Assessing the survival rate of implants placed in vascularized and nonvascularized bone grafts for extensive jaw reconstructions in 2010 to 2021 articles: A review

Abstract

Introduction: Restoring oral function with dental implants after maxillofacial defects im- proves aesthetics and provides adequate nutrition to improve patients’ quality of life significantly. One of the essential methods of repairing jawbone defects is bone grafting. Graft sources may be vascularized or nonsecularized. The present study aimed to review the survival rate of implants placed in vascularized and nonvascularized bone grafts for extensive jaw reconstructions in 2010 to 2021 articles. Materials and Methods: This study is a narrative review study. In this study, research pub- lished in PubMed, Google Scholar, and Scapus databases has been reviewed by a review method and with a keyword search strategy. Results: 2815 articles were found from the mentioned databases that after removing unrelated research (2713 cases) and duplicate researches (63 cases), 39 articles remained for final review. Then, those research that were presented in the scientific conference and were in the form of ab- stracts or did not have a correct statistical population, were excluded from the study (18 cases) and finally 21 articles were reviewed. Conclusion: Bone jaw defects are a severe complication that affects many aspects of a person’s life. Our results showed that vascularized and nonvascularized grafts are used for mandibular and maxillary bone regeneration. Also, after maxillary reconstruction, implant survival in vascularized and nonvascularized grafts was more than 90% in the 17 cases of 21 studied articles. Also, the duration of follow-ups was from 3 months to 14 years. Interestingly, in patients with head and neck cancer whose jaws were reconstructed with bone grafts and implants were placed in them, the survival rate of implants under radiotherapy was lower than in patients without radiotherapy.