this invention relates to improved methods and apparatus for recording and simulating the condylar movement of an individual . this invention also provides a digital dental articulator method which is designed to simulate the jaw or condylar movements of a patient . this instrument enables a dentist to obtain the necessary diagnostic information for treatment of the occlusal irregularities , such as malocclusion , and the fabrication of dental restorations or “ dentures ” and for the development of an orthodontic treatment plan .