Long Term Follow-Up of Dental Implants Placed in Autologous Onlay Bone Graft

• Published in: Clinical implant dentistry and related research Vol. 18; no. 3; pp. 449 - 461
• Main Authors: Schwartz-Arad, Devorah, Ofec, Ronen, Eliyahu, Galit, Ruban, Angela, Sterer, Nir
• Format: Journal Article
• Language: English
• Published: United States Blackwell Publishing Ltd 01.06.2016
• Subjects: autologous bone; bone augmentation; bone grafting; Bone Transplantation - methods; Dental Implantation, Endosseous - methods; Dental Implants; Dental Restoration Failure; Dentistry; Female; Follow-Up Studies; Humans; implant survival; long-term survival; Male; Middle Aged; Minerals; Platelet-Rich Plasma; Retrospective Studies; Transplantation, Autologous; autologous bone; long-term survival; implant survival; bone grafting; bone augmentation
• ISSN: 1523-0899; 1708-8208
• DOI: 10.1111/cid.12288

Purpose The aim of this study was to evaluate the efficacy of autologous intraoral onlay bone grafting (OBG) in correlation with long‐term survival rates of dental implants placed in the augmented bone. Materials and Methods A retrospective study was conducted on 214 patients who received a total of 633 dental implants placed in 224 autologous intraoral block OBG augmentations, combined with Bio‐Oss – mixed with platelet‐rich plasma (PRP) and covered by platelet‐poor plasma (PPP) – as scaffold, with a follow‐up time up to 137 months (mean 39.9 ± 30.9 months). Results A total of 216 OBG cases were successful (96.4%), and most of the augmentations were uneventful (88.4%). Bone graft exposure was moderately associated with bone graft failure (χ2 = 3.76, p = .052). The healing period after implant placement was 4–6 months (mean 5.6 ± 2.56). The majority of the 591 implants survived (93.4%). The cumulative survival rate of the implants was 83%. Conclusions We suggest that augmentation of severely atrophied jaw bone through the placement of horizontal and/or vertical intraoral OBGs in combination with Bio‐Oss saturated with PRP and covered by PPP should be considered a reliable, safe, and very effective surgical technique for obtaining high bone graft survival rate and high long‐term implant survival rate.