Abstract: An intraoral mandibular advancement device for treatment of sleep disorders includes a maxillary appliance having a protrusive element distending from the anterior portion of the maxillary appliance, and a mandibular appliance having a polymeric shell with recesses to receive and removably engage the mandibular teeth. A lingual spacer extends posteriorly from the anterior portion of the mandibular appliance to contact the anterior aspect of the protrusive element and thereby cause mandibular advancement. An anterior stop extends upward from the occlusal surface of the anterior portion of the mandibular appliance to contact the anterior portion of the maxillary appliance and thereby maintain separation between the anterior teeth and provide a mechanism, by way of its vertical reduction, to reinstate posterior contacts as the jaw moves forward. Posterior stops on the occlusal surface of the posterior portions of either appliance maintain separation between the posterior teeth.

Abstract: An intraoral mandibular advancement device to treat sleep disorders in a user having an obstructed airway includes a maxillary appliance with a main body for removable attachment to the maxillary teeth; a protrusive element distending from the central portion of the main body; and retention means extending from the main body for retention of the device on the maxillary teeth during sleep. A mandibular appliance removably attaches to the mandibular anterior teeth and includes a lingual spacer that extends posteriorly from the mandibular anterior teeth. The anterior aspect of the protrusive element of the maxillary appliance contacts the posterior edge of the lingual space and thereby causes mandibular advancement.