Calcium glycerophosphate supplemented to soft drinks reduces bovine enamel erosion

OBJECTIVE This in vitro study evaluated the effect of calcium glycerophosphate (CaGP) supplemented to soft drinks on bovine enamel erosion. MATERIAL AND METHODS Four pH-cycles were performed, alternating demineralization by the beverage and remineralization in artificial saliva. RESULTS Mean wear (± SD, µm) was 7.91 ± 1.13, 7.39 ± 1.01, 7.50 ± 0.91 and 5.21 ± 1.08 for Coca-Cola® without CaGP or containing CaGP at 0.1, 1.0 or 2.0 mM, respectively, while no wear was detected for CaGP at 5.0 and 10.0 mM. Corresponding figures for Sprite Zero® without CaGP or containing CaGP at 0.1, 1.0, 2.0, 5.0 or 10.0 mM were 8.04 ± 1.30, 7.84 ± 0.71, 7.47 ± 0.80, 4.96 ± 0.81, 3.99 ± 0.10 and 1.87 ± 0.12, respectively. CONCLUSION Supplementation of both beverages with CaGP seems to be an alternative to reduce their erosive potential.