Temporomandibular joint and muscle disorders include a complex and poorly understood set of conditions that can cause pain in the area of the jaw joint and associated muscles.Pain is the most common symptom and is often described as a dull aching pain in the jaw joint and nearby areas,including the ear.However,these diseases and disorders are difficult to diagnose,because facial pain can be a symptom that represents many conditions.Most of the sources of the pain are attributed to diseases originating in the head.However,the purpose of this presentation is to expand the symptoms of facial pain to include angina pectoris,which often results from ischemic heart disease.A few clinical studies have shown that patients experienced pain in the anterior maxillary areas that sometimes radiated to the neck and shoulder regions.These patients had normal temporomandibular joints but had severe coronary artery disease and myocardial infarction.It is also possible that gastroesophageal reflux may also contribute to the jaw and neck pain that may mimic temporomandibular jaw pain.Angina pectoris is commonly referred to the chest and left arm,and sometimes to the fight arm; however,occasionally,the pain radiates to the neck and jaw.Historically,angina pectoris was treated by performing surgical sympathectomies,which relieved the pain in approximately 70% of the patients.