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Adding Casein Phosphopeptide-amorphous Calcium Phosphate to Sports Drinks to Eliminate In Vitro Erosion

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Purpose: Enamel erosion can occur with frequent consumption of sports drinks. The purpose of this study was to determine a minimal concentration of casein phosphopeptidestabilized amorphous calcium phosphate (CPP-ACP) which when added to a sports drink would eliminate such erosion in vitro.

Methods: Human enamel specimens were immersed in: (1) the sports drink Powerade; (2) Powerade plus 4 concentrations of CPP-ACP (0.063%, 0.09%, 0.125%, 0.25%); or (3) double deionized water. Windows of test and control enamel were profiled, and the enamel surface characteristics were examined under scanning electron microscopy (SEM).

Results: The pH of test solutions increased and the titratable acidity decreased with increasing CPP-ACP concentrations. Erosive step lesions occurred in specimens immersed in Powerade (mean depth=38.70kA┬▒5.60), which were eliminated by the addition of CPP-ACP to Powerade at all test concentrations except 0.063% CPP-ACP. Microscopic surface irregularities on test enamel were observed, apparent as adherent granules or globules. These may represent redeposited mineral phases following mobilization of calcium and phosphate from CPP-ACP. Tasters in a taste panel could not distinguish Powerade from Powerade plus 0.125% CPP-ACP.

Conclusions: Adding casein phosphopeptide-stabilized amorphous calcium phosphate to the sports drink Powerade significantly reduced the beverage's erosivity without affecting the product's taste.
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Keywords: CASEIN PHOSPHOPEPTIDE; ENAMEL; EROSION; SPORTS DRINK

Document Type: Research Article

Publication date: January 1, 2005

More about this publication?
  • Pediatric Dentistry is the official publication of the American Academy of Pediatric Dentistry, the American Board of Pediatric Dentistry and the College of Diplomates of the American Board of Pediatric Dentistry. It is published bi-monthly and is internationally recognized as the leading journal in the area of pediatric dentistry. The journal promotes the practice, education and research specifically related to the specialty of pediatric dentistry. This peer-reviewed journal features scientific articles, case reports and abstracts of current pediatric dental research.
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