نتایج جستجو برای: porous bone implant

تعداد نتایج: 387661  

Journal: :avicenna journal of medical biochemistry 0
zohre alijanian department of microbiology, faculty of biological science, falavarjan branch, islamic azad university, falavarjan, isfahan, ir iran; department of microbiology, faculty of biological science, falavarjan branch, islamic azad university, falavarjan, isfahan, ir iran. tel: +98-3137420136 nasrin talebian department of chemistry, faculty of biological science, shahreza branch, islamic azad university, shahreza, isfahan, ir iran monir doudi department of microbiology, faculty of biological science, falavarjan branch, islamic azad university, falavarjan, isfahan, ir iran

conclusions increasing the cu nanoparticles in bioactive glass samples leads to the release of cu2+, which has a positive effect on the antibacterial mechanism, as well as decreasing the cultured staphylococcus colonies found on the bioglasses. therefore, it seems that the nanocomposite/bioglass of cuo is a promising option for aerobic bacterial inhibitor systems in common bone implant infectio...

Journal: :journal of dental biomaterials 0
iman zarei department of mechanical engineering, collage of engineering, shiraz branch, islamic azad university , shiraz, iran salar khajehpour department of mechanical engineering, collage of engineering, shiraz branch, islamic azad university , shiraz, iran abbas sabouri department of prosthodontics, school of dentistry, shiraz university of medical sciences, shiraz, iran. abdol aziz haghnegahdar department of oral and maxillofacial radiology, school of dentistry, shiraz university of medical sciences, shiraz, iran karim jafari department of prosthodontics, school of dentistry, ardabil university of medical sciences, ardabil, iran.

statement of problem: impacts and accidents are considered as the main fac- tors in losing the teeth, so the analysis and design of the implants that they can be more resistant against impacts is very important. one of the important nu- merical methods having widespread application in various fields of engineering sciences is the finite element method. among its wide applications, the study of ...

Journal: :journal of dental biomaterials 0
s. raoofi department of periodontology, school of dentistry ,shiraz university of medical sciences, shiraz, iran. z. behboud department of periodontology, school of dentistry ,shiraz university of medical sciences, shiraz, iran.

statement of problem: thermal injury during dental implant placement and restoration is a clinical concern as it may cause bone damage and compromise osseointegration. the threshold level for heat-induced cortical bone necrosis is 47°c for 60 seconds. objectives: to measure the amount of heat transferred to the implant-bone interface when a two-piece or one-piece abutment was prepared in vertic...

2010
Lorenzo Fassina Enrica Saino Maria Gabriella Cusella De Angelis Giovanni Magenes Francesco Benazzo Livia Visai

Bone graft substitutes and cancellous biomaterials have been widely used to heal critical-size long bone defects due to trauma, tumor resection, and tissue degeneration. In particular, porous hydroxyapatite is widely used in reconstructive bone surgery owing to its biocompatibility. In addition, the in vitro modification of cancellous hydroxyapatite with osteogenic signals enhances the tissue r...

Journal: :Metals 2022

In the past two decades, titanium foams have attracted greater interest from biomedical industry due to their excellent chemical and mechanical biocompatibility when used as biomimetic implants. The porous structure plays an important role in bone adhesion implant, allowing its growth into component. Moreover, voids reduce elastic modulus, promoting compatibility with bone, avoiding stress shie...

2013
Jong T Kim Leonard M Rudolf John A Glaser

DESIGN Independent retrospective review of a single surgeon's experience with a new technique of SI fixation. OBJECTIVE Examine results of percutaneous fixation of the SI joint with porous coated triangular titanium implants. BACKGROUND Diagnosis and treatment of a dysfunctional sacroiliac joint is challenging as well as controversial. Recently, percutaneous stabilization techniques have be...

ژورنال: مجله دندانپزشکی 2019

Background and Aims: The aim of this study was to assess the outcome of short implants (<8 mm length) as an alternative to sinus lift surgery and placement of standard-length implants (10-12 mm length) for rehabilitation of atrophic posterior maxilla. Materials and Methods: In this prospective clinical trial, 26 patients with 6-7 mm of residual alveolar bone height in their atrophic posterior ...

Journal: :Journal of cell science 1992
B Groessner-Schreiber R S Tuan

Long-term stability of orthopaedic and dental implants depends on the integration of the artificial material into the surrounding bone tissue. The physical and chemical properties of implants, including those made of metals such as titanium, are thought to influence osseointegration. Despite the known importance of this interface, little is known about the factors that promote its formation. In...

Amirreza Hendi, Mahsa koochaki,

Abstract The implant-supported removable partial dentures should be an alternative to conventional removable partial dentures and implant-supported fixed partial prostheses when the implant’s insertion is confined by bone height and thickness. Placing a single implant in the posterior region would modify the Kennedy Class II configuration to a Kennedy Class III and increase the stability a...

2015
Julia Matena Svea Petersen Matthias Gieseke Andreas Kampmann Michael Teske Martin Beyerbach Hugo Murua Escobar Heinz Haferkamp Nils-Claudius Gellrich Ingo Nolte

To improve well-known titanium implants, pores can be used for increasing bone formation and close bone-implant interface. Selective Laser Melting (SLM) enables the production of any geometry and was used for implant production with 250-µm pore size. The used pore size supports vessel ingrowth, as bone formation is strongly dependent on fast vascularization. Additionally, proangiogenic factors ...

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