The invention comprises a method of using a mouthpiece of medical grade silicone that has two connecting portions, one a molded shallow trough that wraps around and contours the teeth, and another a flap or wing portion that attaches to the front of the shallow trough and that acts to sit between and keep separate the teeth and lips. This method improves and retains dental alignment and occlusion, reduces jaw tension, encourages the tongue to stay on the anterior alveolar ridge/incisive papilla, promotes a proper breathing and mouth placement and corrects swallowing patterns.
