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dentin

[ den-tn, -tin ]

noun

, Dentistry.
  1. the hard, calcareous tissue, similar to but denser than bone, that forms the major portion of a tooth, surrounds the pulp cavity, and is situated beneath the enamel and cementum.


dentin

/ dĕntĭn /

  1. The main bony part of a tooth beneath the enamel, surrounding the pulp chamber and root canals.


dentin

  1. The hard, bony material beneath the enamel of a tooth . The bulk of a tooth is made up of dentin.


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Other Words From

  • dentin·al adjective
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Word History and Origins

Origin of dentin1

First recorded in 1830–40; dent- + -in 2
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Example Sentences

One, called MEP1a, plays a role in forming dentin, the layer of tissue surrounding the tooth’s pulp.

Still, it can easily be renewed, or if all the tin is removed we find the dentin hard and firm.

Nature will not restore the lost part, but will do the next best thing—solidify the dentin.

In some cases, under tin, the pulp gradually recedes, and the pulp-cavity is obliterated by secondary dentin.

The effect is to cause the surface exposed to dentin to oxidize more than tin would do alone; in that there is a benefit.

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