Effect of Dental Implant Dimensions on Fatigue Behaviour: A Numerical Approach

In this study, the effect of the implant shape on fatigue behaviour was investigated with the finite element method. The implant material used was Ti6Al4V. The examination focus on the effect on the implant life with respect to changes in the crest and root dimension, thread depth, thread pitch, implant length, implant diameter, chamfer length, chamfer radius, and groove length to implant length ratio. Models were subjected to fatigue analysis according to ISO 14801 standard with ANSYS finite element software. The mean stress correction theory is chosen in fatigue life solutions. As a result, the parameters seen to have the most effect on dental implant fatigue behaviour were the implant length and diameter. The parameters with the most effect on the implant screw fatigue were pitch and the height of the tooth.