Sparkle Dent denture whitener concentrated formula returns dentures to sparkling luster! Denture whitener is safe for soft liners, too. Advanced formula does more than clean...it brings back fresh color, removes tartar, plaque and calcium deposits. With Sparkle Dent, stains from coffee, tea and food are gone! One 8 ounce denture cleaner bottle lasts up to 6 months.<br>