no
You call it... An external mouth guard.
buy a new mouth guard
People can breathe through the mouth. It may be uncomfortable to do so over the long haul, but it is possible. You would have to guard against dry mouth.
You take them out because if you keep them in and have a mouth guard in the denture cuts your mouth all up.
Yes, if the sperm is still alive there is the possible chance she can get pregnant.
open your mouth and close your eyes, find shelter as soon as possible and do not leave the shelter
no
teeth
Yes you leave them in you mouth
wallmart
arthur wood
Mouth Piece, its used as a guard for your teeth.