The average mouth is made to hold only 28 teeth. It can be painful when 32 teeth try to fit into that mouth. These four other teeth are your Third Molars, also known as "wisdom teeth." Wisdom teeth are the last teeth to erupt within the mouth. When they align properly and gum tissue is healthy, wisdom teeth do not have to be removed.
Unfortunately, this does not generally happen. The extraction of wisdom teeth is necessary when they are prevented from properly erupting within the mouth. They may grow sideways, partially emerge from the gum and even remain trapped beneath the gum and bone. Impacted teeth can take many positions in the bone as they attempt to find a pathway that will allow them to erupt successfully.
In most cases, the removal of wisdom teeth is performed under local anesthesia, laughing gas (nitrous oxide/oxygen analgesia) and/or general anesthesia. Once the teeth are removed, the gum is sutured (if needed).