US Patent No. 8,999,298 B2; The National University Corp. Okayama University, Okayama-shi, Japan, has patented a dental composition that is comprised of phosphorylated saccharide selected from the group consisting of phosphorylated pullulan and a phosphorylated mannan, a polyphosphoric acid and/or a salt thereof and a cationic bactericidal agent. The phosphorylated saccharide is a phosphorylated polysaccharide. The phosphorylated saccharide has hydroxyl groups that are phosphorylated in an am...