Negative control

Tap water

Ingredients:

Aqua, Sorbitol, Xylitol, Zinc Hydroxyapatite, Aroma, Pistacia Lentiscus (Mastic) Gum Oil, Lactobacillus, Bifidobacterium, Sodium Hyaluronate, Ascorbic Acid, Hamamelis Virginiana Leaf Extract, Spirulina Platensis Extract, Calendula Officinalis Flower Extract, Tocopheryl Acetate, Retinyl Palmitate, Eucalyptus Globulus Leaf Oil, PEG-40 Hydrogenated Castor Oil, Phenoxyethanol, Sodium Benzoate, Cocamidopropyl Betaine, Glycerin, Maltodextrin, Sodium Saccharin, Helianthus Annuus Seed Oil, Potassium Sorbate, BHT, Limonene, CI 16255.

Aqua, Xylitol, PVP, PEG-40 Hydrogenated Castor Oil, Hippophae Rhamnoides Extract, Chamomilla Recutita Extract, Sodium Benzoate, Sodium Lauryl Sulfate, Aroma, Propylene Glycol, Olaflur, Potassium Sorbate, Sodium Phosphate, Disodium Phosphate, Menthol, Bisabolol, Menthyl Lactate, PPG-26 Buteth-26, Sodium Saccharin, Sodium Methylparaben, Citric Acid, Limonene.

The participants will be asked to hold 20 ml of "coca-cola" in their mouth for 30 seconds.

The participants will be asked to hold 20 ml of "coca-cola" in their mouth for 30 seconds. They will be asked to spit saliva into a sterile vial at baseline (before Coca-cola consumption), immediately after Coca-Cola consumption and further every 5 minutes until the pH reaches baseline levels. Salivary pH levels will be measured with a digital pH meter. The time required for pH recovery will be registered.

The participants will be asked to hold 20 ml of "coca-cola" in their mouth for 30 seconds. Then, participants will be asked to rinse their mouths with tap water (control) or each of the tested oral foams according to the manufacturer's recommendations. They will be asked to spit saliva into a sterile vial at baseline (before Coca-cola consumption), immediately after Coca-Cola consumption, immediately after oral foams/tap water rinse and further every 5 minutes until the pH reaches baseline levels. The pH levels will be measured with a digital pH meter. The time required for pH recovery will be registered.

The participants will be asked to hold 20 ml of "coca-cola" in their mouth for 30 seconds. They will be asked to spit saliva into a sterile vial at baseline (before Coca-cola consumption), immediately after Coca-Cola consumption and further every 5 minutes until the pH reaches baseline levels. Salivary pH levels will be measured with a digital pH meter. The minimal pH value will be registered.

The participants will be asked to hold 20 ml of "coca-cola" in their mouth for 30 seconds. Then, participants will be asked to rinse their mouths with tap water (control) or each of the tested oral foams according to the manufacturer's recommendations. They will be asked to spit saliva into a sterile vial at baseline (before Coca-cola consumption), immediately after Coca-Cola consumption, immediately after oral foams/tap water rinse and further every 5 minutes until the pH reaches baseline levels. The pH levels will be measured with a digital pH meter. The minimal pH value will be registered.