下颌个别牙先天缺失 congenitally missing teeth
下切牙先天缺失 congenital missing lower incisors
单纯性多数牙先天缺失 nonsyndromic oligodontia
第三臼齿先天缺失 congenital absence of third molar
先天性涎腺缺失 [口腔] congenital absence of salivary gland
多数牙先天性缺失 hypodontia
先天性肋骨缺失 congenital absence of rib
先天性软骨缺失症 congenital cartilage deficiency
All third molars has erupted before 30 except congenital missing, impaction and retarded eruption.
30岁前除先天缺失、阻生及萌出特别迟缓的第三磨牙外能够萌出的第三磨牙均已全部萌出。
参考来源 - 第三磨牙萌出年龄及缺失、阻生的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
除了智齿以外，其他牙齿的先天缺失率从1.6%到9.6%不等。
Except for wisdom tooth, the congenital deficiency rate is about 1.6%-9.6%.
目的对临床所见多个牙先天缺失患者进行病例分析和临床分类总结。
Objective to classify the clinical symptoms of congenital oligodontia and summarize the characteristics of the diseases.
摘要：目的对临床所见多个牙先天缺失患者进行病例分析和临床分类总结。
Abstract: Objective to classify the clinical symptoms of congenital oligodontia and summarize the characteristics of the diseases.
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