A Photoelastic Stress Analysis of Screw‐ and Cement‐Retained Implant Prostheses with Marginal Gaps

Abstract

Screw-retained FPDs with gaps exhibited a wider range of stresses on the interproximal region of adjacent implants than cement-retained FPDs. However, severe misfit in the prosthesis caused the nonaxial stress transfer to the adjacent implants in the cement-retained FPDs with gaps.