Abstract：
:In this study, design optimization of a tooth implant-supported fixed prosthesis was investigated theoretically. A three-dimensional finite element analysis was utilized to simulate the stress distribution and deformation, with an emphasis on the material selection for various parts of the prosthesis. This mandibular prosthesis was supported by six implants. The properties of 3 different materials for implants and 4 different materials for framework were incorporated into 12 different models. For the loading conditions used, it was found that the largest displacements occurred at the far ends of the framework and that the resulting deflection was highly dependent on the material properties of the framework. The simulations showed that the stress in the framework was mainly concentrated near the holes in the lower surface and that the highest values of von Mises stresses occurred in the lingual part of the prosthesis. Furthermore, the modeling results revealed that more rigid frameworks led to a corresponding decreased stress in the retaining screws and that high-stress concentration areas moved from the neck of the implant towards the base of it, as the value of Young's modulus increased. It was concluded that the first best model was the Cr-Co alloy for the framework and the Ti alloy for the implant and the second best choice was the Cr-Co alloy for both the framework and the implant.
journal_name
Biomed Mater Engjournal_title
Bio-medical materials and engineeringauthors
Dargahi J,Najarian S,Talebi Msubject
Has Abstractpub_date
2005-01-01 00:00:00pages
317-31issue
4eissn
0959-2989issn
1878-3619journal_volume
15pub_type
杂志文章abstract：:Hyaluronic acid (HA) was used as an internal phase additive to improve the loading efficiency of ofloxacin, a hydrophilic drug encapsulated by hydrophobic polylactic-co-glycolic acid (PLGA) materials, through a double emulsion (water-in-oil-in-water) solvent extraction/evaporation method. Results from laser distributi...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-130863
更新日期：2014-01-01 00:00:00
abstract：:MicroRNAs (miRNAs) are a group of endogenous noncoding small RNAs characterized by high conservation; furthermore, various studies have shown the capability of miRNAs to impact diseases. For example, a study shows that cell-free miRNAs are stable in bodily fluids, which gives circulating miRNAs the ability to be poten...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章,评审
doi：10.3233/BME-141223
更新日期：2014-01-01 00:00:00
abstract：:Bioartificial liver support provides a bridge to transplantation which is at present the only proven specific treatment for acute liver failure. In this paper, a novel multi-coaxial hollow fiber bioreactor so-called "Fibre-in-Fibre FIF Bioartificial liver device" with three compartments is experimentally and mathemati...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-130762
更新日期：2013-01-01 00:00:00
abstract：:Milkvetch root as a medicine has been used for more over 2000 years in China, can strengthen immune function, protect liver, promote urination, resist aging and stress, reduce blood pressure and extensively resist bacterium. This study explored the effects of milkvetch root on the immune function of patients with a de...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章,随机对照试验
doi：10.3233/BME-151517
更新日期：2015-01-01 00:00:00
abstract：:Stroke is a major cause of death and disability throughout the world. Subtotal occlusion of the carotid artery is an important risk factor for stroke. Carotid artery stenting (CAS) is increasingly being used for treatment of carotid artery stenosis. There are many reports on treating carotid artery stenosis by CAS; ho...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-2012-0687
更新日期：2012-01-01 00:00:00
abstract：:To better analyze images with the Gaussian white noise, it is necessary to remove the noise before image processing. In this paper, we propose a self-adaptive image denoising method based on bidimensional empirical mode decomposition (BEMD). Firstly, normal probability plot confirms that 2D-IMF of Gaussian white noise...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-141143
更新日期：2014-01-01 00:00:00
