A denture-securing device is provided that is usable to substantially secure a denture within a mouth. The denture-securing device may be used with top dentures, bottom dentures, or other configurations of dentures. The denture-securing device may advantageously secure dentures without requiring use of adhesives. The denture-securing device may also reduce the likelihood of food getting under dentures, provide a firm yet soft and comfortable fit, and minimize rocking of lower dentures. The denture-securing device may advantageously be secured to gums using a suction fit through saliva or other sources of moisture.