👉 Fluoridisation is a process that involves adding fluoride to water to prevent tooth decay. This can be done by using a chemical substance called fluoride, which has the ability to dissolve in water and create a barrier between the teeth and the bacteria that cause tooth decay. The goal of fluoridisation is to reduce the levels of fluoride in water by increasing its concentration. Fluoride is added to water through various sources such as pipes, taps, and faucets, or it can be used