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Question 1

Dentin Composition

Answer 1

70% Inorganic hydroxy apatite crystals20% collagen10% water

Question 2

Types of Dentin

Answer 2

Primary Dentin- while tooth is erupting and formingSecondary dentin- after eruption and root is almost complete

Question 3

Mantle Dentin

Answer 3

First primary dentin formedMantle bc serves as covering