Mechanical response at peri-implant mandibular bone for variation of pore characteristics of implants: A Finite Element Study

• Autorzy: Sarkar Sulagna , Sahu Tikeshwar Prasad , Datta Arijit , Chandra Nimesh , Chakraborty Arindam , Datta Pallab , Majumder Santanu , Chowdhury Amit Roy

Identyfikatory

DOI

10.5277/ABB-01294-2019-02

• Języki publikacji: EN

Abstrakty

EN

In this paper, the mechanical response of generic dental implants having calculated porosities with varying pore-sizes has been evaluated. The purpose of this study was to compare the developed stress-strain of designed porous implants (i.e., stress at the implant and strain at the peri-implant bone) with that of the non-porous implant. Methods: 3D model of a mandible was prepared from CT scan data and nine generic dental implant models have been designed having 10%, 20%, and 30% porosity with 500, 700, and 900 micron pore size along with a non-porous model for carrying out FE analyses. First, failure analyses of implants, under a biting force of 250 N have been performed. Next, the remaining implants have been further evaluated under average compressive chewing load of 100 N, for mechanical responses at bone-implant interface. Results: Von Mises strain at the peri-implant mandibular bone increases with the increase in percentage porosity of the implant material and maximum implant stress remained much below the yield stress level. Conclusion: Implant stiffness and compressive strength vary as a function of porosity and pore size. Strain obtained on the peri-implant bone is sufficient enough to facilitate better bone growth with the 700 micron pore size and 30% porosity, thus reducing the effect of stress shielding.

Słowa kluczowe

EN

porous dental implant; pore size; percentage porosity; bone-implant interface; finite element analysis; stress and strain

PL

implant stomatologiczny; uszczelnianie; FEM

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2019
• Tom: Vol. 21, no. 2
• Strony: 83--93
• Opis fizyczny: Bibliogr. 24 poz., rys., tab., wykr.

Twórcy

autor

Sarkar Sulagna

• Department of Metallurgical and Material Engineering, Jadavpur University, India

autor

Sahu Tikeshwar Prasad

• Department of Aerospace Engineering and Applied Mechanics

autor

Datta Arijit

• Department of Aerospace Engineering and Applied Mechanics, Indian Institute of Engineering Science and Technology, Shibpur, India

autor

Chandra Nimesh

• Department of Aerospace Engineering and Applied Mechanics, Indian Institute of Engineering Science and Technology, Shibpur, India

autor

Chakraborty Arindam

• Department of Aerospace Engineering and Applied Mechanics, Indian Institute of Engineering Science and Technology, Shibpur, India

autor

Datta Pallab

• Centre for Healthcare Science and Technology, Indian Institute of Engineering Science and Technology, Shibpur, India

autor

Majumder Santanu

• Department of Aerospace Engineering and Applied Mechanics, Indian Institute of Engineering Science and Technology, Shibpur, India

autor

Chowdhury Amit Roy

• Department of Aerospace Engineering and Applied Mechanics, Indian Institute of Engineering Science and Technology, Shibpur, India

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).