Osseointegration of hydroxyapatite-coated, polyethylene-intruded and uncoated, sandblastered pure titanium implants in an infected implantation site. An experimental investigation in miniature pigs

1995 ◽  
Vol 5 (1) ◽  
pp. 59-63 ◽  
Author(s):  
A. Wilke ◽  
J. Orth ◽  
M. Kraft ◽  
P. Griss
Keyword(s):  
Experimental Investigation ◽  
Pure Titanium ◽  
Titanium Implants ◽  
Implantation Site ◽  
Miniature Pigs

scholarly journals AntibacterialTiO2Coating Incorporating Silver Nanoparticles by Microarc Oxidation and Ion Implantation

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Peng Zhang ◽  
Zhiguo Zhang ◽  
Wei Li
Keyword(s):  
Antibacterial Activity ◽  
Ion Implantation ◽  
Bacterial Colonization ◽  
Pure Titanium ◽  
Microarc Oxidation ◽  
Optimal Strategies ◽  
Titanium Implants ◽  
Silver Ion ◽  
Antibacterial Ability ◽  
Replacement Surgery

Infection associated with titanium implants remains the most common serious complication in hard tissue replacement surgery. Since such postoperative infections are usually difficult to cure, it is critical to find optimal strategies for preventing infections. In this study, TiO2coating incorporating silver (Ag) nanoparticles were fabricated on pure titanium by microarc oxidation and ion implantation. The antibacterial activity was evaluated by exposing the specimens toStaphylococcus aureusand comparing the reaction of the pathogens to Ti-MAO-Ag with Ti-MAO controls. Ti-MAO-Ag clearly inhibited bacterial colonization more than the control specimen. The coating’s antibacterial ability was enhanced by increasing the dose of silver ion implantation, and Ti-MAO-Ag20.0 had the best antibacterial ability. In addition, cytocompatibility was assessed by culturing cell colonies on the specimens. The cells grew well on both specimens. These findings indicate that surface modification by means of this process combining MAO and silver ion implantation is useful in providing antibacterial activity and exhibits cytocompatibility with titanium implants.

scholarly journals Anatase Forming Treatment without Surface Morphological Alteration of Dental Implant

Materials ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5280
Author(s):  
Saturnino Marco Lupi ◽  
Benedetta Albini ◽  
Arianna Rodriguez y Baena ◽  
Giulia Lanfrè ◽  
Pietro Galinetto
Keyword(s):  
Pure Titanium ◽  
Morphological Characteristics ◽  
Surface Treatments ◽  
Titanium Implants ◽  
Point Of View ◽  
Morphological Alteration ◽  
Commercially Pure Titanium ◽  
Tio2 Layer ◽  
Amorphous Form ◽  
Commercially Pure

The osseointegration of titanium implants is allowed by the TiO2 layer that covers the implants. Titania can exist in amorphous form or in three different crystalline conformations: anatase, rutile and brookite. Few studies have characterized TiO2 covering the surface of dental implants from the crystalline point of view. The aim of the present study was to characterize the evolution of the TiO2 layer following different surface treatments from a crystallographic point of view. Commercially pure titanium and Ti-6Al-4V implants subjected to different surface treatments were analyzed by Raman spectroscopy to evaluate the crystalline conformation of titania. The surface treatments evaluated were: machining, sandblasting, sandblasting and etching and sandblasting, etching and anodization. The anodizing treatment evaluated in this study allowed to obtain anatase on commercially pure titanium implants without altering the morphological characteristics of the surface.

scholarly journals Characterization of Nano-Scale Hydroxyapatite Coating Synthesized from Eggshells Through Hydrothermal Reaction on Commercially Pure Titanium

Coatings ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 112 ◽  
Author(s):  
Hsing-Ning Yu ◽  
Hsueh-Chuan Hsu ◽  
Shih-Ching Wu ◽  
Cheng-Wei Hsu ◽  
Shih-Kuang Hsu ◽  
...  
Keyword(s):  
Hydrothermal Reaction ◽  
Alkali Treatment ◽  
Pure Titanium ◽  
Titanium Implants ◽  
Commercially Pure Titanium ◽  
Uncoated Sample ◽  
Ha Coating ◽  
Commercially Pure ◽  
Carbonate Substitution ◽  
Living Bone

Commercially pure titanium (c.p. Ti) is often used in biomedical implants, but its surface cannot usually combine with the living bone. A coating of hydroxyapatite (HA) on the surface of titanium implants provides excellent mechanical properties and has good biological activity and biocompatibility. For optimal osteocompatibility, the structure, size, and composition of HA crystals should be closer to those of biological apatite. Our results show that the surface of c.p. Ti was entirely covered by rod-like HA nanoparticles after alkali treatment and subsequent hydrothermal treatment at 150 °C for 48 h. Nano-sized apatite aggregates began to nucleate on HA-coated c.p. Ti surfaces after immersion in simulated body fluid (SBF) for 6 h, while no obvious precipitation was found on the uncoated sample. Higher apatite-forming ability (bioactivity) could be acquired by the samples after HA coating. The HA coating featured bone-like nanostructure, high crystallinity, and carbonate substitution. It can be expected that HA coatings synthesized from eggshells on c.p. Ti through a hydrothermal reaction could be used in dental implant applications in the future.

