While scientists think that wisdom teeth used to be necessary for early humans to eat nuts, roots, and tough meats, nowadays these third molars don’t serve any real purpose in our mouths. In fact, they often do more harm than good! That’s why the vast majority of adults – about 85%, according to the American Association of Oral and Maxillofacial Surgeons – will need wisdom teeth removal at some point in their lives. If you or a loved one still has wisdom teeth, here are 5 signs they’ll need to be extracted soon.