According to one embodiment, a universal oral appliance is provided. The universal oral appliance comprises an arched frame configured to be positioned proximate to the occlusal surface of a users dental arch such that the arched frame extends beyond the cuspids of the users dental arch when the arched frame is inserted in the users mouth. The arched frame comprises a universal coupler configured to removably engage a dental attachment. The universal coupler comprises a substantially planar surface proximate to and extending across the midline of the arched frame. The universal coupler further comprises a first rail coupled to a first end of the substantially planar surface, and a second rail coupled to a second end of the substantially planar surface. The first rail, second rail, and substantially planar surface form a slot.