Multiple choice general knowledge science & technology How many teeth does an average human adult have? 32 33 36 31 Reveal answer Fill a bubble to check yourself A Correct answer Explanation An average human adult has 32 permanent teeth, including 8 incisors, 4 canines, 8 premolars, and 12 molars (including 4 wisdom teeth). Children have 20 primary teeth that are eventually replaced by permanent teeth.