also: ぜんし
noun
front tooth; incisor
Refers to the front teeth, especially the incisors. The reading まえば is everyday; ぜんし is technical.
See also: 奥歯
転んで前歯を折ってしまった。
I fell and broke my front tooth.
彼は前歯でりんごをかじった。
He bit into the apple with his front teeth.
奥歯 refers to the back teeth (molars), while 前歯 refers to the front teeth (incisors).
Compound of 前 (mae, 'front') and 歯 (ha, 'tooth'), with rendaku voicing of は to ば.