One hundred and twenty one patients with mandibular dysfunction complaining of maxillofacial pain were clinically observed.Since no organic change was detected at the temporomandibular joints in any, it was surmised that the dysfunction was due to functional imbalance.The dysfunction was symptomatically divided into three types: arthrogenic, myogenic and mixed.The incidence was highest in the arthrogenic type (57%) mainly comprising arthromotoralgia, followed by the myogenic type (39%) mainly comprising contraction of the masticatory muscles.Usually dental and drug combination therapies were given and favorable results were obtained.
