3D Finite Element Study on Incomplete Osseointegration: Locator Attachment versus Ball Attachment


  • Hisham S. ElGabry Department of Prosthodontics, National Research Centre, MSA University, 6th of October City, Egypt http://orcid.org/0000-0003-3235-1625
  • Salah A. Yousief Department of Restorative and Prosthetic, College of Dentistry, Dar Al Uloom University, Riyadh, Saudi Arabia
  • Amal H. Moubarak Department of Removable Prosthodontics, Ain Shams University, Cairo, Egypt
  • Iman A. Eltaftazani Department of Removable Prosthodontics, Misr International University, Cairo, Egypt
  • Mohamad El-Anwar Prof. Mechanical Engineering Dept. National Research Center, Cairo, Egypt
  • Mohamed M. EL-Zawahry Professor Prosthodontics Dept. National Research Centre-Cairo Egypt




Finite Element Analysis, Locator Attachment, Ball and Socket Attachment, Incomplete Osseointegration


BACKGROUND: Incomplete implant osseointegration may affect the choice of the type of attachment to ensure less amount of bone resorption, periods of maintenance, and longer implant/attachment life-time.

AIM: The aim of this study was to evaluate, using 3D FE analysis (FEA), the influence of two different types of attachments on the rate of bone resorption, need for maintenance and implant/attachment life time in cases of unpredictable osseointegration in various bone types and using different implant angulations.

METHODS: Six finite element models were prepared; three for the locator attachment while the other three for the ball attachment. Each of the three models simulates vertical implant and inclined implants by 10° and 20° degrees. Frictional contact between implant and cortical bone simulated the incomplete osseointegration scenario.

RESULTS: Non-linear static analysis results showed that locator attachment and its cap may have longer time life in comparison with the ball attachment and its cap.

CONCLUSIONS: Both attachments were safe for cortical and spongy bone, while the cortical bone receives less Von Mises stress by up to 33% with the increased implant angulation.


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How to Cite

ElGabry HS, Yousief SA, Moubarak AH, Eltaftazani IA, El-Anwar M, El Zawahry M. 3D Finite Element Study on Incomplete Osseointegration: Locator Attachment versus Ball Attachment. Open Access Maced J Med Sci [Internet]. 2021 Feb. 28 [cited 2021 May 9];9(D):24-8. Available from: https://oamjms.eu/index.php/mjms/article/view/5680