Evaluation of Implant Survival and Success Rates in Patients with Different Bone Types Over Five Years
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Date
2025-03
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Publisher
Society for Healthcare & Research Development
Abstract
Background: Aim: The aim of this study was to evaluate the survival and success rates of dental implants placed in patients with different bone types over a five-year period. The impact of varying bone qualities, specifically Type I to Type IV bone, on implant outcomes was assessed to provide valuable insights for improving treatment planning in implantology. Subjects and Methods: This retrospective/prospective observational study included 80 patients (40 males, 40 females) aged 35–70 years, who underwent dental implant placement at a tertiary care hospital. Bone quality was classified into four types based on the Misch and Lekholm-Zarb systems, with bone assessments done using preoperative cone-beam computed tomography (CBCT) or panoramic radiographs. Implant surgeries followed standard protocols with primary stability measured by insertion torque. Patients were followed up at 1, 3, 6, 12, 24, 36, 48, and 60 months to assess implant survival and success, based on clinical and radiographic criteria. Results: The survival rate for Type I bone was the highest at 95.00%, followed by Type II at 90.00%, Type III at 86.67%, and Type IV at 80.00%. Success rates mirrored survival rates, with Type I implants showing 94.55% success and Type II at 89.75%. Type III and IV implants had lower success rates, at 80.00% and 73.33%, respectively. The survival and success rates for Type I and Type II implants remained relatively stable throughout the study period, while Type III and IV implants saw notable declines, especially by year five. Implant failure was predominantly due to bone loss and infection, with Type IV bone showing the highest failure rate (33.33%). Conclusion: This study demonstrates that bone quality significantly affects the survival and success of dental implants, with higher survival and success rates in denser bone types (Type I and Type II). Personalized treatment plans, including interventions such as bone augmentation, are essential for patients with lower-density bone types to optimize implant outcomes. The results emphasize the need for tailored approaches in implantology to address the challenges posed by different bone qualities.
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Keywords
Implant survival, bone quality, dental implants, bone types, implant success, long-term outcomes
Citation
Arora J, Kumar R..Evaluation of Implant Survival and Success Rates in Patients with Different Bone Types Over Five Years.Asian Journal of Medical Research.2025 Mar;14(1):1-5