نتایج جستجو برای: mta سفید

تعداد نتایج: 10376  

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...

2017
Tahereh Pornamazeh Zahra Yadegari Amir Ghasemi Seyedeh Mahsa Sheykh-al-Eslamian Shiva Shojaeian

Introduction The present study sought to evaluate and compare biocompatibility and setting time of Retro mineral trioxide aggregate (MTA), calcium-enriched mixture (CEM) and Angelus MTA. Methods and Materials CEM cement, Angelus MTA and Retro MTA were assessed in set and fresh states. Extracts transformed to each cavity of three 24-well plates in which 1×104 cell were seeded into each well 24...

Journal: :The Journal of Experimental Medicine 1982
R Smith D P Huston R R Rich

Mta-specific cytotoxic T lymphocyte (CTL) can be generated in primary cultures of (NZB X B10.D2)F1 spleen cells with H-2-compatible BALB/c stimulator cells. The CTL lyse reciprocal Mta+ (B10.D2 X NZB)F1 as well as H-2-disparate targets, such as B10, B6, and B6-Tlaa; they do not lyse targets from NZB or any F1 hybrid of an NZB mother. The lysis of 51Cr-labeled B10 targets is completely inhibited...

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