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25 Cards in this Set
- Front
- Back
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From immediate food source |
Exogenous |
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From stored polysaccharides |
Endogenous |
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Metabolizes sugars to produce energy required for their growth and reproduction |
Cariogenic bacteria |
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Can metabolize any monosaccharide or disaccharide for energy |
Cariogenic bacteria |
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Enters the embden-meyerhof glycolytic pathway resulting in the formation of two 3 carbon pyrivate molecules from each 6 carbon glucose molecule |
Glucose |
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Can be converted to lactic acid |
Purivate |
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When the ph decreases to ______ the tooth environment is no longer saturated wih calcium and phosphate ions and the tooth starts to demineralize |
5.2 to 5.5 |
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Process of bacteria invading and destroying the Dentin |
Proteolysis |
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Earliest clinically detectable stage of caries in the enamel |
Incipient lesion |
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Characterization of incipient caries |
Opaque white appearance |
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Further mineral loss eventually causes sufficient structural weakening of the enamel the surface breaks down causing |
Frank cavitation |
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Although high in water and provide an excellent source of vitamin c they can potentially erode tooth enamel of consumed in large quantities over an extended period |
Citrus fruits |
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Has been shown to be even more cariogenic than plain sucrose |
Honey |
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Bacterial storage form of carbohydrate |
Glucan |
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Specifically requires sucrose for its production |
Glucan |
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People who are unable to metabolize fructose |
Hereditary fructose intolerance |
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Have a much lower caries incidence |
Hereditary fructose intolerance |
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Products containing ______ can be labeled reducing or not promoting tooth decay |
0.5 gram of a sugar and a sugar alcohol |
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The different techniques used to measure the plaque ph, the absolute values of the resting ph, minimum ph, and time to return to resting value |
Acidogenicity tests |
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Measure plaque acid responses and are only indirect tests of catiogenicity |
Acidogenicity tests |
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Act as neutral agents with buffering capacity and are absorbed well onto surfaces of tooth enamel |
Proteins |
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Plays a protective role by inhibiting adhesion of plaque to the tooth surface |
Milk |
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Helps repair early demineralization episodes by the redeposition of calcium and phosphate ions |
Stimulated saliva |
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Result in underhydoxylation of collagen |
Vitamin c deficiency |
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Appear first in the oral cavity |
Vitamin c deficiency |
