Abstract
BackgroundJaw bone and iliac bone are the most frequently used autologous bone sources for dental implant placement in patients with atrophic alveolar ridges. However, the comparative long-term stability of these two autologous bone grafts have not yet been investigated. The aim of this study was to compare the stability of simultaneously placed dental implants with autologous bone grafts harvested from either the iliac crest or the intraoral jaw bone for severely atrophic alveolar ridges.MethodsIn total, 36 patients (21 men and 15 women) were selected and a retrospective medical record review was performed. We compared the residual increased bone height of the grafted bone, peri-implantitis incidence, radiological density in newly generated bones (HU values), and implant stability using resonance frequency analysis (ISQ values) between the two autologous bone graft groups.ResultsBoth autologous bone graft groups (iliac bone and jaw bone) showed favorable clinical results, with similar long-term implant stability and overall implant survival rates. However, the grafted iliac bone exhibited more prompt vertical loss than the jaw bone, in particular, the largest vertical bone reduction was observed within 6 months after the bone graft. In contrast, the jaw bone graft group exhibited a slower vertical bone resorption rate and a lower incidence of peri-implantitis during long-term follow-up than the iliac bone graft group.ConclusionsThese findings demonstrate that simultaneous dental implantation with the autologous intraoral jaw bone graft method may be reliable for the reconstruction of edentulous atrophic alveolar ridges.
Highlights
Jaw bone and iliac bone are the most frequently used autologous bone sources for dental implant placement in patients with atrophic alveolar ridges
The aim of this study was to compare the stability of simultaneously placed dental implants with autologous bone grafts harvested from either the iliac crest or the intraoral jaw bone for severely atrophic alveolar ridges
The inclusion criteria were patients who agreed to participate in the study and who had completed at least 3 years of follow-up after undergoing simultaneous dental implantation and autologous bone grafting for the reconstruction of partially or fully edentulous upper and/or lower alveolar ridges
Summary
Jaw bone and iliac bone are the most frequently used autologous bone sources for dental implant placement in patients with atrophic alveolar ridges. The aim of this study was to compare the stability of simultaneously placed dental implants with autologous bone grafts harvested from either the iliac crest or the intraoral jaw bone for severely atrophic alveolar ridges. In patients with less than 4 mm residual bone height in the maxillary posterior ridge, delayed implant placement at 6 to 18 months after subantral bone grafting is highly recommended [2, 3]. Other researchers have reported similar implant success rates between delayed and immediate implantation after bone graft in the maxillary posterior ridge in patients’ exhibiting a residual bone height of less than 4 mm [4]. Many other studies have shown high survival rates for immediately placed implants with various bone graft techniques in severely atrophic alveolar ridges [5,6,7,8]
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