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Both the crown and root of a tooth is co...

Both the crown and root of a tooth is covered by a layer of bony hard substance called

A

Enamel

B

Dentine

C

Bony socket

D

Cementum

Text Solution

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The correct Answer is:
To answer the question "Both the crown and root of a tooth is covered by a layer of bony hard substance called," we need to analyze the options provided and understand the anatomy of a tooth. ### Step-by-Step Solution: 1. **Understanding the Anatomy of a Tooth**: - A tooth consists of two main parts: the crown and the root. The crown is the visible part above the gum line, while the root is embedded in the jawbone. 2. **Identifying the Options**: - The options given are: 1. Enamel 2. Dentin 3. Bony socket 4. Cementum 3. **Analyzing Each Option**: - **Option 1: Enamel**: - Enamel is the hard, outermost layer that covers the crown of the tooth. It is the hardest substance in the human body and protects the tooth from decay. - **Option 2: Dentin**: - Dentin is the layer beneath the enamel that makes up the bulk of the tooth. It is not the outer covering but rather provides support to the enamel. - **Option 3: Bony socket**: - The bony socket refers to the part of the jawbone that holds the root of the tooth. It is not a covering of the tooth itself. - **Option 4: Cementum**: - Cementum is a calcified layer that covers the root of the tooth, but it does not cover the crown. 4. **Conclusion**: - The only option that covers both the crown and the root of the tooth is **Enamel**. Therefore, the correct answer is **Option 1: Enamel**. ### Final Answer: Both the crown and root of a tooth is covered by a layer of bony hard substance called **Enamel**.
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