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Effect of bone quality and connection type of dental implants on stress distribution

Grant number: 15/20827-2
Support type:Regular Research Grants
Duration: April 01, 2016 - March 31, 2018
Field of knowledge:Health Sciences - Dentistry
Principal researcher:Joel Ferreira Santiago Junior
Grantee:Joel Ferreira Santiago Junior
Home Institution: Pró-Reitoria de Pesquisa e Pós-Graduação. Universidade do Sagrado Coração (USC). Bauru , SP, Brazil
Assoc. researchers:Eduardo Piza Pellizzer ; Fellippo Ramos Verri


This project aims to study the biomechanical behavior of implants with an external hexagon (EH) connections, internal hexagon (IH), Morse taper (MT) and the Platform Switching concept (PSW) in low-density bone (type IV). In the first step, seven three-dimensional models (M1-7) representing an implant-prosthesis in the molar region, which will be simulated using 3D finite-element method (FEM-3D); M1, M2 and M3: EH, IH and MT implants - 4 x 10 mm; M4, M5 and M6: EH, IH, and MT implants - 5 x 10 mm; M7: PSW implants - 5 x 10 mm. The computer simulation will be performed with CT recovery scans in InVesalius software and CADs Rhinoceros 4.0 and Solidworks 2011 software. After this, the models will be exported to the finite element program (FEMAP 11.0) to model the mesh, restricting conditions, contacts and axial (0º - 200N) and oblique (45º - 100N) load. The models will be analyzed with Nastram software and imported into FEMAP software for viewing the results in the form of stress maps for qualitative analysis and subsequent quantitative analysis (p<0.05). In a next step, two systematic reviews and meta-analyses will be developed, adopting the Cochrane Group model. The outcomes analyzed will be the survival of dental implants in low-density bone tissue in adult humans 1) without systemic compromise and 2) with systemic compromise (patients with osteoporosis). These results will allow the development of a protocol to enhance the survival rate of implants in low-density bone tissue. (AU)

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Scientific publications (4)
(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)
SANTIAGO JR, JOEL FERREIRA; LEMOS, CLEIDIEL APARECIDO ARAUJO; DE LUNA GOMES, JESSICA MARCELA; VERRI, FELLIPPO RAMOS; MORAES, SANDRA LUCIA DANTAS; PELLIZZER, EDUARDO PIZA. Quality Assessment of Systematic Reviews on Platform-Switching vs Platform-Matched Implants: An Overview. JOURNAL OF ORAL IMPLANTOLOGY, v. 46, n. 2, p. 153-162, APR 2020. Web of Science Citations: 0.
SANTIAGO JUNIOR, JOEL FERREIRA; BIGUETTI, CLAUDIA CRISTINA; MATSUMOTO, MARIZA AKEMI; KUDO, GUILHERME ABU HALAWA; PARRA DA SILVA, RAQUEL BARROSO; SARAIVA, PATRICIA PINTO; FAKHOURI, WALID D. Can Genetic Factors Compromise the Success of Dental Implants? A Systematic Review and Meta-Analysis. GENES, v. 9, n. 9 SEP 2018. Web of Science Citations: 1.
DE MEDEIROS, F. C. F. L.; KUDO, G. A. H.; LEME, B. G.; SARAIVA, P. P.; VERRI, F. R.; HONORIO, H. M.; PELLIZZER, E. P.; SANTIAGO JUNIOR, J. F. Dental implants in patients with osteoporosis: a systematic review with meta-analysis. International Journal of Oral and Maxillofacial Surgery, v. 47, n. 4, p. 480-491, APR 2018. Web of Science Citations: 19.
MINATEL, LURIAN; VERRI, FELLIPPO RAMOS; KUDO, GUILHERME ABU HALAWA; DE FARIA ALMEIDA, DANIEL AUGUSTO; DE SOUZA BATISTA, VICTOR EDUARDO; ARAUJO LEMOS, CLEIDIEL APARECIDO; PELLIZZER, EDUARDO PIZA; SANTIAGO JUNIOR, JOEL FERREIRA. Effect of different types of prosthetic platforms on stress-distribution in dental implant-supported prostheses. Materials Science & Engineering C-Materials for Biological Applications, v. 71, p. 35-42, FEB 1 2017. Web of Science Citations: 12.

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