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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Which perforation location has the best prognosis?

Coronal third of root
Apical third of root
Chamber floor
Middle third of root

The correct answer is: Apical third of root

The best perforation location for prognosis is the apical third of the root. This is because this area has the best chance for periodontal healing due to its good blood supply and ability to regenerate. The coronal third of the root is also a good location, but it may result in some degree of periodontal breakdown. The chamber floor is not a good location as it can lead to contamination and damage to the tooth pulp. The middle third of the root is also not a good location as it can lead to damage to the root surface and potential exposure of the root canal.