Influence of Prosthetic Parameters on Peri-Implant Bone Resorption in the First Year of Loading: A Multi-Factorial Analysis

BackgroundThe first year of prosthetic loading is crucial to peri-implant bone levels; however, contributing factors are yet barely understood. PurposeThe purpose of the study is to investigate the influence of patient-, implant-, and prosthetic-related parameters on marginal bone resorption in partially edentulous patients within the first year of prosthetic loading. Materials and MethodsThis retrospective multifactorial analysis involved the following influencing factors: patient gender and age, implant diameter, implant location and neck design, insertion torque, insertion depth, splinted versus single-tooth restorations, crown height space, and crown-to-implant ratio. ResultsMean peri-implant bone resorption around 200 dental implants was 0.980.76mm and significantly correlated to higher implant insertion depth (p<.001), whereas no association to prosthetic parameters could be observed. ConclusionsWithin the limits of the present analysis, it can be concluded that apical implant positioning may constitute a relevant determinant of early peri-implant bone resorption.