Fig. 4From: Effect of crown-to-implant ratio and crown height space on marginal bone stress: a finite element analysisStress pattern in the reference model: a Short implants. The grey areas represent stresses above 60 MPa. b Bone part. The grey areas present stresses above 30 MPa. c Prosthetic framework. The grey areas represent stresses above 150 MPa. d Prosthetic screws. The grey regions present stresses above 200 MPaBack to article page