Numerical assessment of bone remodeling around conventionally and early loaded titanium and titaniumzirconium alloy dental implants
The aim of this study was to investigate conventionally and early loaded titanium and titaniumzirconium alloy implants by three-dimensional finite element stress analysis. Three-dimensional model of a dental implant was created and a thread area was established as a region of interest in trabecular bone to study a localized part of the global model with a refined mesh. The peri-implant tissues around conventionally loaded (model 1) and early loaded (model 2) implants were implemented and were used to explore principal stresses, displacement values, and equivalent strains in the peri-implant region of titanium and titaniumzirconium implants under static load of 300N with or without 30 inclination applied on top of the abutment surface. Under axial loading, principal stresses in both models were comparable for both implants and models. Under oblique loading, principal stresses around titaniumzirconium implants were slightly higher in both models. Comparable stress magnitudes were observed in both models. The displacement values and equivalent strain amplitudes around both implants and models were similar. Peri-implant bone around titanium and titaniumzirconium implants experiences similar stress magnitudes coupled with intraosseous implant displacement values under conventional loading and early loading simulations. Titaniumzirconium implants have biomechanical outcome comparable to conventional titanium implants under conventional loading and early loading.
titanium titaniumzirconium alloy dental implant finite element stress analysis early dental implant loading