《英文msh词典》Discolorations,Tooth
[入口词] Discolorations,Tooth
[主题词] Tooth Discoloration
[英文释义] Any change in the hue,color,or translucency of a tooth due to any cause. Restorative filling materials,drugs (both topical and systemic),pulpal necrosis,or hemorrhage may be responsible. (Jablonski,Dictionary of Dentistry,1992,p253)