The plates are separated by a tract of dentine on each side of the tooth.
The teeth are pointed and often have the dentine remarkably folded.
Finally, enamel itself and dentine are developed, and the embryonic tooth remains covered under the gums until it cuts them.
This models the enamel cap which fits over the dentine like a glove.
Teeth-enamel is formed from the epiblast, and dentine, cementum, pulp (except as to nerve tissue) from the mesoblast.
A papilla of the dermis makes its appearance, the outer layer of which gradually calcifies to form the dentine and osseous tissue.
Each ridge consists of a core of dentine surrounded by a coat of enamel.
The base is composed of bone: the spine of the somewhat modified bone known as dentine.
Their microscopic structure approaches to that of the dentine of such Carboniferous fishes as Diplodus.
The only advantage of yellowish teeth rests in the fact that their dentine is, as a rule, stronger.
dentin den·tin (děn'tĭn) or den·tine (-tēn')
The main, calcareous part of a tooth, beneath the enamel and surrounding the pulp chamber and root canals.