caries Flashcards
what is needed to cause caries?
- time
- fermentable carbohydrates
- tooth surface
- bacteria biofilm
what bacteria cause caries?
- streptococcus mutans
- lactobacilli
- streptococcus salivarius
- streptococcus sobrinus
- rothia denticariosa
- bifidobacterium
- actinomycete
what are the properties of streptococcus?
- gram + facultative anaerobes
- acidogenic
- acidoduric
- early plaque
what are the properties of lactobacilli ?
- gram + facultative anaerobe
- acidogenic
- acidoduric
- mature plaque
- increased bac with increased carb meaning increased carious lesions
what are the properties of actinomyces?
- gram + facultative anaerobes
- acidoduric
- sticky branched network commonly found in root caries- hard to remove
what is the process of metabolising sugar to form acids called?
fermentation
what does DMFT stand for?
decayed, missing, filled, teeth
what does DMFS stand for?
decayed, missing, filled, surfaces (128 total)
what is the purpose of DMFT/DMFS?
to understand someones caries history/risk
what is the prevalence of a disease?
the frequency of a disease within a population at a particular point in time
what is the incidence of a disease?
measures the number of newly diagnosed cases of a disease within a period of time
how do we know sugar causes caries?
sugar studies
what are the names of sugar studies?
vipeholm study
Turku study
Tristan de Cunha study
Hopewood House study
