Produção Nacional
Revisado por pares
Cortical Bone Stress Distribution in Mandibles with Different Configurations Restored with Prefabricated Bar-Prosthesis Protocol: A Three-Dimensional Finite-Element Analysis
2010; Wiley; Volume: 20; Issue: 1 Linguagem: Inglês
10.1111/j.1532-849x.2010.00656.x
ISSN1532-849X
AutoresÉrika Oliveira de Almeida, Eduardo Passos Rocha, Wirley Gonçalves Assunção, Amílcar Chagas Freitas Júnior, Rodolfo Bruniera Anchieta,
Tópico(s)Dental Radiography and Imaging
ResumoJournal of ProsthodonticsVolume 20, Issue 1 p. 29-34 Cortical Bone Stress Distribution in Mandibles with Different Configurations Restored with Prefabricated Bar-Prosthesis Protocol: A Three-Dimensional Finite-Element Analysis Erika Oliveira de Almeida DDS, MS, Erika Oliveira de Almeida DDS, MS PhD Student in Prosthodontics, Department of Dental Materials and Prosthodontics, Aracatuba School of Dentistry, UNESP—Universidade Estadual Paulista, BrazilSearch for more papers by this authorEduardo Passos Rocha DDS, MS, PhD, Eduardo Passos Rocha DDS, MS, PhD Associate Professor, Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, UNESP—Universidade Estadual Paulista, BrazilSearch for more papers by this authorWirley Gonçalves Assunção DDS, MS, PhD, Wirley Gonçalves Assunção DDS, MS, PhD Associate Professor, Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, UNESP—Universidade Estadual Paulista, BrazilSearch for more papers by this authorAmílcar Chagas Freitas Júnior DDS, MS, Amílcar Chagas Freitas Júnior DDS, MS PhD Student in Prosthodontics, Department of Dental Materials and Prosthodontics, Aracatuba School of Dentistry, UNESP—Universidade Estadual Paulista, BrazilSearch for more papers by this authorRodolfo Bruniera Anchieta DDS, Rodolfo Bruniera Anchieta DDS PhD Student in Prosthodontics, Department of Dental Materials and Prosthodontics, Aracatuba School of Dentistry, UNESP—Universidade Estadual Paulista, BrazilSearch for more papers by this author Erika Oliveira de Almeida DDS, MS, Erika Oliveira de Almeida DDS, MS PhD Student in Prosthodontics, Department of Dental Materials and Prosthodontics, Aracatuba School of Dentistry, UNESP—Universidade Estadual Paulista, BrazilSearch for more papers by this authorEduardo Passos Rocha DDS, MS, PhD, Eduardo Passos Rocha DDS, MS, PhD Associate Professor, Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, UNESP—Universidade Estadual Paulista, BrazilSearch for more papers by this authorWirley Gonçalves Assunção DDS, MS, PhD, Wirley Gonçalves Assunção DDS, MS, PhD Associate Professor, Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, UNESP—Universidade Estadual Paulista, BrazilSearch for more papers by this authorAmílcar Chagas Freitas Júnior DDS, MS, Amílcar Chagas Freitas Júnior DDS, MS PhD Student in Prosthodontics, Department of Dental Materials and Prosthodontics, Aracatuba School of Dentistry, UNESP—Universidade Estadual Paulista, BrazilSearch for more papers by this authorRodolfo Bruniera Anchieta DDS, Rodolfo Bruniera Anchieta DDS PhD Student in Prosthodontics, Department of Dental Materials and Prosthodontics, Aracatuba School of Dentistry, UNESP—Universidade Estadual Paulista, BrazilSearch for more papers by this author First published: 18 November 2010 https://doi.org/10.1111/j.1532-849X.2010.00656.xCitations: 11 Correspondence Eduardo Passos Rocha, UNESP, Departamento de Materiais Odontológicos e Prótese: Rua José Bonifácio, 1193, Araçatuba- SP, cep: 16015-050, Brazil. E-mail: eduardo_rocha@foa.unesp.br This study was supported by the Sao Paulo Research Foundation (FAPESP—Brazil, # 2008/00209-9). Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract Purpose: To evaluate stress distribution in different horizontal mandibular arch formats restored by protocol-type prostheses using three-dimensional finite element analysis (3D-FEA). Materials and Methods: A representative model (M) of a completely edentulous mandible restored with a prefabricated bar using four interforaminal implants was created using SolidWorks 2010 software (Inovart, São Paulo, Brazil) and analyzed by Ansys Workbench 10.0 (Swanson Analysis Inc., Houston, PA) to obtain the stress fields. Three mandibular arch sizes were considered for analysis, regular (M), small (MS), and large (ML). Three unilateral posterior loads (L) (150 N) were used: perpendicular to the prefabricated bar (L1); 30° oblique in a buccolingual direction (L2); 30° oblique in a lingual-buccal direction (L3). The maximum and minimum principal stresses (σmax, σmin), the equivalent von Mises (σvM), and the maximum principal strain (σmax) were obtained for type I (M.I) and type II (M.II) cortical bones. Results: Tensile stress was more evident than compression stress in type I and II bone; however, type II bone showed lower stress values. The L2 condition showed highest values for all parameters (σvM, σmax, σmin, ɛmax). The σvM was highest for the large and small mandibular arches. Conclusion: The large arch model had a higher influence on σmax values than did the other formats, mainly for type I bone. Vertical and buccolingual loads showed considerable influence on both σmax and σmin stresses. Citing Literature Volume20, Issue1January 2011Pages 29-34 RelatedInformation
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