INBDE (Integrated National Board Dental Examination) Practice Exam

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Ace your INBDE with our comprehensive practice exam. Featuring detailed explanations, interactive flashcards, and a wide array of multiple-choice questions designed to mirror the real test. Get ready to surpass your expectations!

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The first permanent tooth to form and calcify is what at which time?

Mandibular first molar at 4 months in utero
Maxillary first molar at birth
Mandibular second molar at 4 months after birth
Maxillary first molar at 4 months in utero

The correct answer is: Mandibular first molar at 4 months in utero

The correct answer is the mandibular first molar at 4 months in utero. This tooth is the first permanent tooth to form and calcify. The formation of primary teeth begins during the embryonic stage, and the primary dentition is completed around the age of 2 to 3 years. The mandibular first molar is one of the earliest permanent teeth to start its development during the prenatal period. The other options are not correct because they do not accurately reflect the timing of the formation of the first permanent tooth. The Maxillary first molar at birth, Mandibular second molar at 4 months after birth, and Maxillary first molar at 4 months in utero are not the first permanent teeth to form and calcify.