INBDE (Integrated National Board Dental Examination) Practice Exam

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What are the top 3 places to break your mandible?

  1. Angle>Condylar>Symphysis

  2. Condylar>Angle> Symphysis

  3. Symphysis>Condylar>Angle

  4. Condylar>Symphysis>Angle

The correct answer is: Condylar>Angle> Symphysis

The correct answer is B: Condylar>Angle>Symphysis. When considering the top 3 places to break the mandible, it is essential to understand the distribution of forces in the jaw. The condylar region, located at the articulation with the temporal bone, is particularly vulnerable to fractures due to its relatively weak cortical bone and the direction of forces often experienced during trauma. Thus, condylar fractures are quite common in mandibular injuries. The angle of the mandible is also a frequent site for fractures. This area experiences forces due to direct blows or traumatic impacts to the side of the jaw, making it susceptible to injury. Lastly, the symphysis, which is the midline junction of the two halves of the mandible, is another common site for fractures. Trauma to this area can result from frontal impacts or direct trauma to the chin. Therefore, based on the vulnerability of these regions to different types of forces, the correct order for the top 3 places to break the mandible is Condylar>Angle>Symphysis.

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