Mouthguard designed to fit over all braces and appliances to protect the upper and lower teeth, TMJ and lips. Hinged extensions that fold into the buccal area for patient comfort. 4.25mm posterior bite tabs protect the TMJ, prevent anterior teeth from clashing and don't cause gagging. Anterior opening for easy breathing and speech. Natural retention through the muscles of the lips and cheeks. Doesn't interfere with orthodontic treatment. Ideal for use during sports. Small: age 8-10 years; medium: age 10-12 years; large: age 13+ years. Large size equipped with extended bite tabs to accommodate occlusion of 2nd molars.