INBDE Practice Exam 2025 – Complete Study Guide

Question: 1 / 1180

Which TMD condition is characterized by a clicking sound?

Disc displacement without reduction

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.

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Ankylosis

Arthritis

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