Sailor Moon

Sailor Moon is a manga-turned-television series produced by Toei Animation, Inc. The series had a whole episode about visiting the dentist and Chibiusa's cavities. The episode tells you that visiting the dentist makes your teeth better and brushing your teeth helps them keep clean.

Dr. Sal Longo, DDS' Description:
Usagi and Chibiusa have cavities in their teeth and they need to go to the dentist very quickly