What are Wisdom teeth and How to diagnose the pain ? Wisdom Teeth are the last molars also called 3rd molars. They start to appear after the age of 18 and their eruption can even last for more than 7 years. There are few patients over the age of 40 who might have experienced wisdom teeth growing in the back of their mouth, so age is not a final factor. Wisdom Teeth have few particular characteristics that are really important for you to know. Firstly they don't help us chewin