I went to a dentist.

【If you know any more natural phrases, please tell me!!】

Today, I went to see a dentist and I came back just now.

It was about 6th or 7th times so far.

Today's treatment was heavy. I fixed three teeth at once. There are some feeling of anesthesia left in my mouth even now.
At first, the dentist injected anesthesia around a bad tooth. And she got rid of a bad part by a drill or another device.
I couldn't know what was happened in my mouth. I could only hear the sound of treatment. I felt a little bit fear.

It costed an hour for today's treatment. And she said to me 'you have to come again to clean a root of your bad tooth'

What is a root of a tooth?

Whenever I go to see a dentist, I fell a kind of unfair.
Because a dentist know how much does it cost. But I couldn't know. If I ask there about it they would not tell me.

hmm,, I don't want to go to anymore....