Temporomandibular disorders (TMD) is a collective term that unites all painful conditions of the orofacial region that are non- dental ethiology. It is taught that more than 75% of the worlds population experienced some sort of TMD symptom. Possible symptoms are: pain in the masticator muscles and temporomandibular joint, sounds or crepitations of the joint, limited function and headaches. Almost 50% of patients that suffer from TMD, suffer from some sort of headache. Today, headache attributed to TMD is a special diagnosis, not only in headache diagnosic, but also in TMD diagnostic. Exact cause why this two conditions are connected is not known, but there are a few theories. It is taught that the same inervation of the orofacial structures and the same or similar pain pathways are the main causes. Other possible causes involve proinflammatory cytokins and central sensitisation. In the diagnostics we use anamnesis, clinical examination and certain tests and questionnaries that are prescribed by the DC/TMD protocol. In the diagnostics, we can also use radiographic methods. In therapy, we give preference to conservative methods, mostly pharmacotherapy, cognitive behavioral therapy and occlusal splint therapy. If conservative methods don't show improvment, or in some arthrogenic TMD, we can use surgical methods such as arthroscopy and arthrocentesis.