Original Article

Year : 2015

Volume : Volume 5

Issue : Issue 2

An Assessment of the Accuracy of Analytical Model Planning in Orthognathic Surgery

Dr. K Retna Kumar

Address for correspondence :
Dr. K Retna Kumar
retnak@gmail.com

Abstract


Background:  The purpose of this study was to assess our method of analytic model planning in achieving a planned maxillary movement for the correction of a dentofacial deformity. Five patients who underwent maxillary orthognathic surgery, at a minimum, were included in the study group. For each study subject, consistent analytic model planning with splint fabrication was used to establish the desired horizontal repositioning of the maxilla.External reference points and internal reference points were used to establish the vertical dimension. Using preoperative and 5-week postoperative lateral cephalometric radiographs, an analysis was designed to assess the difference between the planned and actual movement of the maxilla. The average difference between the planned and actual 5-week postsurgical vertical movement of the maxilla was ≥1mm(P‹0.05). For horizontal movements of maxilla, the mean difference between the planned and actual obtained movements of maxilla was not statistically significant both cephalometrically and in model surgery (P›0.05).

Keywords: Analytical model planning, ericksson model platform, Semi Adjustable Articulator.