I saw a dentist today, too.

I saw a dentist last Saturday and was treated. When I came back home, I noticed there was a very faint line on my front tooth. It seemed a crack on my tooth. I was very upset.

I saw the dentist today and told that. She checked my front tooth and scratched it. The line on my tooth vanished. The line was a fragment of plastic to fill the ground tooth. I was relieved!