As you brush your teeth, have you ever wondered: how does fluoride strengthen teeth? Fluoride actually combines with the calcium and phosphate in your teeth to fight against cavities. This happens because of the fluoride found in your saliva from toothpaste or water sources.
That’s why we often use fluoride treatments to help strengthen your teeth against cavities and harmful bacteria. Watch the video below by the American Dental Association goes into more detail about the answer to this question.