Within each dentinal tubule is a space of variable size containing dentinal fluid, an odontoblastic process, and possibly an afferent axon ( see next discussion ).
2.
Thus with the formation of primary dentin, the cell moves pulpally, away from the basement membrane ( future dentinoenamel junction ) at the interface between the inner enamel epithelium and dental papilla, leaving behind the odontoblastic process within the pulp.
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