The Physiologic method for the Centric bite registration

Abstract

4 methods of occlusal registration, that is the chin guide technique, the bilateral technique, the three-finger technique and the leaf-gauge technique were compared with use of a portable electromyograph EM-II manufactured by Myotronics, USA. The result showed that the wave form obtained in the leaf-gauge technique was similar to that obtained at the inter-cuspal position, and that the leaf-gauge technique is the superior method of the centric bite registration to the chin guide technique, the bilateral technique and the three-finger technique. The chin guide technique showed the most posterior position of the condylar head, while both the bilateral technique and the three-finger technique showed the most superior-anterior position of the condylar head, resulting in disturbed wave forms of E.M.G.