Computer guided maxillary positioning using osteotomy/plates locating surgical guides in management of maxillary deficiency
Askar, N., Omara, M. (2019). Computer guided maxillary positioning using osteotomy/plates locating surgical guides in management of maxillary deficiency. EKB Journal Management System, 65(Issue 3 - July (Oral Surgery)), 2103-2113. doi: 10.21608/edj.2019.72225
Niveen Askar; Mohammed Omara. "Computer guided maxillary positioning using osteotomy/plates locating surgical guides in management of maxillary deficiency". EKB Journal Management System, 65, Issue 3 - July (Oral Surgery), 2019, 2103-2113. doi: 10.21608/edj.2019.72225
Askar, N., Omara, M. (2019). 'Computer guided maxillary positioning using osteotomy/plates locating surgical guides in management of maxillary deficiency', EKB Journal Management System, 65(Issue 3 - July (Oral Surgery)), pp. 2103-2113. doi: 10.21608/edj.2019.72225
Askar, N., Omara, M. Computer guided maxillary positioning using osteotomy/plates locating surgical guides in management of maxillary deficiency. EKB Journal Management System, 2019; 65(Issue 3 - July (Oral Surgery)): 2103-2113. doi: 10.21608/edj.2019.72225

Computer guided maxillary positioning using osteotomy/plates locating surgical guides in management of maxillary deficiency

Egyptian Dental Journal
Article 6, Volume 65, Issue 3 - July (Oral Surgery), July 2019, Page 2103-2113  XML PDF (2.59 MB)
Document Type: Original Article
DOI: 10.21608/edj.2019.72225
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Authors
Niveen Askar1; Mohammed Omara2
1Associate Professor at department of Oral & Maxillofacial surgery, Faculty of Dentistry,Cairo University,Egypt
2Lecturer at the department of oral and maxillofacial surgery. Affiliation: Faculty of oral and dental medicine, Cairo University, Egypt
Abstract
Maxillary segment repositioning is essential for esthetic and functional outcomes. Increased success and experience achieved with computer guided Le Fort I osteotomy turned the attention to develop surgical techniques to cope with deficient maxilla solving the problem of the time-consuming manual steps of intermediate wafer fabrication in addition to its inability to adjust the correct vertical position of the maxilla in relation to the skull base. This study aimed to evaluate CAD/CAM generated osteotomy/ plates locating surgical guides in three-dimensional maxillary segment repositioning. Ten patients with maxillary hypoplasia were subjected to virtual model surgery forming corrected 3D skull models for titanium plates pre-bending. Screw holes were marked to the corrected 3D skull models for construction of osteotomy / plates locating surgical guides. Pre-bent plates were installed intra-operatively into the predetermined screw holes. Placement of the plates adjust the depressed maxilla three dimensionally. All patients were clinically and radiographically evaluated pre and post-operatively. Degree of three-dimensional corrective movement were measured and statistically evaluated. CAD/CAM generated osteotomy plates locating surgical guides were proved to be more reliable for three-dimensional maxillary segment repositioning.
Keywords
Computer guided; Maxillary repositioning; Orthognathic surgery
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