Thesis (M.Sc.) - Cairo University - Faculty of Oral and dental medicine - Department of Oral and Maxillofacial surgery

The present study was conducted to compare between miniplate fixation and lag screw, both clinically and radiographically, in the treatment of mandibular angular fractures. The study involved twelve adult patients suffering from mandibular angular fracture with/without other fractures in the maxillofacial region selected in the Oral and Maxillofacial Surgery Department, Faculty of Dentistry In Cairo University and. A prospective comparative study was carried out in patients with well defined inclusion and exclusion criteria. Inclusion criteria: 1. Angular fractures. 2. Age range 18-50. Exclusion criteria: Local criteria: 1. Comminuted fractures. 2. Associated pathology. Systemic criteria: 1. Any debilitating systemic diseases. 2. Any bone disturbance metabolism. Therefore, patients were grouped as follows:Group A: ORIF through intra-oral approach Miniplates (Champy technique).Group B: ORIF through intra-oral approach and transbucacal trocar using lag screw technique. Clinical assessment will be made for all patients according to the following schedule:1. Immediate post-operative. 2. 2 weeks post-operative. 3. 2 months post-operative. CBCT will be made for all patients according to the following schedule: 1. Pre-operative. 2. Immediate post-operative. 3. 2 months post-operative. The collected results were tabulated and statistically analyzed. The study showed that there is no statistical significance between the 2 groups regarding all clinical finding. Concerning the radiographic findings the fracture gap is measured on CBCT in both groups both immediately post-operative and after 2 months and comparison is made between two groups and it was found that the Fracture gap in group B is smaller then in group A both immediately and after two months postoperative and the difference was shown to be highly statistically significant

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