What does secondary prevention prevent?

• A. Further deterioration of health that would result in extensive lesions of the teeth, pulpal involvement, or periodontitis
• B. Development of caries in primary teeth only
• C. Cosmetic issues
• D. None

Answer: (A)

Secondary prevention in dentistry focuses on stopping or slowing the progression of a disease after it has already started, so that it doesn’t become more severe. In the case of caries and related oral diseases, this means intervening early to prevent the decay from advancing to larger areas, reaching the pulp, or affecting the periodontal tissues. That is exactly what the statement describes: preventing further deterioration that would lead to extensive lesions, pulpal involvement, or periodontitis. The other ideas describe preventing disease from occurring in the first place (primary prevention), addressing cosmetic concerns, or are not applicable, so they don’t capture the goal of secondary prevention.