TMJ pain is a multifactorial problem. TMJ disorders affect mostly women but men also suffer from it. The number of patients with TMJ disorders declines with age. In fact, older people without teeth seldom face TMJ problems.
The other common factor of TMJ disorder is stress. Epidemiology studies have shown that more than 70% urban populations (who face more stress) suffer from some form of TMJ problems during ones´ life time.