Abstract:
in 2016-06-07, two 13-year-old twin sisters attended to dental department of Lixian county hospital and presented with sparse arrangement of anterior upper teeth. Their medical and dental histories were unremarkable. In each case, teeth of 13 and 23 sites were missing, while teeth 12 and 22 appeared in a conical shape. Upper anterior teeth aligned sparsely. Oral photographs and panoramic radiographs were undertaken. Diagnosis were congenitally missing maxillary canines. Suggestion of doctors were Porcelain crown restoration until adulthooh.
Key words:
twins,
congenital,
canine missing
摘要： 报道2例双胞胎姐妹，均双侧先天上颌尖牙缺如，侧切牙锥形畸形萌生。探讨先天缺牙患者的形成原因，为先天缺牙的病因学诊断提供病例依据，进一步佐证了先天缺牙的形成与基因变化有关。
关键词:
双胞胎,
先天,
尖牙缺如
CLC Number:
ZHANG Zhan-Bo, WANG Fei, LI Hong-Yu, GAO Li-Hua, BIAN Ya-Kun, LI Rong-Rong. Congenital Missing of Maxillary Canines: a Report in Twin Sisters[J]. 《Journal of Oral and Maxillofacial Surgery》, 2017, 27(3): 227-228.
张占波, 王飞, 李红宇, 高丽花, 边亚坤, 李荣荣. 双胞胎姐妹先天上颌尖牙完全缺如病例报道[J]. 《口腔颌面外科杂志》, 2017, 27(3): 227-228.