Nocturnal bruxism. A neurologist names the dangerous causes of teeth grinding in sleep "This condition occurs due to the fact that a person begins to unconsciously jump the jaw during sleep. Nocturnal bruxism has several causes. It can also be a pause in breathing during sleep, when a person tries to catch his breath and unconsciously squeezes the chewing muscles, moving the jaw," said neurologist Regina. Among the reasons for this phenomenon, the expert also listed gastroesophageal reflux, or heartburn. In addition, according to her, erosion can be triggered by ear, nose and throat pathologies that cause breathing difficulties: a person tries to restore it and reduces the jaw. Read news I will now on MAX.