نتایج جستجو برای: سمان mta

تعداد نتایج: 2979  

Journal: :The journal of contemporary dental practice 2013
Gisselle Moraima Chávez-Andrade Milton Carlos Kuga Marco Antonio Hungaro Duarte Renato de Toledo Leonardo Katia Cristina Keine Arnaldo Sant'Anna-Junior Marcus Vinicius Reis Só

AIM This study investigated the flowability, setting time, pH, calcium release and bond strength of a MTA-based cement (MTA Fillapex(®)) compared to AH Plus and Sealapex. MATERIALS AND METHODS For the flowability test, the ISO 6876:2001 specification was utilized and for the setting time test, the ASTM C266-03 specification was utilized. For the pH and calcium release measurements, 10 samples...

2016
Ya-juan Guo Tian-feng Du Hong-bo Li Ya Shen Christophe Mobuchon Ahmed Hieawy Zhe-jun Wang Yan Yang Jingzhi Ma Markus Haapasalo

BACKGROUND To investigate the physical properties and the hydration behaviour of the fast-setting bioceramic iRoot FS Fast Set Root Repair Material (iRoot FS) and three other endodontic cements. METHODS iRoot FS, Endosequence Root Repair Material Putty (ERRM Putty), gray and white mineral trioxide aggregate (G-MTA & W-MTA), and intermediate restorative material (IRM) were evaluated. The setti...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی مشهد - دانشکده دندانپزشکی 1393

مقدمه: رستوریشن های با بیس سرامیک زیرکونیا به دلیل استحکام و سختی بالا، زیبایی قابل قبول، پایداری شیمیایی و سازگاری زیستی در دندانپزشکی محبوبیت پیدا کرده اند.روشهای مختلفی برای آماده سازی سطحی زیرکونیا معرفی شده که یکی از آنها استفاده از لیزر nd:yag می باشد. هدف از این مطالعه بررسی تاثیر آماده سازی سطحی زیرکونیا با لیزر nd:yag و همچنین مقایسه ی استحکام باند برشی زیرکونیا به عاج دندان در دو سمان...

2012
Ali Kangarlou Samira Sofiabadi Saeed Asgary Faranak Mahjour Omid Dianat Zahra Yadegari Farnaz Younessian

BACKGROUND Fungi may play a key part in periradicular diseases. The aim of this study was to evaluate and compare the antifungal properties of two root-end filling materials, ProRoot Mineral trioxide aggregate (MTA) and MTA-Angelus, against Candida albicans using tube-dilution test. MATERIALS AND METHODS The antifungal properties of ProRoot MTA and MTA-Angelus against C. albicans was assessed...

2006
Frank-Erik de Leeuw

Background and Purpose—Medial temporal lobe atrophy (MTA) is a hallmark of Alzheimer disease (AD). Its progression is often seen during the course of AD, but its frequency and risk factors remain unclear. Methods—We investigated MTA in 35 patients with AD from whom sequential magnetic resonance imaging scans were available. White matter lesions (WML; for the periventricular [PV] and subcortical...

Journal: :Clinical cancer research : an official journal of the American Association for Cancer Research 2016
Desamparados Roda Begoña Jimenez Udai Banerji

Tolerability of molecularly targeted agents (MTA) used in cancer therapeutics is determined in phase I trials. We reviewed the reported incidence of toxicity in phase III trials at doses and schedules recommended by phase I trials to evaluate whether these recommendations are realistic when drugs are used in larger populations of patients. We systematically reviewed a safety profile of small mo...

2017
Mohammad Samiei Negin Ghasemi Naser Asl-Aminabadi Baharak Divband Yasamin Golparvar-Dashti Sajjad Shirazi

BACKGROUND This study was carried out to evaluate the biocompatibility of zeolite-silver-zinc (Ze-Ag-Zn) nanoparticles and their effect on the compressive strength of Mineral Trioxide Aggregate (MTA). MATERIAL AND METHODS Biocompatibility was evaluated by an MTT assay on the pulmonary adenocarcinoma cells with 0.05, 0.1, 0.25, 0.5, 1 and 5 mg/mL concentrations of Ze-Ag-Zn. For compressive str...

Journal: :Plant physiology 2012
Ishari Waduwara-Jayabahu Yasmin Oppermann Markus Wirtz Zachary T Hull Sarah Schoor Alexander N Plotnikov Rüdiger Hell Margret Sauter Barbara A Moffatt

5'-Methylthioadenosine (MTA) is the common by-product of polyamine (PA), nicotianamine (NA), and ethylene biosynthesis in Arabidopsis (Arabidopsis thaliana). The methylthiol moiety of MTA is salvaged by 5'-methylthioadenosine nucleosidase (MTN) in a reaction producing methylthioribose (MTR) and adenine. The MTN double mutant, mtn1-1mtn2-1, retains approximately 14% of the MTN enzyme activity pr...

2011
Naiana Viana Viola Mário Tanomaru Filho Paulo Sérgio Cerri

Introduction: Both Mineral Trioxide Aggregate (MTA) and Portland cement (PC) have been highlighted because of their favorable biological properties, with extensive applications in Endodontics, including the possibility of using into root canal filling. Objective: This article reviews literature related to MTA and PC comparing their physical, chemical and biological properties, as well as their ...

2010
Therese Montgomery Harald Sitte Gethin McBean

Background 3,4-Methylenedioxymethamphetamine (MDMA or ‘ecstasy’) tablets are frequently contaminated by 4-MTA (‘flatliner’), an amphetamine derivative which is known to induce severe human intoxication and even death. Although an equipotent inducer of SERT-dependent 5-HT release in vivo, 4-MTA does not induce MDMAlike serotoninergic neurotoxicity in rats. Instead, 4-MTA users typically report u...

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