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Survival rate and cervical bone loss of implants placed in non vascularized iliac graft after segmental mandibulectomy

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.