During primary dentinogenesis, which mechanism most accurately distinguishes the initial formation of mantle dentine from the subsequent formation of

Question

During primary dentinogenesis, which mechanism most accurately distinguishes the initial formation of mantle dentine from the subsequent formation of circumpulpal intertubular dentine?

Accepted Answer

Mantle dentine mineralisation is initiated in association with matrix vesicles, whereas circumpulpal intertubular dentine forms through mineralisation of a collagen–proteoglycan matrix

Answer

Matrix-vesicle-associated mineralisation occurs in radicular mantle dentine only and is absent during coronal mantle dentine formation

Answer

Mantle dentine is produced by ameloblasts, whereas circumpulpal intertubular dentine is produced by odontoblasts

Answer

Mantle dentine initially contains no collagen, whereas circumpulpal intertubular dentine contains predominantly type III collagen

Answer

Circumpulpal dentine mineralisation is initiated in association with matrix vesicles, whereas mantle dentine forms through mineralisation of a collagen–proteoglycan matrix

Mantle Dentine — MFDS Part 1 MCQ

During primary dentinogenesis, which mechanism most accurately distinguishes the initial formation of mantle dentine from the subsequent formation of circumpulpal intertubular dentine?