Dental Sealants — NDEB AFK MCQ
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Correct answer: B — Within 2 years of eruption when the tooth is caries-free
Pit and fissure sealants are most effective when applied soon after eruption (within 2 years) when the tooth is caries-free and the deep pits and fissures are most vulnerable to caries. First permanent molars (age 6-7) and second permanent molars (age 11-13) are the primary targets. Sealant retention is the key determinant of effectiveness. Evidence supports sealants as reducing caries by 70-80% in sealed teeth.
Reference: CDA – Position Statement on Dental Sealants; ADA – Evidence-Based Dental Sealant Guideline, 2023