Wisdom teeth often known as third molars are the last teeth to erupt. One usually gets them in late teens or early twenties. However, even instances of eruption in late adulthood are common. If they erupt smoothly and without any discomfort, then they can be considered as an asset. But the problem with third molars is that in many instances they are misaligned or blocked inside due to aberrant angulation or lack of space to erupt. If they are blocked or poorly aligned, they can cause recurring discomfort and damage the adjacent teeth. In such cases they need to be removed.