No. 1 dentist recommended denture cleanser. For partials. Kills 99.99% of odor-causing bacteria (soaking only, in laboratory tests). Protect metal clasps from corrosion. Micro clean formula. Why clean with Polident instead of toothpaste? Dentures are about 10x softer than natural teeth. Toothpaste contains abrasives that can scratch the denture surface. Bacteria, which can cause odor, can grow in those scratches. Unlike toothpaste, Polident MicroClean formula kills 99.99% of odor-causing bacteria in just 3 minutes (soaking only, in laboratory tests).