Abstract: A system for compensating for geometric distortions inherent in a kinesiograph mandibular tracker which measures mandibular movement using an array of sensors generating respective outputs representing the distances between the sensors and a reference point on the mandible. The kinesiograph mandibular tracker generates approximate position outputs from the sensor outputs which correspond to the approximate vertical, anterior-posterior and lateral position of the reference point. The approximate position outputs are applied to the compensating system which periodically samples and stores the outputs. Each of the stored samples is sequentially digitized and applied to a processing unit. After the digitized signal for each approximate position output has been stored in the processing unit, the processing unit calculates the actual position of the reference point and sequentially generates digitized representations of the actual vertical, anterior-posterior and lateral positions of the reference point.