Table 1: Composition and manufacturers of tested solutions.

SOLUTION

COMPOSITION

MANUFACTURER

Monster

Carbonated water, sucrose, glucose, citric acid, natural flavors, 0,4% taurine, sodium citrate, color added, 0.08% panax ginseng root extract, 0.04% L-carnitine L-tartarate, 0,03% caffeine, sorbic acid, benzoic acid, niacinamide, sodium chloride, Glycine max glucuronolactone, inositol, 0,002% guarana seed extract, pyridoxine hydrochloride, sucralose, riboflavin, maltodextrin, and cyanocobalamin.

Monster Beverage Corporation, Corona, California;

pH= 3.37

Redbull

Water, sucrose, glucose, acidity regulators (sodium citrates, magnesium carbonate), carbon dioxide, acidifier citric acid, 0.4% taurine, 0.03% caffeine, inositol, vitamins (niacin, pantothenic acid, B6, B12), flavoring, colors (caramel, riboflavin).

Red Bull GmbH, Am Brunnen, Austria;

pH=3.54

Distilled water

Chemically pure, free from soluble, clear, colourless and odourless

ASFER, São Paulo, Brasil; pH=7.0

Filtek Z350 XT

UDMA, TEGDMA, BisEMA, particle size: 5-20 nm, Zirconia/nanosilica.

3M ESPE, St. Paul, MN, USA