dentin
🇺🇸
/ˈdentiːn/
🇬🇧
/ˈdentiːn/
noun
R
The layer of a tooth that is beneath the outer enamel and contains the pulp.
The dentist explained that the cavity had reached the dentine, which is why the tooth was sensitive to hot and cold.
牙醫解釋說，蛀牙已經達到牙本質，這就是為什麼牙齒對冷热敏感的原因。
translation
牙本質