abstract：OBJECTIVE:Normal pregnancy is associated with profound alterations in the maternal cardiovascular system and PPG represents a sensitive and convenient technique capable of tracking changes in the pulsatile function of arteries. The aim of this study was to investigate the effects of maternal cardiovascular alterations ...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-130801
更新日期：2014-01-01 00:00:00
abstract：:Age-related macular degeneration (ARMD) and intraocular neovascular diseases have been treated clinically by anti-VEGF antibody drug bevacizumab. However, the use of bevacizumab in the treatment of retinal neovascular diseases has been limited due to the short half-life and frequent injections. In this research, novel...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-141003
更新日期：2014-01-01 00:00:00
abstract：:The biological, biochemical, mechanical, and structural properties of artificial scaffolds for tissue engineering are known to be of great importance. Therefore, in this study a hydrogel derived scaffold with biomechanical and structural properties similar to native articular cartilage was synthesized. The gelatine-ba...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：
更新日期：2005-01-01 00:00:00
abstract：:The balance between extracellular inorganic phosphate (ePi) and extracellular inorganic pyrophosphate (ePPi) is controlled by four membrane proteins: the transporters ANK (exporting PPi outside the cells) and PiT-1 (importing ePi into the cells), and the enzymes PC-1 (generating ePPi from nucleotides) and Tissue Non-s...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-2010-0634
更新日期：2010-01-01 00:00:00
abstract：:To evaluate the deterioration in the superelasticity of Ti-coated NiTi orthodontic wires, titanium was coated onto wires to form a 1-microm thick film using radio frequency magnetron sputtering. In superelasticity cycle tests, the sigma5.0 value (the stress at 5.0% strain) of a Ti-coated wire was lower than that of a ...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：
更新日期：2003-01-01 00:00:00
abstract：BACKGROUND:Electrospinning is a highly effective method in order to generate nano-scaled fibers. In conventional electrospinning technique, geometry of nanofibers are mostly random due to the chaotic behavior of polymer jet. OBJECTIVE:Purpose of this study is to produce aligned nanofibers from PVP polymers with advanc...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-181017
更新日期：2018-01-01 00:00:00
abstract：:Correlation-based feature selection (CFS) using neighborhood mutual information (NMI) and particle swarm optimization (PSO) are combined into an ensemble technique in this paper. Based on this observation, an efficient gene selection algorithm, denoted by NMICFS-PSO, is proposed. Several cancer recognition tasks are g...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-130897
更新日期：2014-01-01 00:00:00
abstract：:A driver's response to a front-coming vehicle collision consists of braking reaction time and braking behavior. The purpose was to investigate drivers' responses at different speeds, relative distances, and particularly the behavior on the accelerator at the collision moment. Twelve young men participated in driving s...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-151347
更新日期：2015-01-01 00:00:00
abstract：BACKGROUND:In order to manufacture pharmaceutical products, real-time monitoring in the manufacturing process is necessary, but large equipment cost is required to achieve it. OBJECTIVE:The aim of this research is to use ultra-violet-visible spectroscopy along with chemometrics procedure to simultaneously carry out qu...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-181034
更新日期：2019-01-01 00:00:00
abstract：:The goal of the study was to determine material constants of cancellous tissue in a compression test taking into account stress-strain characteristics. The nineteen test samples were resected from a femoral head of a patient qualified for a hip replacement surgery. During the compression tests, load-displacement curve...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-180999
更新日期：2018-01-01 00:00:00
abstract：:Morse code is now being harnessed for use in rehabilitation applications of augmentative-alternative communication and assistive technology, including mobility, environmental control and adapted worksite access. In this paper, Morse code is selected as a communication adaptive device for disabled persons who suffer fr...
