Child B (3 years, Low risk, fluoridated water) should use which concentration?
Prevention and cariology questions test evidence-based decision-making — fluoride protocols, caries risk assessment, recall scheduling. This exam-level vignette tests your ability to work through clinical details and arrive at the correct management.
Three children: Child A (15 months, Low risk), Child B (3 years, Low risk, fluoridated water), Child C (8 years, At-risk). Child B (3 years, Low risk, fluoridated water) should use which concentration?
- A. 1000 ppm — standard for all children over 18 months regardless of water source
- B. 400 ppm — Low risk, 18 months to 5 years, on fluoridated water uses this concentration
- C. No fluoride toothpaste — children under 6 years should avoid fluoride paste in fluoridated water areas
- D. 5000 ppm — high concentration needed due to thinner primary tooth enamel
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Show the answer and cited explanation
Low risk, 18mo-5yr, fluoridated water: 400 ppm. Conditional upgrade to 1000 ppm ONLY 'if not drinking fluoridated water.' This distinction is a key exam trap. SOURCE — Evans RW, Dennison PJ. CMS for children, ADJ 2009;54:381-389, Table 8
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