Green Tea Extract Reduces the Erosive Dentine Wear Caused by Energy Drinks In Vitro.

Abstract

PURPOSE\nTo investigate the effect of energy drinks supplementation with green tea extract on the erosive dentine wear.\n\n\nMATERIALS AND METHODS\nSix groups of bovine dentine samples (n = 15) were subjected to four cycles erosive attacks (10 min, 25 °C) and remineralisation (artificial saliva, 60 min, 37°C) using the following formulas: tap water; green tea extract; Red Bull; Red Bull supplemented with green tea extract; Red Bull Light; Red Bull Light supplemented with green tea extract. The erosive dentine wear - ie, the irreversible dentine loss - was measured using a stylus profilometer (µm, accuracy = 40 nm).\n\n\nRESULTS\nMedian and interquartile range (IQR) of erosive dentine wear for the tested energy drinks before and after the supplementation with green tea extract were calculated as follows: Red Bull (before: 3.3 µm (1.0)); after: 1.2 µm (0.6)); Red Bull Light (before: 3.3 µm (0.9)); after: 2.0 µm (0.4)). The difference between the groups before and after the supplementation was statistically significant (P ˂0.05). The erosive dentine wear for the tap water group was calculated at 0.4 µm (0.6) and for the green tea extract group at -1.0 µm (1.3).\n\n\nCONCLUSIONS\nSupplementation of energy drinks with green tea extract could reduce the erosive dentine wear caused by energy drink in vitro.