What is predentin and which cell secretes it?

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Multiple Choice

What is predentin and which cell secretes it?

Explanation:
Predentin is the unmineralized organic matrix of dentin, produced by odontoblasts lining the pulp. Odontoblasts secrete predentin toward the future dentin, which is then mineralized as hydroxyapatite crystals are deposited, transforming predentin into dentin. The matrix mainly contains type I collagen and non-collagenous proteins that guide mineralization. Enamel matrix, on the other hand, is secreted by ameloblasts; dentin matrix becomes mineralized dentin, not unmineralized predentin; and cementoid is the organic matrix secreted by cementoblasts to form cementum.

Predentin is the unmineralized organic matrix of dentin, produced by odontoblasts lining the pulp. Odontoblasts secrete predentin toward the future dentin, which is then mineralized as hydroxyapatite crystals are deposited, transforming predentin into dentin. The matrix mainly contains type I collagen and non-collagenous proteins that guide mineralization.

Enamel matrix, on the other hand, is secreted by ameloblasts; dentin matrix becomes mineralized dentin, not unmineralized predentin; and cementoid is the organic matrix secreted by cementoblasts to form cementum.

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