How many teeth does an adult human have?

✅ Correct Answer: C — 32

An adult human has 32 permanent teeth in total. These are: 8 Incisors (for cutting food), 4 Canines (for tearing food), 8 Premolars (for grinding), 8 Molars (for grinding), and 4 Wisdom teeth (3rd molars, which are the last to emerge). Children have 20 milk teeth (deciduous teeth) which are replaced by permanent teeth.

❌ Why other options are wrong:

• A. 28 teeth — 28 is the count without wisdom teeth. Many adults may have 28 if wisdom teeth don't erupt, but the complete set is 32.

• B. 30 teeth — 30 is not a standard dental count; no known normal condition results in exactly 30 adult teeth.

• D. 34 teeth — 34 is more than the normal count; humans don't naturally develop 34 teeth.

📝 Important Note: Total adult teeth = 32 (including 4 wisdom teeth). Children's milk teeth = 20. Teeth types: Incisors (cut), Canines (tear), Premolars & Molars (grind). Dental formula for adult: 2I + 1C + 2P + 3M per quadrant = 8 per quadrant x 4 = 32. SSC CGL biology fact.