Patent ID: 11903868
Assignee: nan
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 17:
18. An appliance for treating jaw conditions in a patient; the jaw comprising a maxilla and mandible, the appliance comprising an upper assembly and a lower assembly;
the upper assembly being shaped and configured to be applied to teeth of the patient's maxilla; the upper assembly comprising an upper transition portion having an anteriorly facing sloped upper transition surface defining (1) an upper reverse angle relative to an occlusal plane of between about 22 degrees to equal to or less than about 90 degrees such that a lower edge of the sloped upper transition surface is anterior of an upper edge of the upper sloped transition surface, and (2) an upper lateral movement aspect angle of about 30 degrees to less than 90 degrees with respect to a horizontal midline (HML) of the jaw; and
the lower assembly being shaped and configured to be applied to teeth of the patient's mandible; the lower assembly comprising a lower transition portion having a posteriorly facing sloped lower transition surface defining (1) a lower reverse angle relative to an occlusal plane of between about 22 degrees to equal to or less than about 90 degrees such that a lower edge of the sloped lower transition surface is anterior of an upper edge of the sloped lower transition surface, and (2) a lower lateral movement aspect angle of about 30 degrees to less than 90 degrees with respect to the horizontal midline (HML) of the jaw;
wherein the upper and lower transition surfaces are shaped such that, in use, the upper and lower reverse angles of the upper and lower transition surfaces prevent retrusion of the mandible relative to the maxilla to maintain the jaw in a treatment position when jaw muscles of the patient are relaxed, and wherein the upper and lower lateral movement aspect angles of the upper and lower transition surfaces cooperate to control lateral movement of the mandible relative to the maxilla while the appliance is being worn.