What causes inside cheek biting at nite?

Cheek biting: You should see your orthodontist as it could be mal allligned upper and lower jaw teeth or one or more teeth not properly placed and could be hitting hte insid eof your buccal cavity.

Cheek biting: Can be from map-aligned teeth, swollen cheek, habit, and so many other factors. See your Dentist for diagnostic evaluation. If teeth are maligned you may require tooth straightening. If cheek swollen the cause of the swelling will have to be treated. If a pernicious habit an Orthodontist can make your cheek guard. But first find out what's causing your problem.