It is recommended to brush your ferrets teeth about every other week
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.
Twice a day.
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!
Yes
It's important to brush your teeth after every meal so there is no plaque buildup.
you should brush your teeth 2 a day morning and night for 2 minutes
every time they eat go to sleep and wake up
To clean your ferrets teeth, use a products made for felines - either a bristle brush or a finger toothbrush (gauze in another option) and toothpaste made for pets. You start slowly letting your ferret taste the toothpaste, massaging the mouth and cheeks and slowly progress to his teeth and gums with your fingers, then proceed with the brush. You may have to scruff him or get someone to help you. Refer to link below for more detailed information.
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