A study in Japan has shown how ionized alkaline water can increase the pH level of enamel surface after consumption of acidic beverages, suggesting its practical use in preventing dental erosion.
The critical pH of enamel decalcification is considered to be approximately 5.5 to 5.7. Acidic beverages will increase the likelihood of dental erosion or enamel decalcification. So, researchers suggest drinking ionized alkaline water as a potential approach for preventing dental erosion by bringing the pH levels back to near neutral levels in no time.
To test the effect of ionized alkaline water, subjects took acidic beverages followed by ionized alkaline water (9pH) and tap water (6.7pH). With IAW, it took about 15 to 20 seconds for enamel to reach pH of 7. While with tap water, it took about 9 to 12 minutes to reach neutral pH.
After the conducted studies, Researchers stated “Ionized Alkaline water is shown to be useful in preventing dental erosion caused by acidic beverages.”