Summary
Gnathology has gained wide acceptance in some circles of reconstructive dentistry. Increasingly, the requirements of this philosophy are imposed upon the orthodontic branch. Mandibular position in centric relation is the very basis of the gnathological concept. In an overview of cephalo-facial growth, it has been demonstrated, however, that the determining mandibular position for occlusal orientation during the entire developmental period cannot be located along the border range of the hinge axis. In this clinical endeavours, the orthodontist needs a mandibular reference position independent of occlusion to be able to diagnose functional deviations and to continuously assess the maxillo-mandibular relationship during the functionally desorienting treatment phases, at the conclusion and after treatment. In this respect, the most retruded contact position has great merits although the requirement of ideal fossa-condylerelationship is not entirely satisfied. Therefore, centric relation qualifies, with some reservations, only for being a diagnosticstarting position. It would be misjudgement, however, — as demonstrated by the presented cases — to assign to this terminal mandibular position anabsolute status of reference from and to which, without restrictions, all dynamics of occlusion have to be directly built.
No comments:
Post a Comment