The all-on-4 concept in the maxilla-A biomechanical analysis involving high performance polymers.

A finite element analysis was used to determine the loading behavior of a full "All-on-4" bridge in the maxilla made from different framework materials. The model was generated based on data from an edentulous maxilla. Four implants were positioned according to the All-on-4 concept and a full arch restoration was created on top of the implants.