Pediatric Dentistry · single question

Which are the most commonly missing (congenitally absent) teeth overall?

  1. Third molars, then maxillary lateral incisors
  2. Maxillary lateral incisors and mandibular second premolars only
  3. Maxillary central incisors
  4. Mandibular first molars
Show answer and explanation

Correct answer: A. Third molars, then maxillary lateral incisors

  • A. Correct. Third molars are by far the most commonly congenitally missing teeth; excluding them, mandibular second premolars and maxillary lateral incisors are most common.
  • B. This pair is the most common AFTER excluding third molars — but third molars are the single most common overall.
  • C. Maxillary central incisors are rarely congenitally absent.
  • D. Mandibular first molars are very rarely congenitally missing.

Note: Including third molars: third molars are #1. Excluding them: mandibular second premolar and maxillary lateral incisor lead.

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