Dental Caries 2 Flashcards
what are the essentials needed for dental caries
host (teeth)
Bacteria
Time
Substrate
what bac distinctively = more caries
strep mutans
what is a way of prevent caries
removal plaque by brushing and chemical prevention of plaque build up
what is a common substrate for caries
refined carbs and animal protein = if less less caries
what teeth have highest incidence of caries
molar teeth
what surfaces are most resistant to caries
buccal and lingual smooth surfaces
where organic acids from
from plaque micro-organisms
what do the organic acids do
decalcify enamel
how does organic acids come about and examples
in vivo expo plaque with sucrose and glucose = lactic and acetic acid
when does sucrose substrate have an effect on lactic acid production
30 minutes not immediately
what does initial mineral loss do
defects tooth surface sites plaque to pool
removal of carbonate and Mg from appetite
higher conc of carbonate and Mg toward ADJ
how does organic acid ‘diffuse’ thro
via irregularities when ionised subsequent protonation of Phosphate groups in appetite lattice
what is the sequelae of enamel cares
arrest of rmeinerlisation
cavitation
when does remineralisation happy
pre clinical lesions (pre white spot)
when does arrest happen
non caveatted white spot
brown spot
wha influences remineralisation/ arrest/ cavitation
diet fluoride dental intervention oral hygiene saliva
what individual is of high caries risk
socially deprived high caries siblings low knowledge of condition irreg attender availability of snacks low dental aspirations
how much fluoride avg in water
1 ppmF
what are the avg.’s of fluoride in toothpastes
1100-1500 ppmF
prescribed 2800-5000ppmF
what are some rinses with fluoride
daily - 250 ppmF (0.05%)
weekly - 1000pmF (0.2%)
how much fluoride in avg varnsh
22,600 ppmF (duraphat)
what does the majority of water fluoridation results show
reduces inequalities in dental health
fluorosis prevalence and publics perception
what is fluoride advice from birth to 3 years
twice daily brush
parent brush
us smear toothpaste not less than 1000 ppmF
what si the flurde advice from 3-6 years
brush last night nd other
supervised
pea sized 1000-1500 ppmF
spit out no rinse
