Teeth grinding and jaw clenching (also called bruxism) is often related to stress or anxiety. Another commonly cause is due to crowding and uncommon bite. It does not always cause symptoms, but some people get facial pain and headaches and it can wear down you teeth over time. Most people who grind their teeth are not aware they are even doing it. It gets pick up by your dentist with regular check ups.
Chronic teeth grinding can result in sensitivity, fracturing or shipping, loosening or even loss of your teeth. If the grinding habit is left untreated it may even wear teeth down to stumps.
Occlusal splints are one of the most commonly known treatments used to treat bruxism (teeth grinding) They are used to relieve pressure from the jaw joint and teeth and are mainly worn at night. The purpose of the splint is to keep your teeth apart, allowing the muscles to relax. It also protects your teeth from further damage caused by grinding.