Morphological Features of the Mandible in Patients with Surgically Operated Skeletal Mandibular Protrusion.

概要

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Morphological features of the mandible were evaluated by cephalometric analysis of 44 patients with surgically operated skeletal mandibular protrusion. The results were as follows:<BR>1. The mandibular condyle was narrow and long and the condyle was high in the mandibular protrusion. Mandible and mandibular body were long, mandibular notch was deep, gonial angle was wide and the ramus inclined forward.<BR>2. The small anteroposterior diameter of the mandibular condyle were related to the long mandibular length, the long mandibular body length, the high ramus height and the forward inclined ramus. High condylar height was related to the long mandibular length, the short anteroposterior diameter of the ramus, the wide gonial angle and the forward inclined ramus.<BR>3. From these findings, it might be suggested that the mandible in patients with surgically operated skeletal mandibular protrusion had the characteristics of underdevelopment.
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