Six
different conditions of load were hypothesised for the three different implants:
Vertical load of 200N ( 20 kg ) applied on the second tooth in the implant
-
Vertical load of 200N + transverse load of 40N applied on the second tooth in
the implant -
Vertical load of 200N applied on the fourth tooth in the implant -
Vertical load of 200N + transverse load of 40N applied on the fourth tooth in
the implant -
Vertical load of 200N applied on the second tooth in the implant and vertical
load of 200N applied on the fourth tooth in the implant Vertical
load of 200N + transverse load of 40N applied on the second tooth in the implant
and vertical load of 200N + transverse load of 40N applied on the fourth tooth
in the implant
RESULTS
When
analysing the tensional status of the various biomechanical systems illustrated
above, special attention was focused on the superior part of the cortical bone
in the hemimandible because this was one of the most heavily laden areas; the
tensions in the implant interface zone were also compared, since experience has
shown this to be one of the worst affected areas in terms of bone resorption.
s
tensions along the X and Y axes, occurring in the plane in which the superior
cortical bone of the hemimandible is positioned, were measured and compared.
Negative values indicate a state of compression, whereas positive values show
a state of traction.
The
tension values given in the figures and charts are expressed in MPa.