tooth core

例句：

1. 1.The dentist removed the tooth core and replaced it with a dental implant.
   牙医取出了牙齿核心并用牙科植入物替换。
2. 2.The patient was advised to maintain good oral hygiene to prevent tooth decay.
   患者被建议保持良好的口腔卫生以防止蛀牙。
3. 3. The research focused on the role of tooth core in caries prevention.
   该研究关注牙齿核心在预防龋齿中的作用。