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Egyptian Dental Journal
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Journal Archive
Volume Volume 67 (2021)
Volume Volume 66 (2020)
Issue Issue 4 - October (Orthodontics, Pediatric & Preventive Dentistry)
Issue Issue 4 - October (Oral Surgery)
Issue Issue 4 - October (Oral Medicine, X-Ray, Oral Biology & Oral Pathology)
Issue Issue 4 - October (Fixed Prosthodontics, Removable Prosthodontics and Dental Materials)
Issue Issue 4 - October (Conservative Dentistry and Endodontics)
Issue Issue 3 - July (Orthodontics, Pediatric & Preventive Dentistry)
Issue Issue 3 - ِJuly (Oral Surgery)
Issue Issue 3 - July (Oral Medicine, X-Ray, Oral Biology & Oral Pathology)
Issue Issue 3 - July (Fixed Prosthodontics, Removable Prosthodontics and Dental Materials)
Issue Issue 3 - July (Conservative Dentistry and Endodontics)
Issue Issue 2 - April (Orthodontics, Pediatric & Preventive Dentistry)
Issue Issue 2 - April (Oral Surgery)
Issue Issue 2 - April (Oral Medicine, X-Ray, Oral Biology & Oral Pathology)
Issue Issue 2 - April (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics)
Issue Issue 1 - January (Orthodontics, Pediatric & Preventive Dentistry)
Issue Issue 1 - January (Oral Surgery)
Issue Issue 1 - January (Oral Medicine, X-Ray, Oral Biology & Oral Pathology)
Issue Issue 1 - January (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics)
Volume Volume 65 (2019)
Volume Volume 64 (2018)
Volume Volume 63 (2017)
Volume Volume 62 (2016)
Mohamed, F. (2020). Three dimensional accuracy of mandibular reconstruction by pre-bent reconstruction plate using intra oral versus extra oral approaches following mandibular resection in patients with extensive ameloblastoma . Egyptian Dental Journal, 66(Issue 2 - April (Oral Surgery)), 905-917. doi: 10.21608/edj.2020.24777.1047
Fatma Ibrahim Mohamed. "Three dimensional accuracy of mandibular reconstruction by pre-bent reconstruction plate using intra oral versus extra oral approaches following mandibular resection in patients with extensive ameloblastoma ". Egyptian Dental Journal, 66, Issue 2 - April (Oral Surgery), 2020, 905-917. doi: 10.21608/edj.2020.24777.1047
Mohamed, F. (2020). 'Three dimensional accuracy of mandibular reconstruction by pre-bent reconstruction plate using intra oral versus extra oral approaches following mandibular resection in patients with extensive ameloblastoma ', Egyptian Dental Journal, 66(Issue 2 - April (Oral Surgery)), pp. 905-917. doi: 10.21608/edj.2020.24777.1047
Mohamed, F. Three dimensional accuracy of mandibular reconstruction by pre-bent reconstruction plate using intra oral versus extra oral approaches following mandibular resection in patients with extensive ameloblastoma . Egyptian Dental Journal, 2020; 66(Issue 2 - April (Oral Surgery)): 905-917. doi: 10.21608/edj.2020.24777.1047

Three dimensional accuracy of mandibular reconstruction by pre-bent reconstruction plate using intra oral versus extra oral approaches following mandibular resection in patients with extensive ameloblastoma 

Article 9, Volume 66, Issue 2 - April (Oral Surgery), April 2020, Page 905-917  XML PDF (782.87 K)
Document Type: Original Article
DOI: 10.21608/edj.2020.24777.1047
Author
Fatma Ibrahim Mohamed email
Oral and Maxillofacial Surgery department, faculty of dental medicine, Al Azhar University, Cairo Egypt
Abstract
Purpose: This prospective study aimed to compare the intraoral placement of the pre-bent reconstruction plate with that inserted via the extraoral approach, to evaluate their impact on the three-dimensional (3D) position of the proximal segment
Patients and methods: Patients were divided into two equal groups. In group 1, the mandible was reconstructed with a pre-bent reconstruction plate via an intraoral approach. In group 2, an extraoral approach was used. The primary outcome variables were the need for intraoperative plate readjustment, the time needed for plate insertion, total operation time, difficulties encountered during surgery, and the postoperative stability of the proximal segment. Distances between corresponding anatomical landmarks on the mandibular angle and condyle as well as the intercondylar angle (ICA) and B`XC angle, were measured. The difference between the pre- and postoperative measurements was used to evaluate the reconstruction accuracy.
Results: Thirty patients were enrolled in this study. In group 1, four plates required minor readjustment. In group 2, only two cases required re-adaptation. The intraoral insertion of the pre-bent plates revealed a decrease in the linear measurements, resulting in mandibular compression. On contrary, the extraoral approach showed increase in the measurements, resulting in widening of the mandible. However, this width difference was statistically insignificant. Concerning the ICA and B`XC angle, no significant difference could be ascertained between the two groups.
Conclusion: Intraoral approach is more conservative procedure, thereby achieving the best esthetic outcomes and resulting in a more accurate 3D mandibular reconstruction.
Keywords
Ameloblastoma; Mandibular reconstruction; Pre-bent reconstruction plate, rapid prototyping model (RPM), computed tomography (CT) measurements
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