Abstract: A flexible strap type mounting device formed of one-piece resilient plastic and including a mounting base having an end wall at one end providing an item engaging abutment at one side of the end wall and a keeper flange at the other end of the end wall, a flexible strap integrally joined at one end to the end wall and arranged to form an item retaining loop outwardly of the abutment when the distal end of the strap overlies the keeper flange, and an elongated relatively rigid head integrally joined intermediate its ends to the distal end of the strap and provided with a nose portion at one end engageable with the keeper flange and a lever portion at its other end for moving the head relative to the strap between an open position in which the nose portion extends transverse to the distal end of the strap and a latch position in which the nose portion extends in underlying relation to the distal end of the strap.

Abstract: An athletic mouthguard for use by participants in contact sports to simultaneously protect and topically treat the teeth. The mouthguard is a generally U-shaped channel molded preferably from a composition of thermoplastic resin and a fluoride compound such as sodium fluoride, stannous fluoride, or sodium fluorosilicate. The fluoride compound is released from the molded resin mouthguard to the wearer's teeth over extended periods of use.