An adult typically has 32 teeth in total. This full set includes:

• 8 incisors (front teeth for cutting)
• 4 canines (pointed teeth for tearing)
• 8 premolars (between canines and molars for crushing and tearing)
• 12 molars (including 4 wisdom teeth, for grinding food)

These teeth are evenly split with 16 in the upper jaw and 16 in the lower jaw

. However, many adults have their wisdom teeth (third molars) removed or may not develop all four wisdom teeth, which reduces the total number to 28 teeth. Wisdom teeth typically emerge between ages 17 and 25 and are often extracted due to crowding or other dental issues

. In summary, a healthy adult mouth usually contains 32 teeth, but 28 teeth is also common if wisdom teeth are absent or removed.