Cranio-mandibular disorders can affect people of all ages. The presence or absence of teeth does not determine the occurrence of parafunctions such as bruxism. With age, degenerative changes are more common in the aetiology of temporomandibular disorders. Particularly in edentulous patients, it is important to diagnose the symptoms of temporomandibular disorders localized extra-orally, such as jaw movement disorders, tension-type headaches or hearing disorders. It is not uncommon for these symptoms to be exacerbated by many years of using complete dentures with lowered vertical dimension of occlusion. The diagnosis of an active form of temporomandibular dysfunction necessitates a step-by-step therapeutic approach. A case of a patient suffering from temporomandibular disorder, tinnitus and reduced vertical dimension of occlusion on full dentures was described. Authors reflect on TMD problems in elderly patients. Diagnostic and therapeutic protocol with the use of adaptation splint has been presented. The patient’s case is an argument for the need of interdisciplinary cooperation between doctors of various specialties to ensure good standards of diagnosis and treatment of TMD patients.