The MORA appliance, as described by Dr. Gelb, is designed to reposition the mandible to achieve neuromuscular balance and an optimal condylar-fossae relationship. MORA stands for Mandibular Orthopedic Repositioning Appliance. Advanced study in treating temporomandibular joint dysfunction is a prerequisite to achieve optimum results with this appliance.

The appliance itself is simple and elegant. It consists of clear acrylic bite pads covering the molars and bicuspids connected by a heavy, oval lingual bar. Usually the laboratory furnishes the basic appliance with minimal occlusal coverage and the operator establishes the correct neuromuscular and optimal condylar-fossae relationship directly on the patient using cold cure acrylic. Through use of a Verticulator and a very precise wax construction bite, it is possible to complete the entire appliance in the laboratory. (See Appliance #6205) Note - Besides being used to treat TMJ pain and dysfunction, there has been much interest of late in the use of the repositioning appliance to release or enhance strength in athletes.