Hinge Axis–A journey from Past to Present

Abstract

The idea of hinge rotation as related to functional jaw movements has become a bitterly contested tenet in dental literature. Indeed, the validity of rotational axes is still being contemplated in various articles published recently. The first actual kinematic location was done under the leadership of Dr. B.B.Mc Collum through the California Gnathological Society and its credit for the idea was given to Dr. Robert Harlan. Various schools of thought exists on the existence and the necessity to locate hinge axis especially in the field of dental practice when restoring lost natural teeth. So let’s explore and identify the significance of hinge or the transverse axis and the various methods to locate the same.