Three-Dimensional Finite Element Analysis of Different Connector Designs for All-Ceramic Implant-Supported Fixed Dental Prostheses

All-ceramic fixed dental prostheses (FDPs) tend to fracture at the connector regions due high stress concentration these areas influenced by their design. This study was performed as an adjunct existing clinical evaluate influence of different radii curvature gingival embrasure on distribution a three-unit all-ceramic implanted supported FDP. Three three-dimensional (3D) models were created scanning two titanium implants, suitable zirconia abutments, and patient-retrieved prosthesis using micro-CT scanner. The radius for distal FDP altered measure 0.25 mm, 0.50 0.75 mm. A finite element analysis (FEA) software (ABAQUS) used impact designs stresses. Maximum Principal Stress data collected from individual components (veneer, framework, abutments). had significant assessed components. tensile peak stresses all structures highest in mm model, while presented similar values more uniform distribution.