Well, you can go to a regular dental clinic to have your teeth cleaned. Sometimes the teeth will be much whiter after washing.

I washed it several times. I remember washing my teeth for the first time in my life, so I washed them twice, with a week between. When I washed it again, the dentist polished it for me with some tools. Remember to look in the mirror after washing, and feel that the whitest thing on your body is your teeth. I think it is very useful to wash your teeth.

Normal people usually wash their teeth once a year to half a year, which is very healthy, not chemical, but natural.

Recommend it to you.