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Aim: Aim of this study was to evaluate and compare stress transfer at bone implant interface in customized root form implant and conventional endosseous implant. Materials and methodology: A three-dimensional finite element model of Emulate implant and conventional endosseous implant (nobel active 4.2X11.5mm) was generated. The implants were restored with metal ceramic crown and subjected to 20 Mpa of axial applied stress. Resolved stresses were examined at four heights along the implant bone interface. Results: In conventional endosseous implant with 100 % osseointegration higher stresses (1.01-0.12 MPa) were concentrated on the facial surface of crest of implant. The stresses decreased from junction of cortical bone and trabecular bone to the apex of implant (0.36 – 0.12 MPa). The maximum stresses on emulate implant with 100 % osseointegration were at the facial surface of the crest of implant (0.05 MPa) which were comparatively lesser than conventional endosseous implant (1.01 MPa). Conclusion: The degree of osseointegration affected the stress levels or distributions around both implants. Crestal stresses were always higher than apical stress. When the implants were 100% osseointegrated, then stresses were higher on conventional endosseous implant while in case of 50% osseointegration, stresses were higher on emulate implant.

european journal of dental and oral health

Evaluation of Stress Transfer at Bone Implant Interface in Emulate Implant and Conventional Endosseous Implant: A Comparative 3-D Finite Element Analysis Study