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Peri-implant bone strains caused by micromovement of cylindrical and conical implants. A three-dimensional finite element analysis.

Grant number: 13/08031-2
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): September 01, 2013
Effective date (End): August 31, 2014
Field of knowledge:Health Sciences - Dentistry - Dental Materials
Principal researcher:Mateus Bertolini Fernandes dos Santos
Grantee:Gabriel de Oliveira Meloto
Home Institution: Faculdade de Odontologia de Piracicaba (FOP). Universidade Estadual de Campinas (UNICAMP). Piracicaba , SP, Brazil


Micromovement is a key factor to the success of osseointegration of dental implants. It has been suggested that micromovements of 150 micron can be supported by peri-implant bone tissue without the formation of fibrous tissue at the bone/implant interface. This study aims to evaluate the stress and strains on the peri-implant bone tissue when micromovements occurs in conical and cylindrical implants through finite element analysis. Geometric models will be made using a 3-D modeling software (SolidWorks 2010, USA) which will be exported to an specific software for the finite element analysis (ANSYS Workbench 12, USA). Micromovements (50, 150, e 250 ¼m) will be simulated in clockwise and counterclockwise directions. All the analyses will evaluate the von Mises, Maximum Principal Stress and microstrain on the peri-implant bone tissue. Results will be presented in a qualitative way through figures with the stress distribution in different color gradients, and quantitatively by reading the stress in certain regions of the models.

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)
FERNANDES DOS SANTOS, MATEUS BERTOLINI; MELOTO, GABRIEL DE OLIVEIRA; BACCHI, ATAIS; CORRER-SOBRINHO, LOURENCO. Stress distribution in cylindrical and conical implants under rotational micromovement with different boundary conditions and bone properties: 3-D FEA. COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING, v. 20, n. 8, p. 893-900, 2017. Web of Science Citations: 5.

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