A typical adult human has 32 teeth. These include 8 incisors, 4 canines, 8 premolars, and 12 molars (including wisdom teeth). Children, however, start with 20 primary (baby) teeth that are later replaced by the adult set of 32 teeth as they grow. The number 32 is standard, though it may vary if wisdom teeth are removed or due to natural variation in some individuals.