These are usually recommended for patients who have a teeth grinding habit.(bruxism). Bruxism is when you clench (tightly hold and your top and bottom teeth together). People clench and grind without being aware of it during both day and night. Grinding can wear down your teeth sometimes and it may cause eating disorders and headaches. To prevent this,professional custom dental night guards have been used to treat teeth grinding and clenching .There are many different types of splints, some fit over the top teeth and some on the bottom. They are made professionally to keep your jaw more relaxed and to avoid grinding your teeth. No anesthesia is needed. For more information please visit www.pubmed.clenching.