開かい咬こう

noun

open bite; apertognathia

Dental term for a malocclusion where the front teeth do not meet when the back teeth are closed.

• 開かい咬こうは、前まえ歯ばが噛かみ合あわない状じょう態たいを指さします。

  Open bite refers to a condition where the front teeth do not meet.