formation of dentin, not enamel.
- **Option C: Osteoblast** - Incorrect; osteoblasts are responsible for bone formation.
- **Option D: Osteoclast** - Incorrect; osteoclasts are involved in bone resorption.

6. **Conclusion**: Based on the information provided, the enamel of teeth is secreted by **ameloblasts**.

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