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Fluoride Mouthwash Minimum Age — ORE Part 1 MCQ

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EasyDental Public Health & EpidemiologyFluoride Mouthwash Minimum AgeORE Part 1

A parent asks at what age their child may start using a fluoride mouthwash. According to Delivering Better Oral Health, what is the recommended minimum age?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: D8 years

**A. 8 years** is correct. Delivering Better Oral Health advises that a daily fluoride mouthwash or mouthrinse containing 0.05% w/v sodium fluoride (230 ppm fluoride) may be considered from age 8, as an adjunct to twice-daily brushing with at least 1,350 ppm fluoride toothpaste. It is most likely to be useful for patients at higher caries risk and should be used at a different time from toothbrushing. Ages 3 and 5 relate more closely to age-specific toothpaste advice, not fluoride mouthwash. Seven years may be recalled from other preventive guidance, but it is not the threshold stated in Delivering Better Oral Health. Twelve years is unnecessarily late and is not the recommendation.

Reference: Department of Health and Social Care, Welsh Government, Department of Health Northern Ireland and NHS England. Delivering Better Oral Health: an evidence-based toolkit for prevention, Chapter 9: fluoride, updated 10 September 2025. https://www.gov.uk/government/publications/delivering-better-oral-health-an-evidence-based-toolkit-for-prevention/chapter-9-fluoride