Determination of Stresses Induced In the Jawbone after Implant of Tooth Using Finite Element Method

- The aim of this study was to evaluate the effect of dental implant with different length and diameter in surrounding bone of implant under normal vertical load.A comparative study between short length and diameter and large length and diameter of implant is done so as to obtain best feasible length and diameter of implant that makes less deformation by using finite element analysis (3D FEA). Material and Methods - The FEM and analysis techniques are used to replicate and evaluate the deformation in surrounding bone and stress profile created the mandible single tooth implant surrounding bone. Homogeneous, linear, elastic material behavior for the jawbone and titanium implant of young?s modulus 110Gpa were assumed. Results - Maximum stress areas were located at the implant neck, and possible overloading could occur in compression in compact bone and in tension at the interface between cortical and spongy bone. Stress values and concentration area were decreased for surrounding bone when implant length and diameter increased. For implants with comparable diameter and length, compressive stress values at surrounding bone were reduced when low crestal bone loss was considered. Conclusion - Implant dimension and bone quality affects load transmission mechanisms. Implant length12.5mm and 4mm diameter gives fissile stress distribution and less deformation in surrounding bone.