Seems like just about everyone has his or her wisdom teeth removed nowadays. But why do we have them if they just need to be taken out? Wisdom teeth are essentially our personal relics of the past. Prehistoric man needed these large back molars to chew raw vegetation and tough meats. However, the human diet has changed significantly since then, which has made wisdom teeth obsolete. That’s why wisdom tooth extraction is so common. Your dentist in Scarborough at White Willow Family & Cosmetic Dentistry can perform this service for you.