Dentist：Hello, what’s wrong with your teeth?
小明：Hello doctor, I feel that I have a lot of plaque recently, and brushing my teeth doesn’t help to clean them. I wanted to ask if there is any method to improve this.
Dentist：Ok, sit down in the chair first, I will check it out. Open your mouth.

During the examination…
Dentist：There are indeed a lot of plaque, which is caused by improper brushing.
小明：Ok.
Dentist：First do the cleaning process to remove tartar.
小明：Is there any side effect?
Dentist：If you can’t wash your teeth, it will only help you clean them. In the future, pay attention to dental care and brush your teeth vertically instead of horizontally.