Quantitative Assessment of Nasal Changes After Maxillomandibular Surgery Using a 3-Dimensional Digital Imaging System

Abstract

Changes to the nose clearly occur after orthognathic surgery. There was a statistically significant increase in postoperative interalar width and internostril width with maxillary movement. However, no clear correlation could be determined between amount of change and maxillary movement. Interestingly, maxillary advancement did not show any significant change in nasal tip projection or columellar length, with data showing both increases and decreases in measurements. The nasolabial angle in patients who underwent maxillary advancement with impaction (upward rotation) was the only measurement that showed a statistically significant increase.