Accuracy and Efficacy of Trazodone (Desyrel) on Sleep Quality and Pain Management of TMD Patient

Inclusion Criteria: * painful TMD, defined as chronic myalgia (\>6 months) with/without accompanying arthralgia per DC/TMD. * Pain should have been present 15 days in the last month * Pain of moderate to severe average intensity (at least 4 out 10 in a verbal numerical rating scale) in the last week. * Poor sleep quality according to specific question of PSQI questionnaire (response of fairly bad or very bad sleep quality in the las month). Exclusion Criteria: * Presence of any dental or orofacial pain disorder not meeting the above definition. * Use of other pharmacological treatment for TMD or sleep during duration of the study. Patients will be asked to discontinue any of those treatments before starting the study. * Use of any psychotropic medication or drug known to influence sleep or pain such as amphetamines, benzodiazepines, anticonvulsants, neuroleptics, or antidepressants. * Alcohol or substance abuse. * Presence of major neurological or psychiatric disorders, such as epilepsy, schizophrenia or major depression; other sleep disorders such as narcolepsy, sleep apnea syndrome (SAS) or REM sleep behavior disorder. * Presence of cardiovascular or bleeding disorders. * History of tachycardia. * Contraindications to Trazodone: previous allergic reaction to Trazodone, patients taking MAOIs. * Pregnancy or lactation.