The course of the XXXX in @entity4802 : virtual dissection using three-dimensional computed tomography image analysis.

@entity129 @entity1 @entity4802 @entity8213 @entity128
Computer-assisted medical imaging was used to locate the mandibular foramen and the portion of the @entity129 canal at the level of the angle of the mandible in 19 hemimandibles of @entity1 with @entity4802 . The distance from each of these two points to the borders of the mandible was measured. The ratios of these distances to the height, anteroposterior, and buccolingual extents of the mandibular ramus were calculated. These ratios were compared among affected hemimandibles (Pruzansky classification I, n = 4; and Pruzansky classification II, n = 10), unaffected hemimandibles (n = 9), and the hemimandibles of @entity1 with @entity8213 (n = 7). Comparison of mean distance ratios showed that the mandibular foramen was located significantly more proximally in the affected cohort than in either the unaffected or @entity8213 control groups. The mandibular foramen was also located significantly closer to the buccal cortex of the mandible in the affected cohort when compared with unaffected @entity1 . The distance from the mandibular foramen to the anterior or posterior tables of the mandible divided by the total anteroposterior distance did not vary among the three groups studied. The distance ratios between the @entity129 canal at the level of the angle of the mandible and the mandibular borders also did not vary significantly among the groups studied. An @entity129 canal could not be identified in any @entity1 with Pruzansky grade III mandibular deficiency. This quantitative, three-dimensional description of points along the proximal path of the @entity129 canal in @entity1 with @entity4802 provides useful information to assist the surgeon during osteotomy planning and may help in avoiding @entity128 at the time of surgery.
