Abstract
Pop-drinks are promoted aggressively for consumption and profits. Most are mixtures of phosphoric acid with (CO2) gas, sugars and flavorings. Sugar-free drinks remain acid even when flavored by synthetic sweeteners. Most have acidities (pH below 5.5) which decalcify teeth, after ingestion. Pop-drinks cause erosion decalcification without bacterial action. Caries starts as decalcification with consequent cavitation by bacterial invasion. Saliva neutralizes dietary acids within 30 minutes. Repeated sips of colas keep mouth and oral biofilm acidity low and long enough to start decalcification. Evidence of decalcification from pop-drinks are exiguous; this appraisal cites research that implicates pop-drinks, specifically colas and guarana, in causing decalcification and by extrapolation, also consequent dental erosion and tooth decay.
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