Changing Color Toothpaste may help kid brush longer.
Retired Dentist Invents Color Changing toothpaste called Vortex. St. Louis dentist, inventor and retired Chaminade chemistry teacher Dr. Howard Wright has invented Vortex, which bills itself as the world’s first color-changing toothpaste. Dr Howard Wright hopes the color-changing process, from red and blue to purple, will make kids want to brush their teeth longer and more vigorously. Kids from the Hazelwood Community Center Tiny Tots program were the first to try the FDA-approved Vortex at the Delta Dental Health Theater.