Hulio Slutzky

1 INTRODUCTION Temporomandibular disorder (TMD) is an umbrella term for various clinical conditions involving the masticatory muscles, the temporomandibular joints (TMJ), or both.1 TMDs are the most common cause for nondental orofacial pain,1 affecting sleep quality,2 oral health-related quality of life,3 leading to increased healthcare use and social costs.1 The TMD prevalence varies by population and age and is higher among females. Christidis et al.