Logo Annals of Transplantation Logo Annals of Transplantation Logo Annals of Transplantation

15 January 2004 : Original article  

Hard Tissue Compatibility of Titanium Phosphide Layers Obtained by Diffusion in Ti-HA Interface

C S Kim, K E Hwang, S J Heo

Ann Transplant 2004; 9(1A): 82-87 :: ID: 15642

Abstract

Previous studies on phosphide and oxide films formed by heat treatment of Ti dip-coated with HA showed various properties in both composition and morphology of the interfaces according to the heating temperature. HA dip-coated Ti screws were heated for 1 hour in a graphite furnace with a protective argon atmosphere at 800 (TiP1), 850 (TiP2) and 900°C (TiP3), after producing a vacuum (10-2 Torr). The adhering HA layers on the metal surfaces were removed with a strong jet of distilled water and subsequently sterilized according to standard procedures for metallic implant devices. Nine adult New Zealand white rabbits, aged 9 to 10 months, were used in the experiments. The three screw-shape specimens including an untreated Ti (c. pTi) screw were implanted in each animal, two in each medial proximal tibia according to the surgical protocol of the Branemark implant system. After 4 weeks, the rabbits were sacrificed with a lethal dose of pentobarbital injection and then the osseointegration was determined by an immediate measurement of the removal torque of the specimens. The results obtained demonstrated that the phosphide and rough Ti surface layers yielded higher removal torque values than the untreated Ti surface. The mean torques were 15.3, 33.8, 27.7 and 37.5 N-cm for c. pTi, TiP1, TipP2 and TiP3, respectively. Oxide thickness and mean pore size of the heated Ti surfaces increased relative to elevated heating temperature, the maximum phosphorus concentration (about 7 at. %) diffused from the HA layer was obtained via heating at 800°C. From these results, it can be concluded that the chemical composition of Ti phosphide layer and the surface morphology of Ti-based materials play an important role in the bone bonding process on Ti implants.

Keywords: Titanium, hydroxyapatite, Surface Modification, Bone Bonding, Titanium Phosphide

Comments

In Press

06 May 2022 : Original article  

Phosphatidylethanol (PEth) for Monitoring Sobriety in Liver Transplant Candidates: Preliminary Results of D...

Ann Transplant In Press; DOI: 10.12659/AOT.936293  

Most Viewed Current Articles

29 Dec 2021 : Original article  

Efficacy and Safety of Tacrolimus-Based Maintenance Regimens in De Novo Kidney Transplant Recipients: A Sys...

DOI :10.12659/AOT.933588

Ann Transplant 2021; 26:e933588

26 Jan 2022 : Review article  

Recurrence of Hepatocellular Carcinoma After Liver Transplantation: Risk Factors and Predictive Models

DOI :10.12659/AOT.934924

Ann Transplant 2022; 27:e934924

24 Jul 2020 : Review article  

Kidney Transplantation in the Times of COVID-19 – A Literature Review

DOI :10.12659/AOT.925755

Ann Transplant 2020; 25:e925755

15 Mar 2022 : Case report  

Combined Liver, Pancreas-Duodenum, and Kidney Transplantation for Patients with Hepatitis B Cirrhosis, Urem...

DOI :10.12659/AOT.935860

Ann Transplant 2022; 27:e935860

Your Privacy

We use cookies to ensure the functionality of our website, to personalize content and advertising, to provide social media features, and to analyze our traffic. If you allow us to do so, we also inform our social media, advertising and analysis partners about your use of our website, You can decise for yourself which categories you you want to deny or allow. Please note that based on your settings not all functionalities of the site are available. View our privacy policy.

Annals of Transplantation eISSN: 2329-0358
Annals of Transplantation eISSN: 2329-0358