absence of tooth

• 牙齿缺失

absence of tooth的用法和样例：

例句

1. Congenital missing of one or both of the maxillary incisors is the second most common form of tooth agenesis.
   摘要上颚侧门齿先天缺失是仅次于第三大臼齿最常见的牙齿缺失。
2. Tooth loss accompanied by alveolar bone resorption presents a significant clinical problem.
   牙齿缺失伴有牙槽骨吸收的病例是典型的临床问题。