In our mouth are bacteria that feeds on sugars and starches in food particles stuck on our teeth. These bacteria produce acids that can dissolve the mineral content of the enamel, which is the hard outermost layer of a tooth. As a result, the tooth is weakened and becomes more vulnerable to cavities or tooth decay. This entire process is called demineralization of the tooth enamel. Prof Dr Seow Liang Lin (in the photo on the left) and Prof Dr Muneer Gohar Babar (in the photo on the right) share on how fluoride Is beneficial to counter demineralization of the enamel.