![]() ![]() The virtual treatment was considered accurate all hard tissue landmark differences were less than 1mm. Statistical analyses were performed using a one-tailed, one-sample t-test for both soft- and hard tissue differences, and a Bland-Altman plot for interobserver bias.Ī total of 108 patients were included, the mean age was 30 years and 23% were male. The soft tissue changes were then modelled by Dolphin Imaging (version 11.5b) and the differences in x- and y-coordinates of 11 hard tissue and 14 soft tissue landmarks between the predicted model and 1-year postoperative LCG were determined. A hard tissue virtual surgery was performed on the preoperative LCG to match the hard tissue of the 1-year postoperative LCG. Preoperative and 1-year postoperative Lateral cephalograms (LCG) of patients undergoing Le Fort I, bilateral sagittal split osteotomy (BSSO) or bimaxillary osteotomy (Bimax) between 20 were retrospectively collected. The purpose of this retrospective study is to evaluate the accuracy of soft tissue prediction models with Dolphin Imaging.
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