Abstract: A flexible dental appliance a left posterior occlusal pad having a base and an outer wall including a plurality of loops; a right posterior occlusal pad having a base and an outer wall including a plurality of loops; and a support bridge between the left posterior occlusal pad and the a right posterior occlusal pad. The plurality of loops create gaps in the outer wall and extend over a buccal aspect of the teeth of an upper jaw for enhancing retention of the dental appliance. The plurality of loops engage the teeth at interproximal spaces and cementoenamel junctions.