Teeth grinding at night may be caused by mental factors, misalignment of teeth, gastrointestinal disorders, and tooth replacement.
1. Mental factors: If a person is emotionally tense, anxious, fearful, depressed, etc., he/she may release these emotions by grinding his/her teeth at night, which usually lasts for a longer period of time.
2. Misaligned teeth: Due to misaligned teeth, the bite relationship is poor and the chewing position is often abnormal. When sleeping at night, the chewing muscles often contract unconsciously and teeth grinding occurs.
3. Gastrointestinal dysfunction: Gastrointestinal dysfunction may lead to bite muscle tension disorders during sleep at night, causing unconscious teeth grinding.
4. Tooth replacement: For children during tooth replacement, because of the itchy gums, may produce a slight teeth grinding phenomenon.
When grinding teeth at night, you should actively search for the cause of the problem, adjust your daily routine and psychological state, and seek professional medical help if necessary.