Because the fluorine is important for dental health and for the caries prevention?
Enamel is the outer covering of the teeth: it is harder than bone and is made of calcium and phosphate; saliva is also loaded with calcium and phosphate and "wets" the teeth to keep them strong.
When we eat, the bacteria that cause tooth decay. begin to feast on the carbohydrates in foods by producing acids that attack enamel: this causes the Calcium and phosphate are removed from tooth enamel, leaving them more Vulnerable to tooth decay.
However saliva disrupts the attack by coating the teeth and adding additional calcium and phosphate To replace what had been taken away.
Our saliva contains fluoride che gets from the water we drink or the toothpaste we use: From saliva, fluoride penetrates the enamel and combines with calcium and phosphate
When saliva contains fluoride that comes from sources such as toothpaste or water, teeth are able to take it up: Once in the enamel, fluoride combines with calcium and phosphate to create the most powerful defense system the teeth have at their disposal to Preventing caries formation: fluoroapatite.
That is why it is very important Use a toothpaste that contains fluoride to protect teeth!
[Medical Director: Dr. Mauro Savio, Member of the Dentists Register Provincial Order of Surgeons and Dentists of Milan n. 4168].