thickness of tooth

例句：

1. 1. The dentist advised me to brush my teeth twice a day for better dental health.
   牙医建议我每天刷牙两次以保持更好的口腔健康。
2. 2.The patient's tooth was so thick that it required an extraction.
   患者的牙齿太厚了，需要拔除。
3. 3. The researcher found that the thickness of the tooth had a significant impact on its strength.
   研究者发现牙齿的厚度对其强度有显著影响。