Oral parafunctional habits are categorized as the habitual exercise of the mouth and jaws, which are different from the everyday functional movements. Some of them are bruxism, tongue thrusting, finger nail-biting, and mouth breathing.
A mouth guard protects teeth in individuals who have the habit of teeth grinding. Mild cases or early stages of apnea and loud snoring have proved to be effectively reduced by the use of mouth guards in the night.
A night guard also called a splint or occlusal guard is a device made of rigid acrylic material placed in the mouth over the teeth to keep you from grinding your teeth. The mouth guards help to raise the bite and put the jaw in a position that helps relieve the patient from any discomfort and pain.