INBDE (Integrated National Board Dental Examination) Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

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!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What type of movement occurs in the lower joint space of the TMJ?

Hinge rotation
Gliding movement
Lateral excursion
Protrusion and retraction

The correct answer is: Hinge rotation

In the lower joint space of the temporomandibular joint (TMJ), hinge rotation occurs. This movement involves a simple rotational motion around a fixed point, allowing for the opening and closing of the jaw in a hinge-like fashion. This movement primarily takes place in the lower compartment of the TMJ. Option B, gliding movement, typically occurs in the upper joint space of the TMJ, known as the articular disc, where the condyle can glide smoothly forward and backward during jaw movements. Option C, lateral excursion, refers to the sideways movement of the mandible towards the right or left side. Option D, protrusion and retraction, involve the forward and backward movement of the mandible respectively.