Accidents can happen during any physical activity. A mouth protector can help protect the teeth as well as the soft tissues of the tongue, lips and cheek lining. Over-the-counter stock mouth protectors are inexpensive, pre-formed and ready-to-wear. Boil and bite mouth protectors offer a better fit than stock mouth protectors. Softened in hot water, they are more adaptable to the shape of the mouth. Custom fitted mouth protectors are made from impressions of an individuals' teeth and gums. They are more expensive, but a properly fitted mouth protector will stay in place while being worn, making it easy for one to talk and breathe. Custom mouth protectors as especially recommended for use following prior injury to the mouth . Subsequent trauma can result in more serious consequences to previously injured teeth.