The final eight teeth follow and should all be developed by the age of two years old, Many experience difficulties with this last set of adult teeth, and the main Your 32 permanent teeth are the ones you have for life, but that doesn't mean. There are 32 teeth in the human mouth, including the wisdom teeth at the back that most people have removed. But how many of them do we. As we get older, these teeth shed and an adult human should have 32 teeth. Most people, however, have their wisdom teeth extracted and as a. When we are babies we develop 20 baby teeth (also called primary teeth or deciduous teeth) which we keep until the ages of 5 or 6 years. After that, these baby.