The third molars of the teeth are commonly known as the wisdom teeth. These teeth are the last teeth to erupt in the mouth. It is common for these teeth to be removed before they have a chance to erupt on their own. Wisdom teeth are extracted when there is not enough room in the mouth to accommodate them. They are also removed as a preventative measure to avoid the pain, infection, or disease that can occur while the teeth are erupting. Wisdom teeth are also removed when they present a health threat to surrounding teeth because they are impacted. A wisdom tooth is considered impacted when it is growing sideways, is only partially erupted or is trapped beneath the gum line. When a Wisdom tooth is impacted, the only treatment option is extraction. There can be serious health consequences if an impacted wisdom tooth is not removed. A poorly-aliened impacted wisdom tooth may damage the roots of surrounding teeth. A partially-erupted wisdom tooth may leave a hole where bacteria can enter the gum and cause an infection A cyst may develop around the impacted tooth causing damage to the surrounding bone structure.