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!

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!

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External root resorption is due to damage to which layer in the periodontal ligament (PDL)?

Odontoblastic
Fibroblastic
Cementoblastic
Ectodermal

The correct answer is: Cementoblastic

External root resorption occurs when there is damage to the cementoblastic layer of the periodontal ligament (PDL). Option A (Odontoblastic) is incorrect because it refers to the cells responsible for producing tooth enamel, not the PDL. Option B (Fibroblastic) is incorrect because fibroblasts are responsible for producing the connective tissue in PDL, not the PDL itself. Option D (Ectodermal) is incorrect because this layer is not involved in the PDL.