Wisdom teeth usually emerge from the gums between the ages of 17 and 24. They are the last teeth to push through the gums. Some people never develop wisdom teeth. Wisdom teeth don’t usually cause any trouble and don’t need to be removed, however if there isn’t enough space for them to grow up at the back of your mouth, they will become impacted, and they will also cause severe painful swelling or infection. Impacted teeth need to be surgically removed in order to relieve the symptoms.