The present invention describes a novel antimicrobial ion delivery system (IDS) article, methods of making the article, and its applications in cleaning dentures and dentistry equipment. The novel IDS entails a source of oligodynamic metal ions embedded in a matrix that allows for the release of metal ions in water at concentrations that are biocidals and prevent biofilm formation. The preferred IDS contains particles made of metallic alloys and bound to a matrix that ensures the controlled release of ions in water. The novel IDS is safe for use in humans and it is environment friendly and biodegradable.