Temperomandibular disorders are a term used to describe a number of painful and non-painful disorders affecting the muscles of mastication, the temporomandibular joint, and the contiguous structures.The etiology of TMJ pain has been a subject of debate. Modern etiologic theories for the development of TMD contain different external and internal factors. There is a great controversy related to the role of occlusion in the etiology of TMD. Occlusion has an important place within the multi-factorial concept of temporomandibular disorder (TMD) etiopathogenesis as well as in every form of dental...