8. Reduce the frequency of acidic food intake which includes fizzy drinks and fruit juices that contain phosphoric or citric acid. Tooth enamel and dentine are both made up of calcium deficient carbonated hydroxyapatite. Acid and/or chelators present in the food we consume penetrate through the plague, the pellicle and the protein/ lipid coating into the individual crystals. Hydrogen ions combine with carbonate and/ or phosphate, releasing all ions in the affected region, giving rise to direct surface etching/ erosion. Reducing the frequency of intake, minimises the duration to which enamel is exposed to acids, making it less susceptible to acid attack and allows the eroded tooth surface to remineralise. Ideally, confine these items exclusively to mealtime.