[Recording of masticatory cycles by electrognathographic method].

Electrognathographic method of the three-dimensional recording of mandibular movements can be successfully used in the analysis of spatial shifting of interincisal point during mastication. Investigations carried out in the world by a sirognathograph (Sirognathograph, Siemens A.G., Bensheim, W. Germany) resulted in classifications of the masticatory cycles in order to determine types of samples and to establish the basis for comparative studies of patients with or without disorders in the stomatognathic system. Since our preliminary sirognathographic studies also confirmed the existence of the reported types of masticatory cycles, we considered it necessary to present here these classifications and to emphasize the positive results of their use in both scientific research devoted to analysis of function or disfunction of the stomatognathic system, and in estimation of therapeutical effects of prosthetic aids in complete denture wearers, as applied in routine clinical practice.