نتایج جستجو برای: ti implants

تعداد نتایج: 89618  

Journal: :Journal of Korean Acedemy of Dental Technology 2012

2010
L. Reig V. Amigó D. Busquets J. A. Calero

The excellent properties of Ti have resulted in its generalised use for bone implants. However, Ti is very stiff in comparison with human cortical bone, and this creates problems of bone weakening and loosening of the implant. This article discusses the mechanical properties (flexural and compressive strength, and stiffness) of porous Ti–6Al–4V specimens developed using the space holder method....

2018
Nithideth Somsanith Yu-Kyoung Kim Young-Seok Jang Young-Hee Lee Ho-Keun Yi Jong-Hwa Jang Kyoung-A Kim Tae-Sung Bae Min-Ho Lee

TiO₂ nanotubes (TNT) formation is beneficial for improving bone cell-material interaction and drug delivery for Ti dental implants. Among the natural drugs to be installed in TNT, selected propolis has antibacterial and anti-inflammatory properties. It is a resinous natural product which is collected by the honeybees from the various types of plants with their salivary enzymes. This study concl...

2015
Hossein Maleki-Ghaleh Masoud Hafezi Mohammadreza Hadipour Ali Nadernezhad Ermia Aghaie Yashar Behnamian Noor Azuan Abu Osman Xiaohua Liu

In the current study, a sol-gel-synthesized tricalcium magnesium silicate powder was coated on Ti-6Al-4V alloys using plasma spray method. Composition of feed powder was evaluated by X-ray diffraction technique before and after the coating process. Scanning electron microscopy and atomic force microscopy were used to study the morphology of coated substrates. The corrosion behaviors of bare and...

2012
Yoshimitsu Okazaki

Zr, Nb, and Ta as alloying elements for Ti alloys are important for attaining superior corrosion resistance and biocompatibility in the long term. However, note that the addition of excess Nb and Ta to Ti alloys leads to higher manufacturing cost. To develop low-cost manufacturing processes, the effects of hot-forging and continuous-hot-rolling conditions on the microstructure, mechanical prope...

2015
Yifei Zhang Yunfei Zheng Yongliang Li Lixin Wang Yanjie Bai Qiang Zhao Xiaoling Xiong Yan Cheng Zhihui Tang Yi Deng Shicheng Wei Donghui Zhu

Microbiologically induced corrosion (MIC) of metallic devices/implants in the oral region is one major cause of implant failure and metal allergy in patients. Therefore, it is crucial to develop practical approaches which can effectively prevent MIC for broad clinical applications of these materials. In the present work, tantalum nitride (TaN)-decorated titanium with promoted bio-corrosion and ...

Journal: :Journal of the Royal Society, Interface 2012
Wen L Chai Ian M Brook Anders Palmquist Richard van Noort Keyvan Moharamzadeh

For dental implants, it is vital that an initial soft tissue seal is achieved as this helps to stabilize and preserve the peri-implant tissues during the restorative stages following placement. The study of the implant-soft tissue interface is usually undertaken in animal models. We have developed an in vitro three-dimensional tissue-engineered oral mucosal model (3D OMM), which lends itself to...

Journal: :Biointerphases 2015
Laura Burgos-Asperilla Jose Luis Garcia Fierro Miriam Gamero Maria Lorenza Escudero Concepción Alonso Maria Cristina García-Alonso

Micromotion and fretting wear between bone and Ti-based alloys in stem and dental implants breaks the passive film and exposes the metal to the action of the complex surrounding medium, generating substantial amounts of debris and continuous Ti ion release. In this work, oxidation treatments at low temperatures (277 °C, 5 h) have been used to promote the formation of wear-corrosion resistant ti...

2018
Yong Huang Xue Shen Haixia Qiao Hao Yang Xuejiao Zhang Yiyao Liu Hejie Yang

Background Two frequent problems associated with titanium (Ti) surfaces of bone/dental implants are their corrosion and lack of native tissue integration. Methods Here, we present an anodization-hydrothermal method for coating Ti surfaces with a layer of silicon (Si)- and strontium (Sr)-loaded titania nanotubes (TNs). The Ti surfaces coated with such a layer (Si-Sr-TNs) were characterized wit...

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