Reliability of Using Virtual Planning Software in Prediction of 3D Volumetric Soft Tissue Changes After Genioplasty in Patients With Chin Deformity (Case Series)

Document Type : Original Article

Authors

1 Student, Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Cairo University

2 Assistant Professor of Oral and Maxillofacial Surgery, Faculty of Dentistry, Cairo University

3 Professor of Oral and Maxillofacial Surgery, Faculty of Dentistry, Cairo University

Abstract

Objectives: The aim of this study was to evaluate the reliability of software soft tissue prediction.

Materials and Methods: Computer-guided genioplasty was done for seven patients with a retruded chin followed by six months postoperative period of follow-up to evaluate the results. Materialize Mimics software was used for the simulation and 3-Matic software was used for guide designing and computing the comparison between the actual and simulated soft tissue. Paired Student “t” test was used to evaluate the accuracy of surgical guide, accuracy of prediction and to compare between the pre and post soft tissue segment changes.

Results: This study found that the software accuracy was an average of 92.86%, which is an all-simulation accuracy percentage that ranged from -2 to 2 mm and the mean of absolute error was 0.169.

Conclusion: This software was reliable in the prediction of soft tissue changes except in the submental region and the tip of the chin.

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Egyptian Dental Journal
Volume 68, Issue 2 - Serial Number 2
April Oral Surgery
April 2022
Pages 1389-1400

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