Example sentences

1. 虫歯はひとりでにぬけてしまった。

   The decayed tooth came out on its own.

2. 虫歯は１本もありません。

   I don't have any cavities.

3. 虫歯ができちゃって、冷たい物を食べるとしみるんだ。

   Since I developed this cavity, my tooth has been really sensitive to heat and cold.