Do Wisdom Teeth Always Have to Be Extracted? Not always. Dr. Pete believes that if wisdom teeth are well aligned, they can be useful for chewing and may be left in place. However, in the majority of people, they do not completely erupt and remain “impacted” in the jaw. In those cases, he'll advise a wisdom tooth extraction when he sees any of the following: 1. The width of the jaws does not allow wisdom teeth to erupt in an alignment that is beneficial for chewing.