例句與造句

1. a18 year old male patient, mesial lesion in relation to 26 . mesial and distal amalgam restorations with marginal deterioration . discoloured palatal groove
   18歲男性患者，26號牙齒的牙冠中面出現(xiàn)缺損，中面及遠中面的汞合金修復(fù)出現(xiàn)邊緣惡化現(xiàn)象。上顎溝變色。
2. It's difficult to find amalgam restoration in a sentence. 用amalgam restoration造句挺難的