Effect of chemical and thermochemical treatments on the surface properties of commercially pure titanium

• Published in: Matéria Vol. 25; no. 4
• Main Authors: Cruz, Alejandro López, Ramos, Adrian Paz, Pazos, Leonardo M., Parodi, María Belén, Ybarra, Gabriel Omar, Ruíz, Jesús E. González
• Format: Journal Article
• Language: English; Portuguese
• Published: Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro; em cooperação com a Associação Brasileira do Hidrogênio, ABH2 2020
• Subjects: CONSTRUCTION & BUILDING TECHNOLOGY; MATERIALS SCIENCE, MULTIDISCIPLINARY; METALLURGY & METALLURGICAL ENGINEERING; Titanium; hydrogen peroxide treatment; alkali treatment; thermochemical treatment; surface modification
• ISSN: 1517-7076; 1517-7076
• DOI: 10.1590/s1517-707620200004.1146

ABSTRACT Chemical and physical methods have been generally used for modifying the surface of titanium implants with the aim of achieving better osseointegration. In this work, an evaluation of the effect of different chemicals and thermochemical treatments on the surface modification of titanium was carried out. Plates of commercially pure titanium were polished and treated with four different methods. Scanning electron microscopy, atomic force microscopy, energy-dispersive X-ray spectroscopy, infrared spectroscopy, X-ray diffraction and drop shape analysis were used to characterize the modified titanium surface. Our results showed that the AEPTTT surface exhibited the highest Ra values followed by AEAT, AEPT, polished Ti and AE samples. In addition, the AEAT and AEPTTT treatments developed the largest surface area, while the AE treatment produced the lowest surface area. Furthermore, the AEAT treatment created the most hydrophilic surface, which is known to positively affect the osseointegration rate of dental implants.