INBDE (Integrated National Board Dental Examination) Practice Exam

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What is the most common cause of ankylosis between the condyle and the skull?

  1. Infection

  2. Trauma

  3. Arthritis

  4. Degenerative joint disease

The correct answer is: Trauma

Ankylosis refers to the fusion of bones or joints. In this context, the question is referring to the fusion between the condyle (rounded end of a bone) and the skull. While all of the options listed can potentially contribute to ankylosis, trauma is the most common cause in this specific location. Infection, arthritis, and degenerative joint disease can also lead to ankylosis, but they are not as prevalent in this particular area.