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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Connectors of PFM bridges need to be at least how many mm in height?

  1. 2 mm

  2. 3 mm

  3. 4 mm

  4. 5 mm

The correct answer is: 3 mm

This is because the height of a connector is important in maintaining proper function and stability of a PFM (Porcelain Fused to Metal) bridge. Connectors that are too short may not provide enough support, causing the bridge to fracture or fail. Conversely, connectors that are too long can put excess stress on the underlying teeth and cause damage or breakage. All of the other options (A, C, and D) are incorrect because they do not meet the minimum height requirement for proper function and stability of a PFM bridge.