journal_title：Bio-medical materials and engineering
pub_type： 临床试验,杂志文章
doi：
更新日期：2004-01-01 00:00:00
abstract：:Two different types of colloidal lipid particles are presented and compared as innovative carrier systems. Size distribution and storage stability of formulations produced by hot high pressure homogenisation in lab and medium scale production were investigated by laser diffractometry (LD) and photon correlation spectr...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：
更新日期：2005-01-01 00:00:00
abstract：BACKGROUND:Scallop shell powder is called bioshell calcium oxide (BiSCaO), which is known to possess deodorizing properties and broad antimicrobial activity against various pathogenic microbes, including viruses, bacteria, spores, and fungi. OBJECTIVE:This study aims to investigate the applications of BiSCaO suspensio...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-201082
更新日期：2020-01-01 00:00:00
abstract：:Sino-atrial node cells (SANCs) play a significant role in rhythmic firing. To investigate their role in arrhythmia and interactions with the atrium, computer simulations based on cellular dynamic mathematical models are generally used. However, the large-scale computation usually makes research difficult, given the li...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-151365
更新日期：2015-01-01 00:00:00
abstract：:To obtain an appropriate model for the simulation of the biomechanical behavior of brain tissue and the deformation of ventricles, in particular, we have developed a novel computerized plain strain finite element model. For optimum results, a multiple loading solutions approach using various tissue parameters for the ...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：
更新日期：2007-01-01 00:00:00
abstract：:Tissue engineering is a multidisciplinary field that applies the principles of engineering, life sciences, cell and molecular biology toward the development of biological substitutes that restore, maintain, and improve tissue function. In Western Countries, tissues or cells management for clinical uses is a medical ac...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-2010-0624
更新日期：2010-01-01 00:00:00
abstract：:Hydroxyapatite has been rubbed against ultra-high-molecular-weight-polyethylene (UHMWPE) under calcium-containg aqueous solutions. Further, hardness tests were carried out in air and in calcium-containing solutions whose pH ranged from pH 5 to pH 9. Hardness was found to vary with pH with a peak at around pH 7, i.e. -...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：
更新日期：2001-01-01 00:00:00
abstract：:The effect of carbonate in reducing the crystal size of precipitated hydroxyapatite by approximately an order of magnitude has not been used previously in the preparation of gel monoliths for the fabrication of carbonate hydroxyapatite ceramics. The aim of this study was to devise a method whereby gel monoliths of car...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：
更新日期：1996-01-01 00:00:00
abstract：OBJECTIVE:We aimed to develop a novel ultrasound system and examine its feasibility for noninvasively detecting thoracic aortic aneurysm (TAA) in clinical settings. METHODS:We developed a novel ultrasound system consisting of a modified console and data analysis algorithm. The exploratory study included 100 patients h...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-191047
更新日期：2019-01-01 00:00:00
abstract：:Mechanical testing has been performed to characterize the locking strength of Morse taper locks used for reconstruction of large bone defects. Taper joint pairs were locked with a series of compressive loads increasing from 500 to 3500 N. Following each load application the taper locks were distracted with either an a...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：
更新日期：1997-01-01 00:00:00
abstract：:Dry emulsion containing curcumin (DE-CUR) was prepared for oral delivery of poorly water-soluble curcumin, and its oral bioavailability and antiasthmatic efficacy was evaluated. After comparison of the solubility of curcumin in various oils, Plurol® Oleique CC497 was selected to be the oil phase due to its higher solu...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-130886
更新日期：2014-01-01 00:00:00
abstract：BACKGROUND:Great potential of cellular therapies has generated extensive research in the field of cells harvesting and culturing. Transplantation of cell cultures has been used in a variety of therapeutic programs but in many cases it appeared that biomaterial scaffold or sheath would enhance cells regenerative potenti...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-140966
更新日期：2014-01-01 00:00:00
abstract：:Reoperation of aldehyde tanned bioprotheses due to calcific degeneration remains their major drawback. Based on experiments studying mechanisms and factors that influence the time phase, extent and progression of calcification and evaluating the efficiency of anticalcification treatments and the effects of surface see...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：
更新日期：2004-01-01 00:00:00
abstract：:DNA-binding proteins are involved and play a crucial role in a lot of important biological processes. Hence, the identification of the DNA-binding proteins is a challenging and significant problem. In order to reveal the intrinsic information correlated to DNA-binding, nine classes of candidate features based on diffe...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-151491
更新日期：2015-01-01 00:00:00
