Ernest R. Granger
Gnatholator Company, Inc. Pelham Manor, NY
The Gnatholator is generally classified as a fully adjustable or Gnathological instrument. It is an arcon articulator with adjustable intercondylar distance, and variable lateral and horizontal condylar guides. Further features include curvilinear Bennett guides, interchangeable curvilinear condylar paths of various radii, and semicircular arc controls for the horizontal and vertical axes of the rotating condyle. It has a curved incisal pin to follow the arc of closure; however, the incisal guide table is only adjustable in protrusion. The terminal hinge axis is recorded for mounting the casts in the instrument. The Gnatholator controls can be set by either check bite records or through the use of a pantograph.
Sharry JJ (ed.): Complete Denture Prosthodontics (ed.2) 1968. McGraw-Hill Book Company, Inc., New York, NY.
Dr. Edgar N. Starcke's articles in the Journal of Prosthodontics have more information on the history of articulators.