INBDE (Integrated National Board Dental Examination) Practice Exam

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Study for the Integrated National Board Dental Examination with engaging quizzes and detailed multiple-choice questions. Each question comes with hints and explanations to ensure you grasp essential concepts. Prepare effectively for your dental career!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Which premolar is considered the smallest?

Maxillary first premolar
Maxillary second premolar
Mandibular 1st premolar
Mandibular second premolar

The correct answer is: Mandibular 1st premolar

The mandibular first premolar is considered the smallest premolar in the dental arch. This tooth typically has a more slender and constricted occlusal outline compared to the other premolars. The maxillary first premolar (Choice A) is larger in size with a more prominent buccal cusp, making it bigger than the mandibular first premolar. The maxillary second premolar (Choice B) is also larger than the mandibular first premolar and usually has two cusps (buccal and lingual), further distinguishing it in size. The mandibular second premolar (Choice D) is larger and has a more prominent occlusal surface compared to the mandibular first premolar.