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The Stephan curve relates to a graph described by 'Stephan'. At Time = 0 the baseline pH of plaque is taken (approximately pH7) . A sugary intake is consumed and the pH drops to around pH2-3. This is below the 'critical pH' of enamel (pH5.4). The critical pH is the pH below which enamel will begin to dissolve. Gradually over the following 30 minutes the pH of the mouth begins to return to neutrality and the dissolving of enamel ceases and the products of saliva can begin to remineralize any dissolved enamel. If sugar is frequently consumer throughtout the day then the dissolving action of bacterial acids will probably lead to tooth decay. The principle of Stephan Curves is to assess the cariogenicity of different foods. It awards the "Toothfriendly Logo" to those it considers not to cause caries or erosion.
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The origins Blood lust the cravings the ripper the asylum the compelled
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