Fluoride Flashcards
what is fluorapatie composed of
fluoride, phosphorus and hydrogen
how is fluoride absorbed in the body when ingested
through the stomach and small intestines
pre eruptive stage (mineralization) is during
tooth formation
fluoride is deposited during enamel formation
during what eruptive stage is the most fluoride acquired
pre eruptive (maturation) stage
maturation pre eruptive stage is when fluoride is
deposited after mineralization is complete. prior to eruption
post eruptive stage of fluoride absorption occurs when?
after eruption and continues through life
how does fluoride protect the teeth
is alters the structure of developing enamel - creating acid resistance
dissolving of enamel is AKA
Demineralization
what happens when pH drops below 5.5 within oral cavity?
the biofilm is less saturated by minerals and enamel begins to dissolve to neutralize it
3 actions of fluoride
- inhibits demineralization
- enhances remineralization
- inhibits bacteria from converting carbs into acids (effects the amylase enzyme)
what type of enamel best absorbs fluoride
hypomineralized enamel
it’s already lacking nutrients
what is the pH of plaque
5
what are the two types of sources of fluoride
topical (toothpaste etc)
systemic (food/water)
what % of fluoride is stored in bones
95%
__ppm of fluoride is in water in canada
1 ppm