Visible Centric Recording Technique

Abstract

Gnathology is the science that treats of the biologics of the masticatory mechanism; that is the morphology, anatomy, history, phisiology, pathology and therapeutics of the oral organ, especially the jaw and teeth and the vital relations of this organ to the rest of the body.
It is not too much to say that the science of gnathology is based on the theory of terminal hinge axis and also centric relation.
Aside from this theory, it is really so necessary for us as the practioners to have an ability of recording them when we treat or diagnose the biologics of the masticatory mechanism by the gnathological concepts. Otherwise, the practioners who have not learned a method for precise location of the position of centric relation will have great difficulty analyzing the problems of the masticatory mechanism.
However, this is the fact that it is really a complicated matter not only recording centric relation but also understanding it for young unskilled dentists although they have learned through the seminars.
Author can find the reasons of this matter. This is the reason why there is no unifying concepts about“centric relation”, also technique how to manipulate jaw position for recording it. Since gnathology was born, a lot of methods have been advocated by many authorities, but almost of them, it is nothing and their experimental explanations are not clear.
Recently, it can be said there is growing agreement among authorities that the time honored definitions and also manipulations of“centric relation”are not valid.
The purpose of this article is to describe with above mentioned facts; (1) the concepts about centric relation concerning the jaw mechanism as lever system in mastication, (2) re-evaluation of manipulation techniques for centric relation from this standing concept, and (3) a method named“visible centric recording technique”, by which it can be grasped precise location of the position of centric relation easily as a point.