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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What is the recommended gingival third reduction for a porcelain veneer?

  1. 0.2mm

  2. 0.3mm

  3. 0.5mm

  4. 1mm

The correct answer is: 0.3mm

The recommended gingival third reduction for a porcelain veneer is 0.3mm. Option A (0.2mm) may not provide enough space for proper bonding and may result in a bulky restoration. Option C (0.5mm) and D (1mm) are both too much reduction and can lead to unnecessary tooth structure loss and potential damage to the tooth. Thus, option B is the optimal choice for achieving the best outcome for a porcelain veneer.