Good functional properties are essential in dental implantology. Bio-kinetic elements are imitating dental resilience. In this study
a new kind of implants with maintenance free shock absorbing elements will be introduced and their bio-mechanic properties
reported. The mobile implant (SIS Inc., Klagenfurt, Austria) is a self-cutting conical screw implant with an integrated bio-kinetic
element. The shock absorber is a central part of the implant and a titanium ring closes the shock absorbing unit within the implant.
The resilience of the implant was tested by axial and horizontal loading in a special testing unit. Furthermore, a survival test of the
elastic titanium ring in the most exposed cervical part of the implant was performed. The region was examined by electron microscopy
after 12 million movements in the axial and horizontal direction. A progressive shock absorption was registered during horizontal and
axial movements. The maximum movements were 0.06mm in the axial and 0.16mm in the horizontal direction. There were seen no
signs of material destruction in the electron microscopic analysis. A maintenance-free bio-kinetic implant with progressive shock
absorbing qualities was registered. 2001 Elsevier Science Ltd. All rights reserved.