An analysis of 4,045 implants placed in function during a 5-year period yielded eight fractured implants (0.2%). All fractures had associated marginal bone loss. The majority (six of eight) were supporting posterior prostheses. All patients with fractured implants were diagnosed to have parafunctional habits. Most patients presented with loosening or fracture of prosthetic gold screws or abutment screws prior to fracture. Treating fractured implants can be accomplished by refacing the fractured titanium and adapting new abutments or replacing the entire implant with subsequent prosthesis refabrication. Schlagwörter: bone resorption, fractured implant, implant repair, implant replacement, occlusal load, osseointegrated implant, parafunctional forces