IADR Abstract Archives
Complications Associated with Full-Arch Implant Supported Prostheses
Objectives: Full-arch fixed implant supported prostheses provide a fixed solution to edentulism, but may be associated with significant biological and mechanical complications. The aim of this study was to investigate the complications associated with the prostheses described in the literature, including screw complications, framework fracture and veneering fracture.
Methods: An electronic Medline search of English language publications was completed identifying relevant literature relating to full-arch fixed implant supported prostheses and their complications. The search period extended from 1946 to 2015 and included the search terms: “implant” AND “edentulous,” “implant” AND “fixed prostheses,” “implant” AND “full-arch” and “complete fixed prostheses.” Strict inclusion criteria was employed and required at least ten treated arches to be observed for a period of at least 1 year observation.
Results: Screw complication data could be utilised from fifteen studies. The complication incidence per implant ranged from 0 to 25% with a mean of 6% over an observation period of 3.75 to 15 years. Data on framework fracture was provided from 21 studies. The fracture incidence ranged from 0 to 29% with a mean of 4% over an observation period of 1 to 15 years. Veneering fracture data was available for 21 studies. Three types of veneering materials could be observed: Acrylic denture teeth with acrylic resin, ceramic and composite. A mean of 61% of prostheses with acrylic denture teeth and acrylic resin experienced fracture with range from 0-400%. Ceramic fracture ranged from 0-89% with only one study available for composite veneering with a fracture incidence of 128%.
Conclusions: Full-arch fixed implant supported prostheses provide a valuable solution to edentulism with many advantages, however complications can occur which may be influenced by framework misfit, degree of distal cantilever and parafunctional habits.
Methods: An electronic Medline search of English language publications was completed identifying relevant literature relating to full-arch fixed implant supported prostheses and their complications. The search period extended from 1946 to 2015 and included the search terms: “implant” AND “edentulous,” “implant” AND “fixed prostheses,” “implant” AND “full-arch” and “complete fixed prostheses.” Strict inclusion criteria was employed and required at least ten treated arches to be observed for a period of at least 1 year observation.
Results: Screw complication data could be utilised from fifteen studies. The complication incidence per implant ranged from 0 to 25% with a mean of 6% over an observation period of 3.75 to 15 years. Data on framework fracture was provided from 21 studies. The fracture incidence ranged from 0 to 29% with a mean of 4% over an observation period of 1 to 15 years. Veneering fracture data was available for 21 studies. Three types of veneering materials could be observed: Acrylic denture teeth with acrylic resin, ceramic and composite. A mean of 61% of prostheses with acrylic denture teeth and acrylic resin experienced fracture with range from 0-400%. Ceramic fracture ranged from 0-89% with only one study available for composite veneering with a fracture incidence of 128%.
Conclusions: Full-arch fixed implant supported prostheses provide a valuable solution to edentulism with many advantages, however complications can occur which may be influenced by framework misfit, degree of distal cantilever and parafunctional habits.