INBDE (Integrated National Board Dental Examination) Practice Exam

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Prepare for the INBDE with our comprehensive quiz that features interactive questions and detailed explanations. Hone your skills and gain confidence before the big test!

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.

Which orthognathic procedure is considered the least stable?

Maxilla down
Maxilla wider
Mandible forward
Mandible shorter

The correct answer is: Maxilla down

The least stable orthognathic procedure among the options provided is "Maxilla down." Lowering the maxilla can lead to increased relapse tendencies compared to the other procedures listed. When the maxilla is brought downward, the position of the upper teeth in relation to the lower teeth changes significantly, affecting occlusion and jaw function. The soft tissues around the maxilla may also adapt poorly to this new position, contributing to the reduced long-term stability of this particular orthognathic surgery. On the other hand, procedures like widening the maxilla, bringing the mandible forward, or making the mandible shorter tend to have more predictable and stable outcomes in terms of post-operative results and long-term stability.