half an hour
One day
The floride in the tooth paste takes that long to react or harden the surface of the tooth. The rest if the time is useful in cleaning the teeth, but to really clean the area between the teeth use a dental irrigator.
As long as the author of the story decides they should be.
That is up to your orthodondist. It also depends how long your treatment plan is and how much work your teeth needed.
Your teeth are always shifting slightly, so as long as you would like them to stay how they are after braces, you need to wear your retainer forever. Not 24/7, but at least once a week or at night should keep them in place.
You can after a hour of treatment, (takes about that long for the pores on your teeth to close)but that kind of defeats the purpose. You would be wasting your money two ways, on treatment and cigs
You should keep it in for as long as the dentist that fitted it advises.
10 days
10 days
Echidnas do not bite, as they do not have teeth. An echidna has a long, sticky tongue which it uses to catch termites and ants.
Yes it should be
You should go to a dentist and tell him or her that you need your front teeth filled.
dentists say 2 to 4 minutes