tooth thickness

例句：

1. 1. The dentist advised me to have my teeth cleaned regularly.
   牙医建议我定期洗牙。
2. 2. She had a toothache and needed to see a dentist for treatment.
   她牙痛需要去看牙医治疗。
3. 3. The patient's tooth was too thick, making it difficult to clean.
   患者的牙齿太厚了，难以清洁。