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

/ dĕn′tĭn /

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.

Other Words From

• dentin·al adjective

Word History and Origins

Origin of dentin¹

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

Example Sentences

He also argued that the dentin of Tyrannosaur teeth was more significant than the enamel.

From New York Times

At the heart of the dentin is the tooth’s soft pulp, where nerve cells and cells called odontoblasts, which manufacture dentin, are intertwined.

From New York Times

They counted fine lines in the dentin, the erstwhile living tissue of the teeth.

From New York Times

Its teeth, like ours, are made up of an outer layer of enamel and an inner layer of hard, dense, bony tissue called dentin.

From Reuters

The proteins came from collagen, a component of connective tissue in body parts including dentin, a part of teeth.

From Reuters