Dentin (Noun)
Meaning 1
Bone (calcified tissue) surrounding the pulp cavity of a tooth.
Classification
Nouns denoting body parts.
Synonyms
Hypernyms
Meaning 2
A calcareous material harder and denser than bone that comprises the bulk of a tooth.
Classification
Nouns denoting substances.
Examples
- The dentin is covered by enamel on the crown of the tooth and by cementum on the root.
- Exposure of dentin can cause sensitivity in the tooth, as the nerves inside the tooth can detect hot or cold temperatures.
- Dentin is made up of tiny tubes called dentinal tubules that run through the tooth from the pulp to the surface.
- When a tooth is damaged, the dentin is often exposed, allowing bacteria to penetrate the tooth and cause decay.
- The dentist carefully drilled through the enamel to access the dentin and remove the decay that was spreading through the tooth.