Tehran University of Medical Sciences Frontiers in Dentistry 2676-296X 4 1 2007 03 15 15 20 A. Geramy Gh. Ommati-Shabestary L. Eghlima 2015 10 03 Objective: This study was designed to compare the stress produced at the PDL of abutment teeth with two angles of cervical convergence, in otherwise similar settings. Materials and Methods: Two finite element models were designed for a second premolar and a removable partial denture frame containing an I-bar clasp. Maximum Principal Stress (S1) and Von Mises Stress (SEQV) were assessed along a cervico-apical path of nodes in the PDL. Results: Output data for S1 and SEQV were the same regarding the height of contour. A gradual decrease in both models was observed. A larger decrease was found in the model with the higher angle of cervical convergence. Conclusion: I-bars placed on teeth with lower angles of cervical convergence produce a higher stress to the PDL of abutments. https://fid.tums.ac.ir/index.php/fid/article/view/108 https://fid.tums.ac.ir/index.php/fid/article/download/108/108