Dental Duty Retainer and Denture Cleaner Cleanser Cleaning Tablets 120 CountDental Duty Extra Strength Retainer and denture cleaning tablets will get the job done. We've spent countless hours in research & development crafting and perfecting a refreshing mint flavor that actually works, without a nasty and harsh chemical aftertaste. REMOVES STAINS & DISCOLORATION Whether it's a retainer, set of dentures, or other device, dental appliances become yellowed and discolored without proper maintenance. Dental Duty tablets use