| 释义 |
den·tin
\ˈdentən, -tə̇n\ noun
or den·tine \ˈden.ˌtēn, ̷ ̷ˈ ̷ ̷\
(-s)
Etymology: dent- + -in, -ine
: a calcareous material similar to bone but harder and denser that composes the principal mass of a tooth, is formed by the odontoblasts of the surface of the dental papilla, and consists of a matrix containing minute parallel tubules which open into the pulp cavity and during life contain processes of the cells of the pulp — compare cementum, enamel; see tooth illustration |