Tehran University of Medical Sciences Journal of Craniomaxillofacial Research 2345-5489 6 2 2019 10 13 60 65 Abbas Karimi Oral and Maxillofacial Surgeon, Craniomaxillofacial Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Oral and Maxillofacial Surgery, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran. Khatere Arian Rad Dentist Private Practice. Hassan Mir Mohammad Sadeghi Oral and Maxillofacial Surgeon, Department of Oral and Maxillofacial Ssurgery, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Mahboube Hasheminasab Oral and Maxillofacial Surgeon, Craniomaxillofacial Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Oral and Maxillofacial Surgery, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran. 2019 07 26 2019 07 26 Objective: The purpose of this study was to evaluate the survival rate and the amount of periimplant bone loss in implants placed in free iliac graft following segmental mandible resection. Materials and Methods: Over a 5-year period between 2010 and 2015, nine patients with odontogenic tumors who were candidate for segmental mandible resection were enrolled in this study. Resection defect was immediately reconstructed with non-vascularized iliac graft and 4-6 months later 36 implants of 5 different brands were inserted in grafted mandibles. Information regarding implant survival, peri implant bone loss or inflammation for a mean follow up period of 33 months was obtained. Results: One implant was failed out of 36 implants and the cumulative survival rate of implants was 97.2% in this follow up period. There was no sign of peri implant inflammation or gingival recession or BOP in any patients. The cervical bone loss level varied between 0.6 to 12mm (the length of failed implant) with the average of 0.96 mm. The bone loss level of survived implants varied between 0.6to 1.72mm with average of 0.64mm. Conclusion: This study demonstrated that reconstruction of segmental mandibular defect with non vascularized iliac graft followed by dental implant placement is an effective and predictable method to restore oral function. Keywords: Implant; Non vascularized iliac graft; Segmental resection; Survival; Cervical bone loss. https://jcr.tums.ac.ir/index.php/jcr/article/view/292 https://jcr.tums.ac.ir/index.php/jcr/article/download/292/264