The Correct answer is A
The lateral pterygoid muscles attached to the condyles are not able to properly perform the function of mandibular protrusion/ excursion. Since the condyles are fractured bilaterally the there would not be a deviation to one side over the other. When this type of fracture occurs there is a collapse of the posterior segment allowing the posterior teeth to come into contact but also creating an anterior open bite in the process. There would not be any mental nerve anesthesia because as noted there have been no other injuries and the mandibular/ mental nerve enters the mandible at a level inferior to the condylar necks.
Ref: Kruger, Oral and Maxillofacial Surgery, 6th edition, p378-385.
0 comments:
Post a Comment
Please Leave your take on these notes and mcqs. Your feedback is much appreciated.