歯に

to/on the teeth

→ 歯
phrase Rare #39,993
to/on the teeth 歯 means “teeth” or “tooth,” and に marks the target or location. The natural English translation depends on the surrounding expression, such as “on your teeth” or “bad for your teeth.”
JA: 歯に食べ物が挟まっている。
EN: Food is stuck between my teeth.

目に目を歯に歯を

An eye for an eye, a tooth for a tooth.

— 大人は判ってくれない (1959)

目に目を歯に歯を

An eye for an eye, a tooth for a tooth.

歯に何かついてる

You have something stuck in your teeth.

歯に悪い

Candy is bad for your teeth.