DictionarydentinHard tooth tissue
noun

dentin

DEN-tin/dˈɛntʌn/

Hard tissue beneath a tooth's enamel.

A broad layer of yellowish dentin lies between the enamel and the tooth's pulp.

Tooth cross section with white enamel, broad pale-yellow dentin layer and central red pulp accurately distinct.
Etymology

The Latin word for “tooth” combines with a substance-forming suffix to name a material of the tooth: specifically, the hard tissue beneath enamel and surrounding the pulp.

In context

The Inspire Health Podcast33:20
the tooth under the white enamel is a hard tissue called dentin
Ep 142: Cell Voltage & The Root To All Disease With Dr. Jerry Tennant

More examples

  • Exposed dentin can make a tooth sensitive to cold.
  • The dentist removes decayed dentin before placing the filling.
  • Enamel is harder than the dentin beneath it.

Forms

dentin

dentinal adjective — Relating to or consisting of dentin.

Similar words

ivory
Usually denotes dentin from animal tusks, especially as a material.