Search

The authors used electromyographic and computerised magnetic gnathokinesiographic equipment to examine habitual mastication and electromyographic activity of the masseter and anterior temporal muscles in two subjects with complete dentition, physiological functional occlusion and with no history or clinical records of cranio-mandibular disorders (CMD). The results obtained show the presence of common models of masticatory movement and electromyographic activity which conform to previously published data.

The paper describes the material and methods used to examine two subjects with cranio-mandibular disorders (CMD), one of a predominantly articular type and the other of a prevalently muscular type. Both patients presented significant and specific alterations of masticatory movement and electromyographic activity before treatment, and this enabled a differential diagnosis between the articular and muscular forms of CMD to be made. On the contrary, at the end of definitive occlusal treatment, kinesiographic and electromyographic parameters in the two subjects were normal and physiological, thus confirming the resolution of clinical symptoms.