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Biomechanical analysis of prosthetic options for rehabilitation of posterior maxillary area with three-unit fixed prosthesis supported by implants

Grant number: 15/07383-8
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): July 01, 2015
Effective date (End): February 05, 2018
Field of knowledge:Health Sciences - Dentistry - Dental Clinics
Cooperation agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal researcher:Eduardo Piza Pellizzer
Grantee:Victor Eduardo de Souza Batista
Home Institution: Faculdade de Odontologia (FOA). Universidade Estadual Paulista (UNESP). Campus de Araçatuba. Araçatuba , SP, Brazil


The aim of this study will be to analyze the biomechanical behavior of three-unit fixed prosthesis varying the splinting, length, diameter, implant position, and the number of implant (supported by two or three implants) by 3D finite element methods. For this study will be simulated twenty-six 3-D models with aid of CAD softwares Rhinoceros 4.0, Solidworks 2010 and InVesalius software that will be used to bone tissue reconstruction. Each model will represent a posterior maxillary bone section simulating type IV bone (cortical and spongy), with presence of two or three implants (Conexão Sistemas de Prótese Ltda., São Paulo, Brasil) external hexagonal implants, with 4,0mm x 10,0 mm, supporting 3-units fixed prosthesis, in different clinical situations (varyng the factors splinting, length, diameter, and implant position). The 3D models will be exported to the software FEMAP 10.2 for pre- and post- processing and mesh generation besides load definition (400N vertical and 200 N oblique (45°)) applied in the internal area of the crown cusp. After, the models will be solved by NeiNastran 11.0 finite element software and the results will be visualized by maximum principal stress and microstrain maps to cortical bone tissue and Von Mises stress map to fixation screws. Besides, the maps might be individualized as required and necessary for each proposed model. (AU)

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 SOUZA BATISTA, VICTOR E.; VERRI, FELLIPPO R.; LEMOS, CLEIDIEL A. A.; CRUZ, RONALDO S.; OLIVEIRA, HISKELL F. F.; GOMES, JESSICA M. L.; PELLIZZER, EDUARDO P. Should the restoration of adjacent implants be splinted or nonsplinted? A systematic review and meta-analysis. JOURNAL OF PROSTHETIC DENTISTRY, v. 121, n. 1, p. 41-51, JAN 2019. Web of Science Citations: 2.
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
BATISTA, Victor Eduardo de Souza. Análise biomecânica de opções protéticas para reabilitação de maxila posterior com próteses implantossuportadas de três elementos. Estudo pelo método dos elementos finitos 3D. 2018. 225 f. Doctoral Thesis - Universidade Estadual Paulista (Unesp) Faculdade de Odontologia.

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