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 TMD condition is characterized by a clicking sound?

Disc displacement without reduction
Disc displacement with reduction
Ankylosis
Arthritis

The correct answer is: Disc displacement with reduction

Disc displacement with reduction is characterized by a clicking sound because the jaw joint is able to fully return to its normal position after opening. This causes the disc to slip back into place, creating a clicking or popping sound. Option A, disc displacement without reduction, is incorrect because this condition does not typically involve a clicking sound and the disc does not return to its normal position. Option C, ankylosis, is incorrect because this is a condition where the jaw joint becomes fused, resulting in limited or no movement of the jaw. There would not be a clicking sound in this case. Option D, arthritis, is incorrect because this refers to inflammation and breakdown of the joint, which can cause pain and stiffness but not necessarily a clicking sound.