High-Fluoride Toothpaste Strength — MFDS Part 1 MCQ
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Correct answer: B — 2,800 ppm and 5,000 ppm
Explanation lettering: C = shown as A · A = shown as B · B = shown as C
A is correct. Higher-dose fluoride toothpastes used in UK dental practice contain 2,800 ppm or 5,000 ppm fluoride. The 2,800 ppm preparation may be considered for high-caries-risk patients aged 10 years and over; 5,000 ppm toothpaste is restricted to those aged 16 years and over. Their need should be reviewed as caries risk is reduced. Toothpastes containing approximately 1,350–1,500 ppm are standard-strength products, so options B and C each include a routine concentration. The concentrations in D are not higher-dose toothpaste strengths. Although 5,000 ppm is appropriate, 10,000 ppm in E is not one of the recognised UK higher-dose toothpaste concentrations.
Reference: Department of Health and Social Care, Welsh Government, Department of Health Northern Ireland and NHS England. Delivering Better Oral Health: Chapter 9, Higher dose fluoride toothpaste, updated 2025. https://www.gov.uk/government/publications/delivering-better-oral-health-an-evidence-based-toolkit-for-prevention/chapter-9-fluoride