- 1. 門牙；前齒 He broke his incisor during the car accident. 他在車禍中撞斷了門牙。
1.with the mandibular central incisor being approximately one-half the mesiodistal width of the maxillary central incisor．下顎...the mandibular lateral incisor is slightly larger than the mandibualar central incisor, a situation which is just the reverse of that for the maxillary incisors...
...輸入英文（牙菌斑：plaque），它會發音給你聽．．． 另，補充幾個英文： 門牙incisors 側門牙lateral incisor 大臼齒molars 小臼齒...
i am a 8 years old boy at second grade with short, brown hair and bright skin. i am a taiwanese with roly-poly face and big incisor, who am i?