3 - Dental Caries etiology and pathogenesiss Flashcards
What is dental caries
It is a pathoglogical process caused by the cariogenic microorganisms in dental plaque
The 3 main etiological factors for caries is?
Hard dental tissue resistance
Dental plaque
Carbohydrate intake
Name the 5 ways saliva can influence the caries frequency
1 - mechanical cleaning
2 - enamel solubility decreases with calcium phosphor and fluoride supply to plaque
3 - acid buffering and neutralization
4 - direct antibacterial activity
5 - reduction of bacterial adhesion to DHT
Demineralization occurs in case of ( 5 steps)
Low molecular weight carbohydrates intake
Saliva Ph below 5,5
Poor oral hygiene, plaque with cariogenic potential
Lack of calcium phosphor and fluoride in saliva
Disturbance in saliva buffering system
Remineralization occurs in case of
No low weight carbohydrate intake Ph above 5,5 Saliva abundant in calcium phosphor and fluoride Good oral hygiene Preserved saliva buffering system
Theories of dental caries development
Acidogenic
Proteolytic
Proteolytic chelation
Contemporary ionic conception
Caries pathophyiology involves how many stages
4 stages
Name the subsurface development of enamel caries
Translucent zone
Dark zone
Body of lesion
Surface zone
Chronic caries layers
Destruction and cavitation Infected dentin Demineralized dentin Sclerotic dentin Reparative dentin
Acute caries
Destruction and cavitation
Infected dentin
Demineralized dentin