Contrary to popular belief, wisdom teeth do not always need to be extracted. If they are placed and aligned correctly just like the rest of your teeth, they don’t need to be removed. The problem is that most wisdom teeth that erupt are misaligned and impacted, and thereby cause pain and discomfort to adjacent molars.
Scientists attribute this effect to evolution. Modern-day humans have smaller jaws than our prehistoric ancestors, an anatomical change that leaves less room for third molars to properly make it to the surface. Learn to recognize the signs of troublesome impacted wisdom teeth before you have them removed by a dentist.