Abstract: The three-dimensional correlation of images of a human organ, especially dental arcades, uses an impression in the occlusive position, providing a reference in the form of three mutually spaced reference points. Three-dimensional views are taken of the impression and the points and views are also taken with the impression removed. Using the images of the reference points as a basis, the sets of views are then correlated to bring them into a single referential system.
Abstract: A device for determining mandibular motion wherein three light emitting diodes at the vertices of a triangle are temporarily fixed to teeth of the subject, the light emitting diodes are sequentially energized, and two sensors responsive to the light emitting diodes are mounted on a headpiece applied to the head of the subject and are trained on the light emitting diodes.