Evaluation of Stress Generated with Different Abutment Materials and Angulations under Axial and Oblique Loading in the Anterior Maxilla: Three-Dimensional Finite Element Analysis
Table 3
Von Mises stress (MPa) in FEA models of anterior maxilla with abutments of different angulation and material.
Axial load
Oblique load
Model IA & IB: abutment of zero degree angulation
IA
IB
IA
IB
Implant
Implant neck
78.18
73.04
3.90
3.57
Implant body
52.12
52.25
1.36
1.47
Implant apex
9.32
9.32
0.80
1.00
Peri-implant bone
Cortical bone (labial)
21.61
17.48
20.91
15.70
Cortical bone (palatal)
28.7
26.97
27.14
21.70
Model IIA & IIB: abutment of 15 degree angulation
IIA
IIB
IIA
IIB
Implant
Implant neck
110.32
100.24
37.25
35.29
Implant body
53.67
50.24
22.25
18.73
Implant apex
16.39
14.09
8.61
6.16
Peri-implant bone
Cortical bone (labial)
23.40
30.89
22.51
17.51
Cortical bone (palatal)
32.40
33.80
28.72
25.00
Model IIIA & IIIB: abutment of 25 degree angulation
