Changes in plaque fluoride levels by school-based fluoride rinsing and tablet programs in Bangladesh

Abu Nasir Mohammad Nazmul Hossain, Fabio Correia Sampaio, Frithjof Ramm Von der Fehr, Pål Arneberg

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


The aim of this study was to evaluate the effects of school-based fluoride rinsing and tablet programs on plaque fluoride levels. A total of 42 children (8-9 years) were selected from two neighboring schools in Dhaka, Bangladesh. After caries recordings, vestibular plaque samples from the maxillary central incisors and mandibular first molars were collected and frozen on day 0 (baseline). The subjects of one school (rinsing group, n = 15) rinsed with 0.05% NaF, while those from the other school (tablet group, n = 16) used a 0.5 mg F tablet on the 5 school days during a 3-week period. The surfaces were sampled on the first and last school day every week. The fluoride and protein contents of each sample were analyzed using micro-techniques. The median plaque fluoride levels were 9.1 ppm at baseline in the rinsing group and 2.5 ppm in the tablet group (P < 0.05). This difference could in part be related to reported fluoride toothpaste usage. After 4 days on the fluoride programs, plaque fluoride levels in the rinsing group increased to 27.3, 24.5 and 14.2 ppm in the 3 consecutive weeks. The corresponding values after tablet usage were 8.0, 6.5 and 7.1 ppm, respectively. After 3 days without fluoride during the weekends, levels declined towards baseline values in both groups. Hence, the plaque fluoride levels in 8 to 9-year-old Bangladeshi children were increased by both rinsing and tablet programs, but the effect was not detectable 3 days later.

Original languageEnglish (US)
Pages (from-to)34-38
Number of pages5
JournalActa Odontologica Scandinavica
Issue number1
StatePublished - Feb 2003
Externally publishedYes


  • Caries prevention
  • Dental plaque
  • Fluoride rinses
  • Fluoride tablets
  • Plaque fluoride

ASJC Scopus subject areas

  • Dentistry(all)


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