* Primary teeth: Most children have 20 primary teeth, which emerge in a specific order and begin to erupt around six months of age. These teeth are smaller and whiter than permanent teeth, and they typically fall out between the ages of six and 12.
* Permanent teeth: There are 32 permanent teeth in a full set, including four wisdom teeth. These teeth begin to emerge around the age of six, and the wisdom teeth typically erupt in the late teens or early twenties. Some people never develop wisdom teeth, while others may only develop one or two.