What practice reduces the risk of tooth decay?

• A. Eat less sugar and brush teeth
• B. Eat more sugar
• C. Skip brushing teeth
• D. Eat only meat

Answer: (A)

Reducing tooth decay comes from limiting the sugar that oral bacteria feed on and from removing dental plaque. When sugar is present in the mouth, bacteria in plaque metabolize it and produce acids that dissolve minerals from the enamel. Eating less sugar cuts down the substrate for acid production, while brushing teeth helps remove plaque and food particles. Using fluoride toothpaste adds a protective layer by promoting remineralization, making enamel more resistant to acid. Together, these practices address both the source of acid and the tooth’s defenses, which is why this option is the best way to reduce decay. The other choices either increase sugar exposure, leave plaque unchecked, or don’t improve enamel protection, so they don’t reduce decay as effectively.