The American Dental Association (ADA) says that 70 percent of American adults brush their teeth twice a day. A full 30 percent brush once or not at all. What’s the result of oral hygiene neglect? Gingivitis, tooth decay and bad breath are common problems. When combined with little to no preventive care at the dentist’s office, you have a roadmap to oral health disaster, says Dr. Clarine Green Hightower, dentist in Bowie, MD. Learn her specific tips for toothbrushing your way to better oral health.