Oral appliance, system and method for correcting class III problems of mandibular prognathism

摘要

An oral appliance, a system and a method for correcting malocclusions may cause teeth and/or jaws of the patient to move into a corrected position. An upper body and a lower body of the appliance may be connected by a hinge. Lingual protrusions may extend rearward from the anterior portion of the upper body and contact the maxilla of the patient when the appliance is worn. A protrusion may extend from the anterior portion of the lower body forward relative to the mouth and contact the lips and exert a rearward force against the lower teeth.

主权项

1. An appliance for correcting a malocclusion in a mouth of a user, the appliance comprising:
a generally U-shaped upper body having an anterior portion configured to be adjacent to upper incisors and a posterior portion located rearward to the anterior portion, the upper body having an upper base with a perimeter defining an outer boundary and walls extending along the perimeter of the posterior portion of the upper body; a generally U-shaped lower body having an anterior portion configured to be adjacent to lower incisors, the lower body having a lower base with a perimeter defining an outer boundary, the lower base having a width which is configured to be greater than a width of the teeth of the user and wherein the lower body has walls extending along the perimeter of the lower body to define a trough, the trough being configured to contact the lower incisors as the appliance is worn in the mouth of the user; lingual protrusions extending rearward from the anterior portion of the upper body, the lingual protrusions being configured to contact a maxilla when the appliance is worn within the mouth of the user; and a bumper that is configured to define a labially enlarged area with respect to the outer boundary across a labial portion of the anterior portion of the lower body of the appliance so that a rearward force is configured to be exerted by the lips of the user against the bumper and cause a lower jaw of the user to move rearward relative to an upper jaw of the user as the lower appliance is worn within the mouth of the user.