例句 /

It is not uncommon to see an impacted or unerupted maxillary incisor in the children's dental clinic.

It is not uncommon to see an impacted or unerupted maxillary incisor in the children's dental clinic.

摘要上颚门牙异位萌出或上颚阻生牙是儿童牙科及齿颚矫正门诊常见的问题。