Our efforts to eradicate caries should focus on which approach rather than a vaccine or targeted antimicrobial?

• A. Changing the environment of the biofilm & maintaining a neutral pH
• B. Developing new antibiotics
• C. Surgical restoration only
• D. Eliminating all carbohydrates from the diet

Answer: (A)

Caries is driven by the ecology of dental plaque: bacteria in biofilm produce acids when they metabolize fermentable carbohydrates, and those acids dissolve enamel. So the most effective approach is to change the biofilm environment to reduce acid production and promote remineralization. Keeping the plaque environment near neutral pH minimizes demineralization and works with fluoride to strengthen tooth structure, making it harder for caries to develop. This ecological plaque management targets the disease process itself rather than trying to remove bacteria with antibiotics or relying on a vaccine, which isn’t practical for such a complex, multi-species biofilm. Surgical restoration only fixes lesions after they form and doesn’t prevent new ones, while removing all carbohydrates is not realistic; the goal is to minimize fermentable carbohydrate exposure and support protective factors like saliva and fluoride.