Approximately what fraction of enamel's microhardness does dentin possess?

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Half the microhardness of enamelOne-seventh the microhardness of enamelOne-fourth the microhardness of enamelOne-fifth the microhardness of enamel

Explanation

Dentin's microhardness is roughly one-fourth that of enamel, making it significantly softer compared to enamel's hardness.

Approximately what fraction of enamel's microhardnes… — Oral Histology | PakQuizHub