Fluoride

Question 1

what is ionized fluoride

Answer 1

negatively charged F-

Question 2

what is fluoride in calcified tissues called

Answer 2

fluoroapatite

Question 3

T/F: fluoride is not readily absorbed

Answer 3

False, 90% absorbed

Question 4

Is fluoride subject to GI control

Answer 4

No

Question 5

How is fluoride transported in the body

Answer 5

both in ionic (F-) and non-ionic (organically bound) forms; in extracellular fluid

Question 6

How is fluoride excreted

Answer 6

urine

Question 7

What are the 3 functions of fluoride

Answer 7

1. incorporation in
   apatite
2. mineralization of teeth
   and bone–>lowers
   bone resorption
3. Decreases dental
   caries

Question 8

Fluoride DRI

Answer 8

Males: 4 mg/day
Females: 3 mg/day

Question 9

What is the major source of fluoride

Answer 9

water fluoridation

Question 10

______ mg of F per liter/ppm is ideal

Answer 10

0.7-1.2mg

Question 11

What would affect he amount of fluoride in water

Answer 11

wells, home water treatment systems

Question 12

Food sources of fluoride

Answer 12

tea, sardines, chicken, tooth paste

Question 13

Does food provide a lot of fluoride

Answer 13

no; 0.3-0.6mg/day

Question 14

What are the signs of fluorosis (toxicity)

Answer 14

mottled teeth, calcification of tendons, increased density of bone mass

Question 15

What are risks of acute fluoride toxicity

Answer 15

acidosis, cardiac arrhythmias, death