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Q: What is the tooth enamel made of?
  • A. Calcium chloride
  • B. Calcium sulphate
  • C. Calcium carbonate
  • D. Calcium phosphate
Correct Answer: Option D - The tooth enamel is made of calcium phosphate. All teeth have three layers: enamel, dentine, and pulp. The enamel is the outermost layer and is primarily made of calcium phosphate minerals. Enamel is the hardest substance in the human body, but it does not grow back once it’s lost.
D. The tooth enamel is made of calcium phosphate. All teeth have three layers: enamel, dentine, and pulp. The enamel is the outermost layer and is primarily made of calcium phosphate minerals. Enamel is the hardest substance in the human body, but it does not grow back once it’s lost.

Explanations:

The tooth enamel is made of calcium phosphate. All teeth have three layers: enamel, dentine, and pulp. The enamel is the outermost layer and is primarily made of calcium phosphate minerals. Enamel is the hardest substance in the human body, but it does not grow back once it’s lost.