oligodontia

n.[医]少牙(畸形)

少齿症（一种先天性的牙齿发育异常，指个体缺少正常数量的牙齿）

名词

1. Oligodontia is a rare condition where a person is born with only a few teeth or no teeth at all.

少齿症是一种罕见的病症，患者出生时只有几颗牙齿或者没有牙齿。

2. People with oligodontia often require dental prosthetics or implants to replace the missing teeth.

患有少齿症的人通常需要使用牙科义齿或种植物来替代缺失的牙齿。