Comparative analysis between titanium implants and polycrystalline ceramics in survival on fatigue and biomechanical behavior

• Grant number: 19/24903-6
• Support type: Scholarships in Brazil - Doctorate
• Effective date (Start): June 01, 2020
• Effective date (End): May 31, 2023
• Field of knowledge: Health Sciences - Dentistry - Dental Materials
• Principal researcher: Marco Antonio Bottino
• Grantee: Jefferson David Melo de Matos
• Home Institution: Instituto de Ciência e Tecnologia (ICT). Universidade Estadual Paulista (UNESP). Campus de São José dos Campos. São José dos Campos , SP, Brazil
• Associated scholarship(s): 21/11499-2 - Biomechanical behavior and fatigue survival of two: piece titanium and zirconia implants supporting zirconia single crowns, BE.EP.DR

Abstract

Characterize and evaluate the biomechanical behavior using the finite elemento method and fatigue strength of unitary implants in two different designs: titanium implants with zirconia abutments and zirconia implants with zirconia abutments. Materials and methods: 40 implants will be used, being 20 of commercially purê titanium (TZ) and 20 of zirconia (ZZ). The implants will present 4.1 mm of diameter and 10 mm length. For each implant will be fixed a zirconia abutment (PilaresSynOcta) with conic design 8° and internal frictional connection, installed with a torque of 35N.cm using a digital torque wrench. The torque will be confirmed within 10 minutes of abutment placement, at the beginning and end of the fatigue test. For surfasse microstructure characterization, SEM, EDS and XRD will be performed. For topographic characterization will be performed the analysis of crown vertical misfit and optical profilometry. All samples will be subjected to the fatigue survival test and will receive 2.000.000 cycles at 2 Hz with a stainless steel sphere (1,6 mm diameter), caccording to the parameters described in ISO 14801:2007, followed by fractographic analysis. The stress distribution will be analyzed by finite element method. The results will be discussed according to the literature. (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)

MELO DE MATOS, JEFFERSON DAVID; SCALZER LOPES, GUILHERME DA ROCHA; NOMURA NAKANO, LEONARDO JIRO; RAMOS, NATHALIA DE CARVALHO; LUCENA DE VASCONCELOS, JOHN EVERSONG; BOTTINO, MARCO ANTONIO; MENDES TRIBST, JOAO PAULO. iomechanical evaluation of 3-unit fixed partial dentures on monotype and two-piece zirconia dental implant. COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING, v. 25, n. 3 JUN 2021. Web of Science Citations: 2.