Concerning the different interpretation on the pathological and clinical evolution of the TMJ dysfunctions, the most common of these pathology is the condyle-disk incoordination. This study analyzed the evolution of TMJ dysfunctions examined at the maxillo-facial department of the University of Rome "La Sapienza". The non therapeutic approach does not consider an addition al control-sample of the non treated being itself a control-sample of a parallel work whose aim was to analyze patients who had undergone a complete therapeutic cycle.