The whiteness of teeth comes from enamel, the hard, outer layer of your teeth. Healthy enamel is like strong bone and protects the inner layers of your teeth. Enamel is naturally white, though the shade can vary slightly from person to person. However, many factors can affect the color of your teeth, including genetics, diet, and age.
While some people may have naturally whiter teeth than others, it's important to remember that the appearance of white teeth doesn't always indicate healthy teeth. The color of your teeth is influenced by many factors, and a healthy tooth can be yellow or even slightly brown. It's more important to focus on maintaining good oral hygiene practices, such as regular brushing, flossing, and dental checkups, to keep your teeth healthy and strong.