Both the crown and root of tooth is covered by a layer of bony hard substance called A) Enamel B) Dentine C) Bony socket D) Cementum
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(B)dentine. Hope it will help you.
manashhazarika480:
m cnfuse some books says dentine and some enamel
See. Enamel is present only on the crown part. But dentine is present in the crown,neck as well as in root.
thnx
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Both the crown and root of the tooth is covered by a layer of a hard bony substance called (b) Dentine.
Dentine is the second hardest thing in the body after the enamel, and both are found in teeth.
Dentine is made up of a 70% mineral component and a 30% organic component.
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