Why Your Teeth Aren’t as White as They Used to Be (and What Actually Works)

Left and right comparison of the same smile, with more yellow-toned teeth on the left and whiter teeth on the right.

A smile can change gradually enough that you barely notice it happening. Coffee becomes a daily habit, red wine makes regular appearances, and foods with strong pigments leave a little behind each time. Then one day, your teeth look noticeably duller in photos than they did a few years ago. That doesn’t automatically mean something …Read the full article