clinic/fluoride Flashcards
what level of surface disinfectants is used in dental offices?
intermediate
chemical sterilization
-273 F
20 mins
25 psi
spore test= geobacillus sterothermophilus
dry heart sterilization
340 F for 1 hour
320F for 2 hours
spore test- bacillus atrophaeus
steam sterilization
250 F
30 min
15-20 psi
spore test= geobacillus sterothermophilus
supra ging nutrient source
saliva
subging nutrient source
crevicular fluid and exudate
stannous fluoride stain
from reaction of the tin ion in the fluoride
demin for enamel
4.5-5.5
demin for cementum
6-6.7
fluoride moa
interferes with bacterial metabolism
compounds in fluoridated water
sodium fluoride
sodium silicofluoride
hydrofluorosilicic acid
sodium fluoride (NaF)
2% 9,050 pH 7.0 no reactions 4x year
sodium varnish
5% 22,600 pH 7.0 no reactions 3-6 months
acidulated phosphate (APF)
1.23% 12,300 pH 3.5 etches restorative materials 1-2 x year
stannous fluoride
8% 19,360 pH 2.1-2.3 brown staining and poss ging recession 1-2 x year