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Three-Dimensional Finite Element Analysis of Stress Distribution in Zirconia and Titanium Dental Implants.
Lopez, Camilo Andres Villabona; Vasco, Marco Antônio Amorin; Ruales, Edwin; Bedoya, Karin Apaza; Benfatti, Cesar Magalhaes; Bezzon, Osvaldo Luis; Deliberador, Tatiana Miranda.
Afiliação
  • Lopez CAV; 1 Department of Dentistry, Santo Tomás University, Bucaramanga, Santander, Colombia.
  • Vasco MAA; 2 Faculty of Dentistry, SLMANDIC, Curitiba, PR, Brazil.
  • Ruales E; 3 Department of Oral Rehabilitation, University of São Paulo, Ribeirao Preto, Sao Paulo, Brazil.
  • Bedoya KA; 4 Department of Bioengineering, University of Zaragoza, Zaragoza, Spain.
  • Benfatti CM; 5 Center for Education and Research on Dental Implants (CEPID), Department of Implantology, Federal University of Santa Cataria, Florianópolis, Brazil.
  • Bezzon OL; 5 Center for Education and Research on Dental Implants (CEPID), Department of Implantology, Federal University of Santa Cataria, Florianópolis, Brazil.
  • Deliberador TM; 5 Center for Education and Research on Dental Implants (CEPID), Department of Implantology, Federal University of Santa Cataria, Florianópolis, Brazil.
J Oral Implantol ; 44(6): 409-415, 2018 Dec.
Article em En | MEDLINE | ID: mdl-29763360
Zirconia has been presented as an alternative biomaterial to titanium, commercially presented as a single-body implant and/or as an abutment, demonstrating clinically biocompatible favorable results in white and rose esthetics. However, the number of long-term in vivo studies and mechanical tests evaluating the response of stress distribution compared with titanium implants is still limited. The aim of the study was to compare the principal peak stresses in the peri-implant bone around titanium and zirconia implants using the finite element method. Four groups of 3-dimensional models were constructed for the tests: G1, external hexagon titanium implant with a zirconia abutment; G2, zirconia implant with a zirconia abutment; G3, single-body titanium implant; and G4, single-body zirconia implant. Axial and oblique loads of 100 N at 45° were simulated in the prosthetic crown. The bone results showed that the peak stresses decreased by 12% in zirconia implants with 2 parts for axial load and 30% for the oblique load. In single-body implants, the peak stresses decreased 12% in the axial load and 34% in the oblique load when a zirconia implant was used compared with a titanium implant. Although the stress values in megapascals are similar, it can be concluded that the zirconia implants decrease the stress peaks at the peri-implant bone area around the implant platform when compared with titanium implants.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Titânio / Zircônio / Implantes Dentários / Análise do Estresse Dentário Idioma: En Revista: J Oral Implantol Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Colômbia País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Titânio / Zircônio / Implantes Dentários / Análise do Estresse Dentário Idioma: En Revista: J Oral Implantol Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Colômbia País de publicação: Estados Unidos