What is the hardest substance in the human body?

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A Bone
B Tooth enamel
C Dentin
D Cementum

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Answer: B. Tooth enamel

Tooth enamel is the single hardest and most mineralized substance in the human body, while other hard mineralized tissues like bone, dentin, and cementum round out the top structural substances.

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What is the hardest substance in the human body?

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