Baking soda and lemon juice combinations have become a popular home remedy. Some people claim that baking soda and lemon juice can improve the skin, treat heartburn, and whiten teeth.

Xylitol is a lower-calorie sugar substitute with a low glycemic index. Some research suggests that it may also improve dental health, prevent ear infections, and possess antioxidant properties.

There are several possible causes for white spots on teeth, including dental fluorosis, enamel hypoplasia, poor dental hygiene, and eating too many acidic or sugary foods.