INBDE (Integrated National Board Dental Examination) Practice Exam

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What is the Bennett movement?

  1. Forward movement of the jaw

  2. Lateral movement of both condyles toward the working side 'TMJ looseness'

  3. A dental impression technique

  4. Vertical lifting of the jaw

The correct answer is: Lateral movement of both condyles toward the working side 'TMJ looseness'

The Bennett movement refers to the lateral movement of both condyles toward the working side in the temporomandibular joint (TMJ). During this movement, one condyle moves laterally while the other condyle moves medially, allowing for smooth and coordinated jaw function during lateral movements such as chewing. Understanding the Bennett movement is crucial in the field of dentistry for the diagnosis and treatment of temporomandibular joint disorders. The other options are incorrect: A. Forward movement of the jaw (protrusion) is a different type of jaw movement, not specifically related to the Bennett movement. C. A dental impression technique is unrelated to the Bennett movement in the context of TMJ physiology. D. Vertical lifting of the jaw (elevation) is also a different type of jaw movement and not directly related to the lateral movement described in the Bennett movement.

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