Beta-titanium alloys, the third generation of biomaterials for implantology: comparative analysis of physicochemical and mechanical properties between Ti-13Nb-13Zr and Ti-6Al-4V

• Grant number: 20/05272-2
• Support type: Scholarships in Brazil - Master
• Effective date (Start): November 01, 2020
• Effective date (End): December 31, 2021
• Field of knowledge: Health Sciences - Dentistry - Dental Materials
• Principal researcher: Andréa Cândido dos Reis
• Grantee: Juliana Dias Corpa Tardelli
• Home Institution: Faculdade de Odontologia de Ribeirão Preto (FORP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil

Abstract

The chemical biocompatibility of Ti alloys is essential since the release of metal ions from the implant can cause peri-implant inflammation, bone loss, negatively affect the mechanical properties and even its loss. The objective of the present study will be to compare in vitro the physical-chemical and mechanical properties between Ti-13Nb-13Zr and Ti-6Al-4V obtained by turning and additive manufacturing. For this, 40 discs will be used, with dimensions of Ø 5.0 mm x 1 mm thick (n = 10): G1: Ti-13Nb-13Zr (machined), G2: Ti-6Al-4V (machined), G3: Ti-13Nb-13Zr (additive manufacture) and G4: Ti-6Al-4V (additive manufacture). The disks will be analyzed by scanning electron microscopy (SEM), dispersive energy spectroscopy (EDS), x-ray diffraction (DRX), wettability, free surface energy, surface roughness, by means of laser confocal microscopy, Vickers microhardness (Stiefelmayer microdurometer) and elasticity module (SONELASTIC®). The results obtained will be submitted to parametric or non-parametric tests according to the data distribution (± = 0.05). (AU)