Orthopedic pressure appliance and method for controlling development of the maxillary bone

摘要

An Orthopedic Pressure Appliance is adapted to be retained in the mouth with resilient wires extending therefrom for attachment to a headcap by elastomeric means for urging the appliance against the maxillary teeth. The upper surface of the appliance has a posteriorly upward sloping flange for engaging the gingival third of the labial surfaces of the anterior teeth and a posteriorly upward sloping surface for supporting the incisive edges of the anterior teeth. The labial-buccal flange tapers downwardly and posteriorly away from the anterior portion thereof to prevent impingement on the gingiva and alveolus. A substantially flat and deep lower surface is provided to avoid entrapment of the mandibular anterior teeth.