CLINICAL ACCURACY OF A COMPUTER-GENERATED SURGICAL GUIDE TEMPLATE IN SANDWICH OSTEOTOMY FOR POSTERIOR EDENTULOUS MANDIBLE

Document Type : Original Article

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Lecturer, Oral and Maxillofacial Surgery Department, Faculty of Oral and Dental Medicine, Cairo University, Egypt

Abstract

Background: The study was conducted to evaluate the accuracy of a novel design computer- generated surgical guide template (SGT) using rapid prototyping to guide the osteotomy cuts in sandwich osteotomy technique according to the pre-planned position to prevent injury to the infe- rior alveolar nerve.
 
Methods: Eight partially edentulous patients showing atrophy in the posterior mandibular ridge were included. A SGT was designed according to each case using a 3D modeling software to guide the bony osteotomy cuts during the surgical procedure. Preoperative, immediate post-operative and after 4 months CBCT was done for all patients. Dental implants were installed at the grafted sites after 4 months.
Results: Linear measurements were taken from the pre and post-operative CBCT. No statisti- cally significant difference was found between the pre and post-operative measurements (P ≤ 0.05).
Conclusion: The computer generated SGT provided enhanced visualization, better treatment planning, predictable results and a less technique sensitive procedure.

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