Abstract
The objectives of this study were to characterize titanium (Ti) surfaces treated by ion implantation by immersion in oxygen plasma (O-PIII) at different temperatures, correlating these implanted layers with therapeutic effects and with osteogenesis, as well as the formation of monotypic biofilms microbial. The groups were divided into: a) Ti (pre-treatment) b) Ti O-PIII at 400 ° C. c) Ti O-PIII at 500 ° C. d) Ti O-PIII at 600 ° C. The properties and surface characteristics were evaluated according to the roughness, texture, corrosion resistance, formation of new phases and the identification of chemical compounds present. Cellular analyzes investigated cell interaction, viability, total protein content, alkaline phosphatase and quantification of mineralized nodules using MG-63 cells. The formation of monotypic microbial biofilms, including P. aeruginosa, S. aureus, S. mutans and C. albicans were evaluated. The increase in surface roughness, corrosion resistance and oxygen content, leading to the formation of TiO2-rutile with more intense peaks and in greater numbers according to the increase in the substrate temperature, ionic implanted Ti samples was observed. There was also a significant increase in cell viability, total protein production, alkaline phosphatase activity and formation of mineralization nodules for the group treated with O-PIII at 600ºC compared to other groups, in addition to a reduction of microorganisms in the groups treated with O- PIII. Therefore, treatment with O-PIII at 600ºC in Ti grade IV showed favorable results for its use.
Highlights
Titanium (Ti) stands out as a material of interest for orthopedics and dentistry due to a range of outstanding characteristics such as biocompatibility, easy manipulation, high corrosion resistance, high modulus of elasticity, accessible acquisition and affordability (Gimmel’farb, &Abrarov 1980, Thelen et al.,2004; Simdabe, 2014)
Our results demonstrated that O-plasma immersion ion implantation (PIII) treatment of Ti samples at 500oC and 600oC statistically reduced the amount of S. mutans compared to Ti and control groups
O-PIII treatment in Ti samples at different temperatures (400oC, 500oC and 600oC) promoted an increase in surface roughness, corrosion resistance, oxygen presence and formation of TiO2-rutile, as the temperature used in the treatment increased
Summary
Titanium (Ti) stands out as a material of interest for orthopedics and dentistry due to a range of outstanding characteristics such as biocompatibility, easy manipulation, high corrosion resistance, high modulus of elasticity, accessible acquisition and affordability (Gimmel’farb, &Abrarov 1980, Thelen et al.,2004; Simdabe, 2014). When Ti is exposed to atmospheric air, a thin passivating layer of native Ti oxide is formed, which facilitates biocompatibility (Yamagami et al.,2014). It can be rapidly destroyed by relative movements and friction between the implant and the tissue (Mandl et al, 2001). Long-term effects may cause distinct issues, such as loss of the implant itself, often resulting in prosthetic corrective surgeries. In this context, it is essential to evaluate interactions between osteoblastic cells and the biomaterial
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
