Tooth enamel needs to be strengthened and protected. Fluoride is essential for keeping teeth healthy and strong, as it builds enamel’s resistance to acids and bacteria, and reverses early tooth decay. Fluoride is found in tap water, some foods, and in dental care products. Anyone can benefit from fluoride. However, Dr. Alin Alkass suggests that those who are between 6 months and 16 years of age, those who suffer from dry mouth, those who are elderly, and those who drink only bottled water visit a dentist to find out whether they need additional fluoride treatments.