Denture cleaning tablets contain Alkaline Peroxide. Bubbles will be formed when the tablets dissolve in water, and these bubbles can help removing food debris and plaque that are adhered to the denture. However, it is scientifically proven that these bubbles are far less effective in cleaning dentures than brushing the dentures with detergent before bed. Therefore, it is essential to brush your denture daily with detergent. Although denture cleaning tablets are harmless to your body or denture, it should only be used as a supplementary cleaning agent to the denture.