Plackers 10 count grind no more dental night prate counter, used for bruxism which is more commonly known as teeth grinding or clenching. The first disposable and ready to use night guard, offers a cost effect counties solution that provides exceptional comfort, prate count ion and hygiene. One size fits all may be worn on upper or lower teeth. Meets the demanding needs of both clinchers/grinders. No boiling, cutting or molding required, it's an instant fit every time. Wear up to 3 days and throw away.