نتایج جستجو برای: mta

تعداد نتایج: 2644  

Journal: :Brain : a journal of neurology 2009
E J Burton R Barber E B Mukaetova-Ladinska J Robson R H Perry E Jaros R N Kalaria J T O'Brien

The purpose of this study was to determine the diagnostic accuracy of medial temporal lobe atrophy (MTA) on MRI for distinguishing Alzheimer's disease from other dementias in autopsy confirmed cases, and to determine pathological correlates of MTA in Alzheimer's disease, dementia with Lewy bodies (DLB) and vascular cognitive impairment (VCI). We studied 46 individuals who had both antemortem MR...

لباف, دکتر حسین, نظری مقدم, دکتر کیومرث, هنردار, دکتر کیامرث,

In vitro Comparsion of Two Implanted Materials, Iranian (Root MTA) and Foreign (Pro Root – MTA), Regarding dye Microleakage of Furcation Perforation in Human Molar H. Labaf DDs , K. Nazari Moghadam DDs , K. Honardar DDs2 Received: 19/04/06 Sent for Revision: 12/07/06 Received Revised Manuscript: 15/03/07 Accepted: 17/03/07 Background and Objective: One of the great challenges in den...

Journal: :Journal of oral science 2015
Yakup Üstün Hüseyin S Topçuoğlu Firdevs Akpek Tuğrul Aslan

This study evaluated the retention characteristics of ProRoot mineral trioxide aggregate (MTA), RetroMTA, Supra MTA, and Biodentine biomaterials used to repair furcation perforations contaminated with blood. Furcal perforations measuring 1.3 mm in diameter and 2 mm in height were created in 96 mandibular first molar teeth, which were then randomly divided into the following two groups (n = 48):...

Journal: :Journal of endodontics 2010
Masoud Parirokh Mahmoud Torabinejad

INTRODUCTION Mineral trioxide aggregate (MTA) has been recommended for various uses in endodontics. Two previous publications provided a comprehensive list of articles from November 1993-September 2009 regarding the chemical and physical properties, sealing ability, antibacterial activity, leakage, and biocompatibility of MTA. The purpose of Part III of this literature review is to present a co...

Journal: :International journal of oral and maxillofacial surgery 2015
L G R deC Silva S H Kim S M Luczyszyn V Papalexiou A Giovanini L E Almeida V A Tramontina

This work focused on the process of bone repair of defects in standardized calvaria of Wistar rats treated with biphasic calcium phosphate (BCP), mineral trioxide aggregate (MTA), or a combination of the two. Eighty Wistar rats were divided into four treatment groups and were examined at 2 and 8 weeks. A surgical defect was created in the calvaria using a 6-mm diameter trephine drill. The cavit...

Journal: :Annals of neurology 2006
Beatriz Moreno Henar Hevia Monica Santamaria Jorge Sepulcre Javier Muñoz Elena R García-Trevijano Carmen Berasain Fernando J Corrales Matias A Avila Pablo Villoslada

OBJECTIVE To assess the immunomodulatory activity of methylthioadenosine (MTA) in rodent experimental autoimmune encephalomyelitis (EAE) and in patients with multiple sclerosis. METHODS We studied the effect of intraperitoneal MTA in the acute and chronic EAE model by quantifying clinical and histological scores and by performing immunohistochemistry stains of the brain. We studied the immuno...

Journal: :The Journal of Experimental Medicine 1987
J R Rodgers R Smith R R Rich

Mtf, a cytoplasmic, probably mitochondrial factor, controls Mta polymorphism. We tested for dominance between two forms of Mtf to determine whether Mta is controlled by positive or negative genetic mechanisms. We fused Mtf-disparate cells containing distinct mtDNA markers and selected for hybrids containing both. Such mtDNA heteroplasmons codominantly and stably express alternative Mta antigens...

رئوف, مریم, شریفیان, محمدرضا,

سابقه و هدف: تاکنون مواد زیادی جهت پر کردن انتهای ریشه حین جراحی اندودنتیک مورد استفاده قرار گرفته است. خواص مطلوب MTA در مطالعات مختلف in vitro و in vivo ثابت شده است. از سوی دیگر بر اساس مطالعات انجام شدهRoot MTA (MTA ایرانی) و سیمان پرتلند از لحاظ خواص فیزیکی و بیولوژیک مشابه MTA می باشد. هدف از این مطالعه بررسی مقایسه ای تطابق حاشیه ای چهار ماده پر کننده انتهای ریشه ( Root MTA, White Pro ro...

2016
Vahid Zand Mehrdad Lotfi Amirala Aghbali Mehran Mesgariabbasi Maryam Janani Hadi Mokhtari Pardis Tehranchi Seyyed Mahdi Vahid Pakdel

INTRODUCTION Biocompatibility and antimicrobial activity of endodontic materials are of utmost importance. Considering the extensive applications of mineral trioxide aggregate (MTA) in dentistry and antimicrobial properties of silver nanoparticles, this study aimed to evaluate the subcutaneous inflammatory reaction of rat connective tissues to white MTA with and without nanosilver (NS) particle...

Journal: :Journal of endodontics 2006
Mahmut Sumer Mehtap Muglali Emre Bodrumlu Tolga Guvenc

The aim of this study was to histopathologically examine the biocompatibility of the high-copper amalgam, intermediate restorative material (IRM), mineral trioxide aggregate (MTA), and MTA mixed with chlorhexidine (CHX). This study was conducted to observe the rat subcutaneous connective tissue reaction to the implanted tubes filled with amalgam, IRM, MTA, and MTA mixed with CHX. The animals we...

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