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Mechanical analysis of prosthetic bars and dental implants in 3 and 4 implant-supported overdenture protocols using finite element analysis.
Bassi-Junior, Luiz; Oliveira de Souza Silva, Rafael; Dias Dos Santos, Victor Hugo; da Rocha Lourenço, Abner; Trevizoli, Paulo Vinicius; Gaêta-Araujo, Hugo; Queiroz, Polyane Mazucatto; Gottardo, Vilmar Divanir.
Afiliação
  • Bassi-Junior L; Department of Dentistry, Area of Implantology, Ingá Center University, Maringa, Brazil.
  • Oliveira de Souza Silva R; Department of Dentistry, Area of Implantology, Ingá Center University, Maringa, Brazil.
  • Dias Dos Santos VH; Department of Mechanical Engineering, Ingá University Center, Maringa, Brazil.
  • da Rocha Lourenço A; Department of Mechanical Engineering, Ingá University Center, Maringa, Brazil.
  • Trevizoli PV; Department of Mechanical Engineering, Ingá University Center, Maringa, Brazil.
  • Gaêta-Araujo H; Department of Oral Diagnosis, Area of Oral Radiology, Piracicaba Dental School, Sao Paulo, Brazil.
  • Queiroz PM; Department of Dentistry, Area of Implantology, Ingá Center University, Maringa, Brazil.
  • Gottardo VD; Department of Dentistry, Area of Implantology, Ingá Center University, Maringa, Brazil.
J Oral Biol Craniofac Res ; 11(3): 438-441, 2021.
Article em En | MEDLINE | ID: mdl-34040957
In some clinical situations, the installation of four or more dental implants may be infeasible. Therefore, the installation of protocol-type prostheses with only three implants may be necessary. The mechanical failures can hinder the success of the rehabilitation treatment. OBJECTIVE: To evaluate and compare the mechanical stress of the metallic prosthetic bar when installed over protocol-type prostheses of three and four implants, and to evaluate the stress on the dental implants. METHODOLOGY: Two three-dimensional human jaw models were created. In one model, four dental implants (P4) were designed and in the other model three dental implants (P3) were designed. In both models, according to the arrangement of the dental implants, prosthetic bars were designed. In a finite element analysis software, compressive forces were applied to the ends of both prosthetic bars, simulating the force application during mastication. Tension and stress dissipation were analyzed on the prosthetic bar and dental implants. RESULTS: Both P4 and P3 protocol-type prostheses supported the force efficiently without breaking the bar or the implants. Force dissipation along the bar was more homogeneous in the P3 prosthetic bar than in P4. In addition, P3 implants received a higher concentration of stress in relation to P4 implants. CONCLUSIONS: Prosthetic bars and dental implants withstand the stress of load application in both four and three implant protocol-type prostheses. Three-implants protocol showed more satisfactory force dissipation than the four-implant protocol.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Guideline Idioma: En Revista: J Oral Biol Craniofac Res Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Holanda
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Guideline Idioma: En Revista: J Oral Biol Craniofac Res Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Holanda