Founded by Chicago dentist and periodontist Dr. John O. Butler, the John O. Butler Company is a manufacturer of toothbrushes, dental floss and oral care products marketed under the Butler and GUM? brand names; in 1988 the company was purchased by Sunstar, Inc., a major manufacturer of personal care products. The ?Sunstar? name refers to morning and evening, the times when people tend to brush their teeth; over time it has replaced the Butler brand on products and packaging. The Gum? product line includes oral health care items such as gum stimulators; dental cleaners; oral care cleaning kits; Soft-Picks? designed to massage gums and remove food; anti-cavity fluoride toothpaste for children; Canker-X? pain relief gel; angled flossers; Go-Betweens? Proxabrush? dental cleaners; 4-angle cleaners; children?s toothbrushes; waxed dental floss; kid?s flossers; the Proxabrush? Go-Betweens? system for removing plaque between teeth, bridges, braces, dental implants and more.