Abstract
Among basic approaches to theory of occulusion at present, Gnathologie is easy to understand and of use. Its theory is however based on tightly mandibular joint so it is hard to be applied to temporomandibular disoder.
Therefore for treatment of TMD, it is going to be essential to determine the reference position without depend to mandibular joint.
In this article, Iʼd like to pursue the cause and the process of the phenomenon generated by its anteroinferior deviation which is called Posterior Openbite in order to consider where to situate the mandibular position.