An oral appliance including an upper body having an upper body channel to receive a maxillary dentition of an upper dental arch, a lower body having a lower body channel to receive a mandibular dentition, and at least one node disposed on the lower body base outer surface to engage the upper body outer surface upon receipt of the maxillary teeth of the upper dental arch in the upper body channel and the mandibular teeth of the lower dental arch in the lower body channel.
