Term
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Definition
| hardest substance in body, influenced by systemic nutrition only before eruption, post-eruption(demineralization)-enamel decalcification, dental caries |
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Term
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Definition
| decreased plaque pH <5.5 within 30 min |
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Term
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Definition
| contain fermentable carbs that can be metabolized to decrease plaque pH >5.5 = enamel demineralization |
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Term
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Definition
| not metabolized by bacteria within 30 min, no drop in pH >5.5 |
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Term
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Definition
| prevent cariogenic activity when eaten before an acidogenic product |
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Term
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Definition
| differs from dental caries, loss of dental hard tissues caused by acid on teeth, xerostomia may worsen condition |
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Term
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Definition
| citrus fruits/juices, acidogenic sports drinks, carbonated beverages, chewable Vit C tablets, regurgitation of stomach contents |
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Term
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Definition
| demineralization of enamel by organic acids, periods of remineralization, multifactorial disease |
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Term
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Definition
| susceptible tooth, cariogenic bacteria, fermentable carbohydrate, plaque pH >5.5 |
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Term
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Definition
| 1. proteins in saliva absorb to tooth surface, 2. protein interactions with bacteria, 3. plaque formation, 4. organic acid formation (lactic/butyric/acetic/formic/propionic), 5. plaque pH drops to 5.2-5.5 |
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Term
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Definition
| major species involved in dental caries, physiological characteristics: adhere to tooth surface, produce abundant insoluble extracellular polysaccharides from sucrose, rapidly produce lactic acid from sugar substrates, tolerant to acid, produce intracellular polysaccharide stores |
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Term
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Definition
| galactose only sugar without caries promoting potential, foods w/ >15% sugar content by wt are high sugar foods w/ cariogenic properties |
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Term
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Definition
| low caries rate in populations w/ <27 g sugar/person/d, high caries rate in populations consuming > 40g sugar/person/d |
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Term
| food characteristics that affect cariogenicity |
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Definition
| fiber content, water content, retention around tooth surfaces, mieralizing minerals (Ca, P, Fl), usage patterns |
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Term
| Vipeholm prospective study |
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Definition
| conclusions: increased consumption of sugar = increased caries, increase is greater when retentive between meals, total amount of sugar eaten during meal not critical when consumed during a mealtime |
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Term
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Definition
| conclusion: caries incidence is realted to the form of carb consumed |
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Term
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Definition
| conclusion: xylitol has a caries inhibitory effect, sucrose produced more caries after 2 years than fructose |
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Term
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Definition
| cariostatic, interrupts protein synthesis in some strains of S. mutans, most effective when gum is 100% |
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Term
| caries protective factors |
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Definition
| cariostatic food factors (milk, cheese, phytates, sugar-free chewing gum), F and other minerals, water, saliva, oral hygeine |
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Term
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Definition
| protects against demineralization of calcified tissues, major US source is water, human mili low in F, dietary sources: tea, marine fish eaten with bones, |
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Term
| F preeruptive systemic effects |
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Definition
| incorporated into developing tooth's structure, makes apatite crystals less soluble, prenatal F not thought to benefit dentition, |
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Term
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Definition
| occurs primarily from F in fluid phase at tooth surface, consumed F is excreted through saliva, Mechanisms of Action: increased resistance to demineralization, remineralization of incipitent lesions, interference in formation of plaque bacteria, increased rate of posteruptive maturation, improved tooth morphology |
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Term
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Definition
| fluorosis if exposed as a child occurs ~10 ppm, fluoride supplements/toothpaste |
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