A great reduction in plaque and tartar would be to get the PERIOGEN starter kit! Periogen Complete Oral Health Rinse can be used just like a mouthwash or delivered via an oral irrigator. Daily use is as important as brushing and flossing. Kudos to Dr. John Andersen, the co-founder and President of The Periogen Company, He and his brother, the late James Andersen, developed Periogen Oral Rinse. Dr. John Andersen holds an MBA from Embry-Riddle University and a DBA from Niels Brock California International Business University.