Flouride Flashcards
Meth of action
Enamel is made of hydroxyapatite
Ca10(pO4)6(OH)2
F replaces OH2 to make fluorapatite
Post and pre eruptive effects
Post - most important
Interferes with plaque bac metabolism
Increases remin of enamel
Pre
Enamel less susceptible to effects of acid - but not exposed to any acid
Adult teeth develop form birth and erupt around 6
Population delivery method
Water, salt, milk
Individual delivery
Varnish, gel, mouthwash, toothpaste, tablets (not used)
F toothpaste
Worldwide decline in caries
Easy to use effective
Expensive risk of OG
F gels
Topical a few times a year
21% preventative
Effective choice useful in high risk
Compliance needed access to services
Tablets drops
40-50% caries reduction
Care when prescribing to minimise OD
Effective
Risk of OD and compliance needed
Mouthwash
26% preventative
Effective even if using TP and F water
Young kids can’t rinse compliance risk OD is consumed
F varnish
Used in high risk 2-4 per year 26,000 ppm At dentist or in community Choice and effective Hard to reach those needing it compliance
F salt
Delivers same protection as F water but general health advice contradicts use 2500ppm adults Used in 15 countries Effective choice Conflicts with health advice
Optimal F dose
1ppm or 1mg/L
OD dose
> 5mg/kg = death
Water F def
The controlled addition of F into a public water supply in order to increase the F concentration to a level that effectively prevents dental decay.
Evidence for F water
Inc proportion of children with no decay by 15%
Children in F areas have on avg 2.25 teeth affected by decay
Reduced inequalities between social classes
Aesthetic fluorosis 12.5% (3% fluorosis in f areas)
No association with bone fracture or cancer incidence
CWF in adults
27% preventative
