Prosthetic complications of fixed dental prostheses supported by locking-taper implants: a retrospective study with a mean follow-up of 5 years

Abstract Background Restoration with locking-taper implants is a widely used methodology. However, conical connection systems such as implant have rarely been examined. This study provides retrospective investigation of fixed restorations, mainly focusing on prosthetic complications. Methods Patients undergo treatment connected from 2008 to 2010 were Preparation the sites was performed according standard procedures for Bicon system. Bone healing took over 6 months, and procedure initiated thereafter. Integrated abutment crowns or gold porcelain used, prosthesis type single crown dental prosthesis. Once in place, its occlusion thoroughly checked adjusted, then glazed finely polished. The Kaplan–Meier method calculate cumulative complication-free rates 5 10 years. Additionally, Cox regression model identify factors that independently influenced results. Implant survival marginal bone loss also investigated. Results A total 392 patients who underwent 541 434 locking taper implant-based restorations overall 5-year rate 83.34%. most common complication veneer chipping, frequency 67.53%. According model, integrated significantly higher than crowns, molar regions premolar regions, females males. Only three failures happened, mean values at 1- year, 5-years 10- years 0.25 mm (95% CI ± 0.12), 0.40 0.03) 0.51 0.05), respectively. Conclusion Veneer chipping implant-supported restorations. incidence complications IACs GPCs. Age, location, are not determinants Besides, long-term clinical effect can meet needs. tissue level around maintain stability.