Connection designs of three different implant systems in the resorbed edentulous maxilla: a case report

This report presents the mixed use of three different system implants for an implant-supported fixed bridge in a resorbed maxilla. Two of six implants that had been placed were lost. New implants were combined with the remaining implants that had been placed by the previous dentists in 1992 and 1997. The three implant systems consisted of the following: one incorporated an intramobile element into an implant device, and the other two were whole titanium screw-type implants (one with a machined surface and the other with a plasma-sprayed surface). This clinical report describes the connection designs of these different system implants to the fixed bridge and lists the complications that followed.