tooth tony2099 included in life 2020-03-29 13 words One minute Contents 牙齿主要疾病: 蛀牙; 牙周病 structure: 根管治疗: 杀死神经 why: 血管已经被感染 how: 打开牙髓腔 注入药物杀死神经 填充 牙套保护 Please enable JavaScript to view the comments powered by utterances.