Stress analysis of a single prosthesis on a poorly positioned implant

Authors

DOI:

https://doi.org/10.33448/rsd-v10i11.19815

Keywords:

Dental implants; Finite Element Analysis; Prosthodontics.

Abstract

The mechanical positioning behavior of a mal-positioned implant was evaluated in the finite element method. Models were created in SolidWorks Professional 2013® software with a single implant rehabilitation. The following were analyzed: Control Group, crown aligned to the implant long axis; Experimental Group, crown shifted 3 mm mesial proximally to the implant axis. Compressive stresses in cortical and medullary bone, and Von Mises stresses in implants and components were evaluated. With 100 N occlusal loading at 5 points. The peak von Mises stresses in the prosthetic screw of the experimental group (138.45 MPa) were 43.60% higher compared to the control group (96.41 MPa). The stresses in the prosthetic pillar were localized in the abutment region and the experimental group showed (875.63 MPa), 28% higher than the control group (683.88 MPa). Regarding the implant, the maximum stress peaks were located in the implant platform and the experimental group showed stress values of (1081.4) MPa and was 26.42% higher than the control 855.39 MPa. The cortical bone tissue of the experimental group showed shear stress values 10.81% higher than the control. The stress values were 151.36 MPa for the experimental group and (136.59 Mpa) for the control. The medullary bone showed shear stress (8.31 MPa) and was 12.29% higher than the control (7.40 MPa). A maximum peak was obtained in the cervical region of the medullary bone, adjacent to the cortical bone. The experimental group with a mal-positioned implant showed the highest maximum stresses for all simulated prosthetic components.

Author Biographies

William Cunha Brandt, Universidade Santo Amaro

Possui graduação em Odontologia (2004), além de Mestrado (2007) e Doutorado (2010) em Materiais Dentários e aperfeiçoamento em Endodontia Clínica (2007) pela Faculdade de Odontologia de Piracicaba (FOP) - Universidade Estadual de Campinas (UNICAMP). Trabalhou como professor na pós graduação de Prótese Dentária da Universidade de Taubaté - UNITAU. Atualmente é professor da pós-graduação em Implantodontia da Universidade de Santo Amaro - UNISA. Possui experiência na área de Odontologia, com ênfase em pesquisa sobre Materiais e Técnicas Odontológicas, atuando principalmente nos seguintes temas: Polímeros odontológicos, foto-ativação, cerâmicas odontológicas e testes mecânicos.

Letícia Cristina Cidreira Boaro, Universidade Santo Amaro

Possui graduação em Odontologia pela Universidade de São Paulo (2006) e mestrado (2008) e Doutorado (2011) em Odontologia (Materiais Dentários) pela Universidade de São Paulo. Tem experiência na área de Odontologia, com ênfase em Materiais Odontológicos, atuando principalmente nos seguintes temas: caracterização mecânica de compósitos, análises de qualidade de interface de restaurações de compósitos e tensão de polimerização.

Milton Edson Miranda, Faculdade São Leopoldo Mandic

Graduado em Odontologia pela Universidade Federal de Minas Gerais (1969), Mestrado( Ohio State University-USA -1983) e Doutorado( Universidade de São Paulo-S.P.-2001). Atualmente leciona no Curso de Pós--Graduação do Centro de Pesquisas Odontológicas São Leopoldo Mandic(www.slmandic.edu.br ) e trabalha como profissional liberal.(www.memiranda.com.br).

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Published

11/09/2021

How to Cite

REIS, F. C. dos S.; BRANDT, W. C. .; BOARO, L. C. C. .; MIRANDA, M. E. Stress analysis of a single prosthesis on a poorly positioned implant. Research, Society and Development, [S. l.], v. 10, n. 11, p. e579101119815, 2021. DOI: 10.33448/rsd-v10i11.19815. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/19815. Acesso em: 22 nov. 2024.

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Health Sciences