From: Effect of crown-to-implant ratio and crown height space on marginal bone stress: a finite element analysis
CIR = 4, reference model
CIR = 3
CIR = 2.5
CIR = 2
Bone
96.9
79.2
69.8
55.1
Implants
351.6
315.3
272.9
289.2
Implant screws
344.6
237.9
204.9
181.1
Prosthetic framework
326.9
254.3
215.4
174.6