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In vitro evaluation of the effect of soft drinks on dental erosion

2017; CIG Media Group; Volume: 58; Issue: 3 Linguagem: Inglês

10.24873/j.rpemd.2017.10.024

1647-6700

Nadia Lopes, Maria Lurdes Pereira, Helena Salgado, Américo Afonso, Pedro Mesquita,

Dental materials and restorations

Objective: The relationship between the exposure to Coca-Cola ® , Fanta ® Orange and Lipton ® Ice Tea ® Lemon and dental erosion over time was assessed, as well as the possible existence of differences in their erosive potential.Methods: Ninety-six samples were randomly assigned in equal numbers to four groups: Coca-Cola ® , Fanta ® Orange, Lipton ® Ice Tea Lemon and a control group.Cycles of demineralization/remineralization were performed under stirring for 5 minutes, 3 times daily, for 30 days.Cuts of approximately 100-150 µm in thickness were made in the display window with a hard tissue microtome and the samples were analyzed under a light microscope.The depth of demineralization was measured.Data were analyzed using the Kruskal-Wallis and U-Mann-Whitney tests.A significance level of 0.05 was used.Results: All groups, except for the control, promoted wear on tooth surfaces.Coca-Cola ® , over time, caused the greatest loss of tooth structure.The differences between the three drinks at day 30 were not statistically significant (p>0.05). Conclusion:The consumption of the three drinks, over time, caused loss of tooth structure, incrementally.There were no differences in the erosive potential of the soft drinks studied after a 30-day exposure period.(