Abstract
The aim of this prospective randomized control trial was to analyse the efficacy of a new trans-septal alar base cinch suture in controlling alar width in patients undergoing maxillary intrusion and setback by comparing it with the traditional cinch suture. Statistical evaluation was carried out in 62 of 76 patients. Group I (31 patients) received the traditional alar base cinch suture, and group II (31 patients) received the alar base cinch suture with an anchoring bite taken through the nasal septum 10mm behind its anterior edge. In both groups the accurate identification of alar fibroareolar tissue was facilitated by an 18gauge green needle passed extra orally. Alar base width was measured before and 6 months after surgery using Vernier callipers. Preoperative alar base width for group I was 29.76mm (1.901SD) and for group II 29.79mm (3.141SD); the postoperative values were 32.42mm (1.858SD) and 29.94mm (2.568SD), respectively. Mean alar base widening was 2.661mm (0.800SD) in group I and 0.145mm (2.050) in group II. The difference in alar widening was statistically significant (p<0.001). In conclusion, the trans-septal modified alar cinch suture offers better control of alar base architecture in maxillary intrusion and setback.
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