Efferdent Overnight Whitening Denture Cleanser Tablets give you a deep clean with overnight whitening for brighter retainers, dentures and other dental appliances. With 50% more brightening boosters (as compared to Efferdent Complete Clean), Efferdent Overnight Whitening will provide brighter and cleaner dental appliances. Using its powerful effervescent cleaning action, it kills 99.9% of odor-causing bacteria, while effectively reducing plaque buildup. The first denture cleanser tablet brand accepted by the American Dental Association, Efferdent Overnight Whitening Denture Cleanser Tablets eliminate the most stubborn stains in hard-to-reach places - even between teeth. It also removes food particles that can cause gum irritation, so your mouth will feel just as good as it looks. You'll smile with confidence knowing that your teeth and gums are clean, bright and healthy.