DPH4 caries Flashcards
wat is epidemiology
study of health and disease in populations and how these states are influenced by heredity, biology, physical enviro, social enviro and ways of living
what are some means of maintaining andimprovin oral function an dconfort
nutrition
speech communication
self esteem
family/relationships
wat is measured in epidemiology
counts - deaths
prevalence/ rates
incidence
indices
how many deaths year scotland
approx 57000
what are the properties of n ideal index
validity reliability clarity quantifiably sensitivity acceptability
what is DMFT the measure of
obvious caries experience
what are the DMF components
missing - exfoliated/extrcated
decayed - arrested, dentine, pulp
restored simple or complex
sealants
what are the various stages of tooth decay
v early
initial decay
moderate decay - clinically detectable in enamel
extensive dentine - clinically ddetetcatbale in dentine/ pulp
what is radome probability sampling essential for
each individual in study pop has known, non zero chance being included
selection bias avoided
statistically theory and generalisability
what does random probability sampling require
a recognised sample frame
random sampling techniques
adequate sample size
high response rate
what are the types of interval data
skewness and kurtosis
what is skewness
-ve
– lentil longer, mass hist is conc on right of figure
+ve
– right tail longer, mass hist con on left
what is kurtosis
high kurtosis =sharper peak, longer, fatter tails
what si the list of DMFT scores
huge positive skew
central limit theorem
what are some other caries indices
def DMFS SIC ICDAS root caries index
