The hard chewing surface of teeth that helps in the mastication of food is called.

Options

A. Enamel
B. Dentine
C. Canine
D. cementum

Answer

To solve the question regarding the hard chewing surface of teeth that aids in the mastication of food, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Question**: The question asks for the name of the hard chewing surface of teeth that assists in mastication (the process of chewing food).

2. **Consider the Options**: The options provided are:
- A. Enamel
- B. Dentine
- C. Canine
- D. Cementum

3. **Understand the Functions of Each Option**:
- **Enamel**: This is the outermost layer of the tooth and is known for its hardness. It protects the tooth and is crucial for chewing.
- **Dentine**: This is the layer beneath the enamel and is less hard than enamel. It supports the enamel but is not the primary chewing surface.
- **Canine**: This refers to a type of tooth (specifically, pointed teeth used for tearing food) rather than a surface.
- **Cementum**: This is a bone-like substance that covers the roots of teeth, anchoring them to the jawbone, but it is not involved in chewing.

4. **Analyze the Correct Answer**: Given that enamel is the hardest substance in the human body and covers the crown of the tooth, it is the primary surface that comes into contact with food during mastication.

5. **Conclude the Answer**: The hard chewing surface of teeth that helps in the mastication of food is called **A. Enamel**.

### Final Answer:
The hard chewing surface of teeth that helps in the mastication of food is called **A. Enamel**.

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