Fits Aesthetic and Metal Brackets. Snaps easier into place and stays more secure than competing brands. Individually packaged for patients, great for carrying in book bags, handbags, or gym bags. Each patient set of Comfort Covers protects both the upper and lower arch. Ortho Technology’s Comfort Cover shields the patient’s lips and cheeks from the discomfort often associated with orthodontic treatment or activities where the risk of oral laceration could occur, such as playing musical instruments or light contact sports where mouthguards are excessive.