If you find yourself waking up with a sore jaw and teeth in the morning, you may be grinding your teeth through the night. Teeth grinding may be a symptom of an underlying disease, but it also may occur because of anxiety or abnormal alignment of the jaw. Teeth grinding may be a cause of TMJ disorder, as well, which is a disorder that affects the jaw joint that allows the mouth to open and close. If you find yourself suffering in the morning from discomfort you should seek help from a dental professional, as teeth grinding may lead to other oral cavity problems.
A lot of the time, teeth grinding happens sporadically to a lot of people, and does not cause any harm. Situational anxiety can cause people to grind their teeth in the night, or from situational stress. If this is the case, you most likely will not notice you even grind your teeth.