Titanium shock absorbers in a Munich chewing simulator
Ten titanium shock absorbers for tooth implants were subjected to a hardness test in a Munich chewing simulator according to the ISO standard 6872. 1.2 million load changes at 50 N under a loading angle of 30° and 10,000 thermal changes loads simulated carrying the implants in the mouth for five years. It is remarkable that none of the titanium shock absorbers came away from the screw connection to the mounting block during the aging simulation particularly since there was no rotation securing in place. Statistical evaluation of the 240 movement profiles produced an average increase in the spring travel of 4 µm. A comparable investigation of the cyclical force-travel measurements before and after the aging simulation in the Munich chewing simulator showed no negative effect on the shock absorbing properties of titanium shock absorbers.
This graphic shows an implant without the titanium shock absorber in a bridge connection with a natural tooth. The movability of the tooth causes the chewing forces to act as a lever on the rigid implant situation.