Delayed versus simultaneous implant placement with ramus block grafts: A retrospective cohort study

Authors : Senem Askın Ekıncı, Ceren Küçük, Gokhan Gocmen

Pages : 318-328

Doi:10.21673/anadoluklin.1453783

View : 42 | Download : 116

Publication Date : 2024-09-23

Article Type : Research Paper

Abstract :Aim: This study compared the graft stability and implant success of delayed implantation versus simultaneous implantation with autogenous grafts. Methods: The study sample comprised a population of patients who underwent autogenous block bone grafting using the ramus of the mandible. Patients with data from 1 year of follow-up were divided into two groups according to implantation approach: delayed implantation and simultaneous implantation. Outcome variables were 3D volume changes (the bone graft volumes at post-implantation and 1-year follow-up, resorption volume, and resorption rate of the bone graft), 2D linear changes (the bone graft width at post-implantation and 1-year follow-up, 2D resorption amount, and resorption rate of the bone graft), marginal bone loss, and implant success. Results: The final sample comprised 21 subjects, and 33 implants were investigated. In total, 51.5% (n=17) were placed with a simultaneous approach and 48.5% (n=16) with a delayed approach. The simultaneous approach resulted in a higher rate of graft resorption in both the 3D and 2D measurements compared to the delayed implantation (p=0.001 and p=0.014, respectively). There was no difference between the two groups in terms of graft volume, graft width, marginal bone loss, or implant success at the 1-year follow-up (p=0.958, p=0.039, p=0.168, and p=1.000, respectively). Conclusion: Although simultaneous implantation resulted in a higher resorption rate than delayed implantation, the graft volume and width, marginal bone loss, and implant success were similar at the 1-year follow-up.
Keywords : Alveolar kemik grefti, alveoler bombe ögmentasyonu, diş implantasyonu, üç boyutlu görüntü