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Influence of Different Implants on the Biomechanical Behavior of a Tooth-Implant Fixed Partial Dentures: A Three-Dimensional Finite Element Analysis.
Lencioni, Karina Albino; Noritomi, Pedro Yoshito; Macedo, Ana Paula; Ribeiro, Ricardo Faria; Pereira, de Almeida Rossana.
Afiliação
  • Lencioni KA; Department of Dental Materials and Prosthodontics, Dental School of Ribeirao Preto, University of Sao Paulo (USP), Ribeirão Preto, SP, Brazil.
  • Noritomi PY; Renato Archer Information Technology Center (CTI), Campinas, SP, Brazil.
  • Macedo AP; Department of Dental Materials and Prosthodontics, Dental School of Ribeirao Preto, University of Sao Paulo (USP), Ribeirão Preto, SP, Brazil.
  • Ribeiro RF; Department of Dental Materials and Prosthodontics, Dental School of Ribeirao Preto, University of Sao Paulo (USP), Ribeirão Preto, SP, Brazil.
  • Pereira AR; Department of Dental Materials and Prosthodontics, Dental School of Ribeirao Preto, University of Sao Paulo (USP), Ribeirão Preto, SP, Brazil.
J Oral Implantol ; 46(1): 27-34, 2020 Feb 01.
Article em En | MEDLINE | ID: mdl-31647692
This study analyzed the biomechanical behavior of rigid and nonrigid tooth-implant supported fixed partial dentures. Different implants were used to observe the load distribution over teeth, implants, and adjacent bone using three-dimensional finite element analysis. A simulation of tooth loss of the first and second right molars was created with an implant placed in the second right molar and a prepared tooth with simulated periodontal ligament (PDL) in the second right premolar. Configurations of two types of implants and their respective abutments-external hexagon (EX) and Morse taper (MT)-were transformed into a 3D format. Metal-ceramic fixed partial dentures were constructed with rigid and nonrigid connections. Mesh generation and data processing were performed on the 3D finite element analysis (FEA) results. Static loading of 50 N (premolar) and 100 N (implant) were applied. When an EX implant was used, with a rigid or nonrigid connection, there was intrusion of the tooth in the distal direction with flexion of the periodontal ligament. Tooth intrusion did not occur when the MT implant was used independent of a rigid or nonrigid connection. The rigid or nonrigid connection resulted in a higher incidence of compressive forces at the cortical bone as well as stress in the abutment/pontic area, regardless of whether EX or MT implants were used. MT implants have a superior biomechanical performance in tooth-implant supported fixed partial dentures. This prevents intrusion of the tooth independent of the connection. Both types of implants studied caused a greater tendency of compressive forces at the crestal area.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Implantes Dentários Idioma: En Revista: J Oral Implantol Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Brasil 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: Implantes Dentários Idioma: En Revista: J Oral Implantol Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos