it's easy..
1. tie one end of string around the affected tooth
2. tie other end around the doorknob
3. pull door open
4. take a step back
5. take a deep breath
6. slam the door shut
7. now you have a tooth on a string...make a necklace, play with your cat or get naked!
p.s.
this set was originally going to be called tooth-hurty..ya know like what time is it?