Microgaps in implant-pilar connections – a systematic review

Vol. 11 – Number 44 – 2020 IMPLANT DENTAL NOTEBOOK Systematic review Page 65-69 Microgaps in implant-pilar connections – a systematic review Reinaldo Francisco Maia1 Nasser Hussein Fares2 Marcelo José Carbonari3 Marcelo Guerino Couto4 ABSTRACT The literature shows that the presence of microgaps in the connection between the implant and the pilar becomes a potential complicator in dental restoration processes and contributes to mechanical and biological failures that may occur in short, medium, and long term. Literature also shows different aspects related to failures in the osteointegration process of dental implants, however, the most frequent complications are related to the mechanical characteristics resulting from the manufacturing process of implants and their components. The search for the perfect adaptation in the region of the implant-pilar interface must be paramount both for the companies that manufacture it and for the professionals that use this solution. The implant loss process and the failures in implant-pilar interface, in many cases, is/are characterized by micro bacterial infiltration that can occur due to the lack of adaptation between the implant and the component or even by screw loosening that may contribute in the future with the fracture of the pilar and in the processes of marginal bone loss due to the applied overload. The objective of this article was to horizontally evaluate, according to the most recent literature, microgaps in the connections between implant and pilar, analyzing the main mechanical and biological characteristics. Descriptors: Microgaps, infiltration, bacteria, implant-pilar connection. 1 Esp. in implant – ABCD, President of ABCD / DF. 2 Me. In Materials – FOB-USP, President ABCD MT. 3 Insper – Institute of Education and Research, Dr. in Science – Nuclear Technology – Materials. 4 Dr. in Materials – FOB-USP, CD – TCE / RJ.