Ion Release from Casts of Commercially Pure Titanium in Mixed Solutions of Organic Acids Contained in Human Saliva

2008 ◽  
Vol 52 (4) ◽  
pp. 501-506 ◽  
Author(s):  
Teruhisa Hirayama ◽  
Marie Koike ◽  
Tadafumi Kurogi ◽  
Akiko Shibata ◽  
Shigeru Nakamura ◽  
...  
Keyword(s):  
Organic Acids ◽  
Pure Titanium ◽  
Human Saliva ◽  
Commercially Pure Titanium ◽  
Ion Release ◽  
Commercially Pure ◽  
Mixed Solutions

scholarly journals Effect of denture cleansers on metal ion release and surface roughness of denture base materials

2012 ◽  
Vol 23 (4) ◽  
pp. 387-393 ◽  
Author(s):  
Letícia Resende Davi ◽  
Daniela Nair Borges Felipucci ◽  
Raphael Freitas de Souza ◽  
Osvaldo Luiz Bezzon ◽  
Cláudia Helena Lovato-Silva ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Metal Ion ◽  
Pure Titanium ◽  
Acrylic Resin ◽  
Commercially Pure Titanium ◽  
Ion Release ◽  
Nickel Chromium ◽  
Commercially Pure ◽  
Metal Ion Release ◽  
Mechanical Methods

Chemical disinfectants are usually associated with mechanical methods to remove stains and reduce biofilm formation. This study evaluated the effect of disinfectants on release of metal ions and surface roughness of commercially pure titanium, metal alloys, and heat-polymerized acrylic resin, simulating 180 immersion trials. Disk-shaped specimens were fabricated with commercially pure titanium (Tritan), nickel-chromium-molybdenum-titanium (Vi-Star), nickel-chromium (Fit Cast-SB Plus), and nickel-chromium-beryllium (Fit Cast-V) alloys. Each cast disk was invested in the flasks, incorporating the metal disk to the heat-polymerized acrylic resin. The specimens (n=5) were immersed in these solutions: sodium hypochlorite 0.05%, Periogard, Cepacol, Corega Tabs, Medical Interporous, and Polident. Deionized water was used as a control. The quantitative analysis of metal ion release was performed using inductively coupled plasma mass spectrometry (ELAN DRC II). A surface analyzer (Surftest SJ-201P) was used to measure the surface roughness (µm). Data were recorded before and after the immersions and evaluated by two-way ANOVA and Tukey's test (α=0.05). The nickel release proved most significant with the Vi-Star and Fit Cast-V alloys after immersion in Medical Interporous. There was a significant difference in surface roughness of the resin (p=0.011) after immersion. Cepacol caused significantly higher resin roughness. The immersion products had no influence on metal roughness (p=0.388). It could be concluded that the tested alloys can be considered safe for removable denture fabrication, but disinfectant solutions as Cepacol and Medical Interporous tablet for daily denture immersion should be used with caution because it caused greater resin surface roughness and greater ion release, respectively.

scholarly journals Effect of the pH of artificial saliva on ion release from commercially pure titanium

2013 ◽  
pp. 207-215 ◽  
Author(s):  
Ivana Dimic ◽  
Ivana Cvijovic-Alagic ◽  
Marica Rakin ◽  
Aleksandra Peric-Grujic ◽  
Marko Rakin ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Ph Value ◽  
Artificial Saliva ◽  
Pure Titanium ◽  
Mechanical Resistance ◽  
Commercially Pure Titanium ◽  
Ion Release ◽  
Inductively Coupled ◽  
Commercially Pure ◽  
Plasma Mass Spectrometry

Due to their excellent characteristics, such as chemical inertness, mechanical resistance, low Young?s modulus, high corrosion resistance, and outstanding biocompatibility, titanium and its alloys are the most used metallic materials for biomedical applications. In dental practice, these materials have demonstrated success as biomedical devices which are used for repairing and replacing failed hard tissue. However, the oral cavity is constantly subjected to the changes in the pH value changes and such an environment is strongly corrosive for titanium dental implants. The objective of this study was to examine ion release from commercially pure titanium (cpTi) in artificial saliva with different pH values (4.0, 5.5 and 7.5). The concentrations of released titanium ions were determined after 1, 3 and 6 weeks using Inductively Coupled Plasma - Mass Spectrometry. The results indicate that the ion release from commercially pure titanium in the artificial saliva is dependent both on the pH of artificial saliva and duration of immersion.

RMI 0.2% Pd

Alloy Digest ◽  
1979 ◽  
Vol 28 (12) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Crevice Corrosion ◽  
Elevated Temperatures ◽  
Pure Titanium ◽  
Heat Treating ◽  
Low Ph ◽  
Commercially Pure Titanium ◽  
Bend Strength ◽  
Commercially Pure ◽  
Minimum Yield

Abstract RMI 0.2% Pd is a grade of commercially pure titanium to which up to 0.2% palladium has been added. It has a guaranteed minimum yield strength of 40,000 psi with good ductility and formability. It is recommended for corrosion resistance in the chemical industry and other places where the environment is mildly reducing or varies between oxidizing and reducing. The alloy has improved resistance to crevice corrosion at low pH and elevated temperatures. This datasheet provides information on composition, physical properties, elasticity, tensile properties, and bend strength. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ti-74. Producer or source: RMI Company.

UPM CP TITANIUM GRADE 3 (UNS R50550)

Alloy Digest ◽  
2020 ◽  
Vol 69 (6) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Pure Titanium ◽  
Heat Treating ◽  
Commercially Pure Titanium ◽  
Commercially Pure ◽  
Continuous Service ◽  
Pure Grade ◽  
Grade 3 ◽  
Titanium Grade ◽  
Design Stress

Abstract UPM CP Titanium Grade 3 (UNS R50550) is an unalloyed commercially pure titanium that exhibits moderate strength (higher strength than that of Titanium Grade 2), along with excellent formability and corrosion resistance. It offers the highest ASME allowable design stress of any commercially pure grade of titanium, and can be used in continuous service up to 425 °C (800 °F) and in intermittent service up to 540 °C (1000 °F). This datasheet provides information on composition, physical properties, and elasticity. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ti-167. Producer or source: United Performance Metals.

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