plackers stop grinding dental night protector, pack of 2 stop grinding if you clench or grind your teeth or believe you are doing so at night while sleeping, you may be causing damage to your teeth. now you can easily, comfortably, and economically help prevent tooth damage and facial pain that grinding can cause. the stop grinding protector is soft and shock absorbant. it contains a special 2 level design that allows it to provide comfort and protection without breaking the bank. one size fits all. provides comfort and protection. custom fit design that molds specifcally to your teeth for a sleek and secure fit.