the invention relates to devices designed to be used in conjunction with continuous positive airway pressure devices in order to improve the performance of the positive airway pressure in treating a disorder in breathing during sleep . in one embodiment , connection points on each side of both a maxillary and mandibular bite form are connected in order to maintain a space between the teeth substantially equal to the maximum intercuspal distance or space . used with available continuous positive airway pressure devices , the invention can substantially improve obstructive sleep apnea or similar treatments with lower failure or patient non - compliance rates .