نتایج جستجو برای: titanium implant

تعداد نتایج: 80029  

2014
Kyung Min Lee Ji Ung Park Sung Tack Kwon Suk Wha Kim Eui Cheol Jeong

BACKGROUND The objective of this article is to evaluate clinical outcomes of combined orbital floor and medial wall fracture repair using a three-dimensional pre-bent titanium implant in an East Asian population. METHODS Clinical and radiologic data were analyzed for 11 patients with concomitant orbital floor and medial wall fractures. A combined transcaruncular and inferior fornix approach w...

2007
Daniel L. Adams John R. Economides Cristina M. Jocson Jonathan C. Horton

Adams DL, Economides JR, Jocson CM, Horton JC. A biocompatible titanium headpost for stabilizing behaving monkeys. J Neurophysiol 98: 993–1001, 2007. First published May 23, 2007; doi:10.1152/jn.00102.2007. Many neurophysiological experiments involving monkeys require that the head be stabilized while the animal performs a task. Often a post is attached to the skull to accomplish this goal, usi...

Journal: :South African journal of surgery. Suid-Afrikaanse tydskrif vir chirurgie 2008
J F Lownie P A Betts R S Bryant P Cleaton-Jones

OBJECTIVE To introduce a rabbit-based model for testing the torque removal force (TRF) of implants and to compare the TRF of a series of titanium implants. METHODS Two experiments were performed at the University of the Witwatersrand. In the first, a Swedish- (SSM-N) or a South African-manufactured (SSM-S) implant was implanted into the tibiae of 12 rabbits and the TRF measured at 1, 3 and 6 ...

2015
Warwick J. Duncan Min-Ho Lee Tae-Sung Bae Sook-Jeong Lee Jennifer Gay Carolina Loch

Spark discharge anodic oxidation forms porous TiO2 films on titanium implant surfaces. This increases surface roughness and concentration of calcium and phosphate ions and may enhance early osseointegration. To test this, forty 3.75 mm × 13 mm titanium implants (Megagen, Korea) were placed into healed mandibular postextraction ridges of 10 sheep. There were 10 implants per group: RBM surface (c...

Journal: :The International journal of oral & maxillofacial implants 2001
H Deppe H H Horch J Henke K Donath

One of the many applications for which lasers have been proposed in implant dentistry is for the decontamination process. The purposes of this study were to assess possible alterations in titanium implants in vitro and in vivo by use of the carbon dioxide (CO2) laser and to determine whether new bone formation can occur on previously contaminated implants. In vitro, temperature changes at the b...

Journal: :Journal of dental research 2004
Y Shibata H Kawai H Yamamoto T Igarashi T Miyazaki

Implant surfaces should be modified to achieve excellent cell compatibility as well as antibacterial activity. Our previous study demonstrated that titanium plates anodized by being discharged in NaCl (Ti-Cl) exhibited high antibacterial activity. Since Ti-Cl was prepared with a NaCl solution, we hypothesized that Ti-Cl would exhibit low toxicity toward cells. The aims of this study were to cha...

2017
N.R. Alqhtani N.J. Logan S. Meghji R. Leeson P.M. Brett

Since the 1980s, titanium (Ti) implants have been routinely used to replace missing teeth. This success is mainly due to the good biocompatibility of Ti and the phenomenon of osseointegration, with very early events at implant placement being important in determining good osseointegration. However, enhancing implant performance with coatings such as hydroxyapatite (HA) and calcium phosphate has...

Journal: :The International journal of periodontics & restorative dentistry 2011
Craig M Misch

The atrophic posterior mandible has unique challenges when implant placement is planned. The purpose of this case series was to evaluate the use of recombinant human bone morphogenetic protein 2÷acelluar collagen sponge (rhBMP-2÷ACS) and titanium mesh for augmentation of the atrophic posterior mandible prior to implant insertion. The case series included five patients with inadequate bone in th...

2014
Weiqing Liu Shiwen Zhang Dan Zhao Huawei Zou Ningyuan Sun Xing Liang Michel Dard Beate Lanske Quan Yuan

Vitamin D (Vit D) deficiency is a common condition in chronic kidney disease (CKD) patients that negatively affects bone regeneration and fracture healing. Previous study has shown that timely healing of titanium implants is impaired in CKD. This study aimed to investigate the effect of Vit D supplementation on implant osseointegration in CKD mice. Uremia was induced by 5/6 nephrectomy in C57BL...

2016
Zhenlin Wang Zhiqiang Hu Dawei Zhang Mengchuan Zhuo Jiwei Cheng Xingping Xu Yongming Xing Jie Fan

Titanium implants are known for their bone bonding ability. However, the osseointegration may be severely disturbed in the inflammation environment. In order to enhance osseointegration of the implant in an inflamed environment, the small interfering RNA (siRNA) targeting tumor necrosis factor alpha (TNF-α) was used to functionalize titanium surface for gene silencing. The chitosan-tripolyphosp...

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