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Stress analysis on splinted implant-supported prostheses, with variation of the prosthetic connection and implant inclination. Non-linear three-dimensional finite element study.

Grant number: 11/23884-6
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): March 01, 2012
Effective date (End): April 05, 2015
Field of knowledge:Health Sciences - Dentistry - Dental Clinics
Principal Investigator:Eduardo Piza Pellizzer
Grantee:Daniel Augusto de Faria Almeida
Host Institution: Faculdade de Odontologia (FOA). Universidade Estadual Paulista (UNESP). Campus de Araçatuba. Araçatuba , SP, Brazil


The aim of this study is to analyze the stress distribution on splinted implant-supported prostheses varying prosthetic connection and implant angulation by means of the three-dimensional nonlinear finite element method. 18 three-dimensional models will be fabricated using the graphical modeling softwares SolidWorks 2010, Rhinoceros 4.0 and InVesalius. Each model will be composed by a bone block from the maxillary molar region (cortical and cancellous bone) Type IV and three dental implants (Conexão Sistemas de Prótese Ltda., Sao Paulo, Brazil), external-hexagon or morse taper implant (4.0 mm) of different lengths (8.5 mm and 10.00 mm), with metal-ceramic crown and 20º cusp inclination. The three-dimensional designs will be exported to the pre and post processing software, FEMAP 10.2, for mesh generation and application of an axial (200N) and oblique (100N) load, then, the analysis will be performed by the finite element software, NEiNastran 9.2. The results will be visualized through von Mises stress and Maximum Principal Stress maps in each individual model proposed.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DE FARIA ALMEIDA, DANIEL A.; VERRI, FELLIPPO R.; LEMOS, CLEIDIEL A. A.; DE SOUZA BATISTA, VICTOR E.; SANTIAGO JUNIOR, JOEL F.; ROSA, CLEBER D. D. R. D.; NORITOMI, PEDRO Y.; PELLIZZER, EDUARDO P.. Effect of Splinting of Tilted External Hexagon Implants on 3-Unit Implant-Supported Prostheses in the Posterior Maxilla: A 3D Finite Element Analysis. JOURNAL OF PROSTHODONTICS-IMPLANT ESTHETIC AND RECONSTRUCTIVE DENTISTRY, . (11/23884-6, 09/16164-7)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
ALMEIDA, Daniel Augusto de Faria. Análise das tensões em próteses implantossuportadas esplintadas, variando o tipo de conexão protética e a inclinação do implante: estudo pelo método dos elementos finitos tridimensionais não linear. 2015. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Odontologia. Araçatuba Araçatuba.

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