نتایج جستجو برای: titanium elastic nails

تعداد نتایج: 109498  

Journal: :dental research journal 0
morteza oshagh farzaneh khajeh somayeh heidari sepideh torkan hamid reza fattahi

background: different environmental conditions, such as high temperature or exposure to some chemical agents, may affect the force decay of different methods of space closure during orthodontic treatment. the aim of this in vitro study was to evaluate the force decay pattern in the presence of tea as a popular drink in some parts of the world and two mouthwashes that are usually prescribed by t...

2014
Waldemar Hoffmann Therese Bormann Antonella Rossi Bert Müller Ralf Schumacher Ivan Martin Michael de Wild David Wendt

While calcium phosphate-based ceramics are currently the most widely used materials in bone repair, they generally lack tensile strength for initial load bearing. Bulk titanium is the gold standard of metallic implant materials, but does not match the mechanical properties of the surrounding bone, potentially leading to problems of fixation and bone resorption. As an alternative, nickel-titaniu...

2018

Since ancient times, beautiful skin, firm nails and shiny hairs which look good and live young, has had a strong desire for humans. To maintain health and natural beauty as long as possible and to delay the aging process, continuous supply of some nutrients is necessary in the body. Our metabolism is reflected on the skin, which is sensitive to any change that happens. From inside of a body, th...

2018

Since ancient times, beautiful skin, firm nails and shiny hairs which look good and live young, has had a strong desire for humans. To maintain health and natural beauty as long as possible and to delay the aging process, continuous supply of some nutrients is necessary in the body. Our metabolism is reflected on the skin, which is sensitive to any change that happens. From inside of a body, th...

2018

Since ancient times, beautiful skin, firm nails and shiny hairs which look good and live young, has had a strong desire for humans. To maintain health and natural beauty as long as possible and to delay the aging process, continuous supply of some nutrients is necessary in the body. Our metabolism is reflected on the skin, which is sensitive to any change that happens. From inside of a body, th...

Journal: :Physical review letters 2012
E F C Driessen P C J J Coumou R R Tromp P J de Visser T M Klapwijk

We probe the effects of strong disorder (2.4<k(F)l<8.6) on superconductivity in thin films of niobium titanium nitride and titanium nitride by measuring the microwave electrodynamics in coplanar waveguide resonators. We find a gradual evolution of the electromagnetic response with disorder, deviating from BCS theory, for both materials. This result can be understood as due to changes in the qua...

2005
Bun Tsuchiya Shinji Nagata Naofumi Ohtsu Kentaro Toh Tatsuo Shikama

Changes in hydrogen distribution in -phase titanium hydrides (TiH1:92 1:95), covered with titanium oxide layers (TiO and TiO2), were investigated by elastic recoil detection analysis (ERDA) after isochronal and isothermal annealing experiments. The hydrogen concentration near to the surface of the hydride exponentially decreased as a function of annealing time in the temperature range from 423 ...

Journal: :International Journal of Orthopaedics Sciences 2023

TENS (Titanium Elastic nailing system has become the standard treatment for pediatric femoral shaft fractures in age group 6-14 years. The other options are traction plus spica casting and external fixation. In spite of excellent results described various studies, there still exists disunity orthopedic fraternity with regards to its usefulness. aim this study is determine outcome femur treated ...

Journal: :Journal of orthopaedic research : official publication of the Orthopaedic Research Society 1992
H Weinans R Huiskes H J Grootenboer

Bone loss around femoral hip stems is one of the problems threatening the long-term fixation of uncemented stems. Many believe that this phenomenon is caused by reduced stresses in the bone (stress shielding). In the present study the mechanical consequences of different femoral stem materials were investigated using adaptive bone remodeling theory in combination with the finite element method....

Journal: :Dental materials journal 2003
Yoshifumi Higashino Mutsuo Yamauchi Takayasu Goto Toru Nagasawa

To elucidate the cause of brittleness of porcelain fused to pure titanium (PFPT) which leads to chipping and cracking similar to that of conventional porcelain in clinical use, fracture toughness KIc, hardness (Hv and Hk) and fracture energy gamma reflecting the bonding energy of atoms were evaluated. In KIc there were no differences between PFPT and conventional porcelain, nor for Hv and Hk, b...

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