Twice a day.
I'm no expert, but i would think that, unless you don't care about your teeth, teenagers should brush their teeth the same way everyone else should.
You should brush your dogs teeth about once a week. You should also give hime dental bones, you can find them at PetSmart, to chew on. At least every month
every day!
It's important to brush your teeth after every meal so there is no plaque buildup.
Yes
every time they eat go to sleep and wake up
you should brush your teeth 2 a day morning and night for 2 minutes
Batman is in a cartoon. I don't watch the series, but I think that he does. You know, Batman or Batmen, should brush his/their teeth as well as you should brush yours. So keep up the good work! To prevent bat breath.
After.
ToothBrush!
you only need to brush your teeth for 1.5 to 2 minutes, but it wont do you any harm to brush them for longer