Healing of the bone around pure titanium implants without primary bone contact

1999 ◽  
Vol 29 (1) ◽  
pp. 233
Author(s):  
Jae-Hyun Ahn ◽  
Heung-Joong Kim ◽  
Joo-Cheol Park ◽  
Kyung-Yoon Han ◽  
Byung-Ock Kim
Keyword(s):  
Pure Titanium ◽  
Titanium Implants ◽  
Bone Contact ◽  
Primary Bone

scholarly journals Experimental Investigation on Material Transfer Mechanism in WEDM of Pure Titanium (Grade-2)

2013 ◽  
Vol 2013 ◽  
pp. 1-20 ◽  
Author(s):  
Anish Kumar ◽  
Vinod Kumar ◽  
Jatinder Kumar
Keyword(s):  
Experimental Investigation ◽  
Pure Titanium ◽  
Transfer Mechanism ◽  
Free Form ◽  
Machining Parameters ◽  
Material Transfer ◽  
X Ray ◽  
Pulse On Time ◽  
Pulse Off Time ◽  
Wedm Process

This research work mainly focused on experimental investigation on material transfer mechanism in WEDM of pure titanium. The effects of machining parameters such as pulse on time, pulse off time, peak current, spark gap voltage, wire feed, and wire tension on the material removal rate (MRR), overcut, and surface roughness for pure titanium in WEDM process were explored. The selected machined samples were analyzed using energy dispersive X-ray analysis, scanning electron microscope, and X-ray diffraction techniques. It was observed from the results that a significant material transfer occurred from the dielectric, as well as tool, electrode on the work surface either in free form and/or in compound form. Also the multiresponse optimization of process parameters was done using desirability approach. The predictions from this model were validated by conducting experiments.

Characterization of Calcium Phosphate Films Prepared by RF Magnetron Sputtering

2005 ◽  
Vol 888 ◽  
Author(s):  
Takayuki Narushima ◽  
Kyosuke Ueda ◽  
Takashi Goto ◽  
Tomoyuki Katsube ◽  
Hiroshi Kawamura ◽  
...  
Keyword(s):  
Calcium Phosphate ◽  
Magnetron Sputtering ◽  
Amorphous Calcium Phosphate ◽  
Pure Titanium ◽  
Active Surface ◽  
Rf Magnetron Sputtering ◽  
Titanium Implants ◽  
Calcium Phosphate Coating ◽  
Commercially Pure Titanium ◽  
Cp Ti

ABSTRACTCalcium phosphate films were prepared on commercially pure titanium (CP-Ti) substrates by RF magnetron sputtering using β-tricalcium phosphate targets. XRD and FTIR analyses showed that the films consisted of amorphous calcium phosphate and oxyapatite phases. The (002) preferred orientation of the oxyapatite phase was observed depending on the oxygen gas concentration in the sputtering gas. The surface reactions of the calcium phosphate films were investigated in Hanks' solution and PBS(-). Apatite crystallites were detected on the films after immersion for 7 days. An active surface reaction was observed on the amorphous calcium phosphate films during immersion in PBS(-). The CP-Ti plates coated with the calcium phosphate films were placed on the mandible of male Japanese white rabbits. These results suggest that the calcium phosphate coating improves the biocompatibility of titanium implants with bone.

TiO2/PCL Hybrid Layers Prepared via Sol-Gel Dip Coating for the Surface Modification of Titanium Implants: Characterization and Bioactivity Evaluation

2015 ◽  
Vol 760 ◽  
pp. 353-358 ◽  
Author(s):  
Michelina Catauro ◽  
Flavia Bollino ◽  
Ferdinando Papale ◽  
Giuseppe Lamanna
Keyword(s):  
Sol Gel ◽  
Pure Titanium ◽  
Dip Coating ◽  
Biological Properties ◽  
Titanium Implants ◽  
Human Blood Plasma ◽  
Commercially Pure Titanium ◽  
Implant Surface ◽  
Titanium Grade ◽  
Dip Coating Technique

When bioactive coatings are applied to medical implants by means of sol-gel dip coating technique, the biological proprieties of the implant surface can be modified to match the properties of the surrounding tissues. In this study, sol-gel method is used to synthesized organic-inorganic nanocomposites materials consisting of an inorganic titania matrix in which 10 wt% of a biodegradable polymer, the poly-ε-caprolactone (PCL), was incorporated. The synthesized materials, in sol phase, were used to dip-coat a commercially pure titanium grade 4 substrate in order to improve its surface biological properties. Materials were characterized using Fourier transform infrared spectroscopy (FT-IR) and a morphological analysis of the obtained films was performed via scanning electron microscopy (SEM). Coating bioactivity was investigated by soaking coated substrates in a fluid simulating the human blood plasma (SBF) and successively evaluating the formation of a hydroxyapatite layer on their surface by means of SEM/EDX (energy dispersive X-ray).

scholarly journals Nanostructured materials based on pure titanium and bio-soluble magnesium alloy to create surgical implants

2011 ◽  
Vol 16 (4) ◽  
pp. 31-36
Author(s):  
K.V. Kutnij
Keyword(s):  
Mechanical Properties ◽  
Magnesium Alloy ◽  
Biological Fluid ◽  
Pure Titanium ◽  
Titanium Implants ◽  
Future Application ◽  
Medical Implants ◽  
Fine Grained ◽  
Surgical Implants ◽  
Alloy We43

Influence of structural state on mechanical properties of pure titanium and magnesium alloy WE43 as candidates for use as nondegradable (titanium) and degradable (WE43) medical implants was studied. By the methods of severe plastic deformation in combination with programmed heat treatment the nanostructured pure titanium and ultra-fine-grained magnesium alloy WE43 were obtained. It is shown, that grain size substantially affects not only the mechanical properties of the indicated materials but also the corrosion rate of magnesium alloy WE43 in the medium simulating biological fluid. The possibility of replacing the titanium implants by nanostructured pure titanium and future application of degradable ultra-finegrained magnesium implants is discussed

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