نتایج جستجو برای: mta سفید

تعداد نتایج: 10376  

Journal: :The Journal of biological chemistry 2007
Bramanandam Manavathi Rakesh Kumar

Regulation of fundamental genetic processes demands dynamic participation of transcription factors, their coregulators, and multiprotein chromatin remodeling activities at target genes. One family of chromatin modifiers that is ubiquitously expressed is the metastasis tumor antigens (MTA), which are integral parts of nucleosome remodeling and histone deacetylation (NuRD) complexes. MTA family m...

حقگو, رزا, عباسی, فرید, ماژپناه, ندا,

سابقه و هدف: پرفوراسیون از دلایل مهم شکست درمان‌های اندودونتیک می‌باشد.در این میان پرفوراسیون‌های فورکا پیش آگهی بدتری دارند. مواد مختلفی برای ترمیم غیر جراحی پرفوریشن‌های فورکا پیشنهاد شده کهMTA یکی از آنها می‌باشد. با توجه به عوارض پرفوراسیون فورکا در مولرهای شیری و با توجه به این مسأله که تمامی مطالعات در زمینه مولرهای دائمی می‌باشند، انجام این مطالعه در دندان‌های شیری ضروری به نظر می‌رسد. ب...

جلایر, دکتر تکتم, حقگو, دکتر رزا,

بررسی موفقیت کلینیکی و رادیوگرافیک MTA ایرانی و خارجی در پالپوتومی مولرهای شیری دکتر رزا حقگو1- دکتر تکتم جلایر2  1- استادیار گروه آموزشی دندانپزشکی کودکان دانشکده دندانپزشکی دانشگاه شاهد. 2- استادیار گروه آموزشی رادیولوژی دهان و فک و صورت دانشکده دندانپزشکی دانشگاه شاهد.  چکیده زمینه و هدف: پالپوتومی معمولترین درمان در دندانهای شیری پوسیده با اکسپوز پالپ می‌باشد. داروهای مختلفی در پالپوتومی اس...

2012
Ehsan Oraie Amir Reza Ghassemi Gholamhosein Eliasifar Masoumeh Sadeghi Arash Shahravan

INTRODUCTION In apical surgery, after apicoectomy and retro-preparation of canal, a retrofil material is applied to seal the apical region of the root canal. Mineral trioxide aggregate (MTA) is the gold standard material for this purpose. Changing water/powder ratios of MTA affects its properties. The purpose of this in vitro study was to determine the effect of liquid/powder ratio of retrofil ...

Journal: :International endodontic journal 2007
J Camilleri

AIM To report the hydration mechanism of white mineral trioxide aggregate (White MTA, Dentsply, Tulsa Dental Products, Tulsa, OK, USA). METHODOLOGY The chemical constitution of white MTA was studied by viewing the powder in polished sections under the scanning electron microscope (SEM). The hydration of both white MTA and white Portland cement (PC) was studied by characterizing cement hydrate...

Journal: :F1000Research 2023

Background: ‘Regenerative endodontics’ using host-derived scaffolds and biomaterials (MTA) is popular in the management of teeth with open apex. Alkaline pH bioactivity contribute to tissue healing remineralization. We assessed influence PRF Blood Clot on Ca+ ion release from MTA. Methods: A total 15 single-roote...

ژورنال: مجله دندانپزشکی 2007
تبریزی‌زاده, مهدی , زندی, هنگامه , محمدی, زاهد , مولانا, عبدالرضا ,

Background and Aim: Incomplete root development caused by trauma ,caries, or pulpal pathosis requires special attention and treatment . Although calcium hydroxide apexification has been used successfully for years but it requires patient cooperation and multiple appointments . Single visit apexification with MTA has been used in recent years. The purpose of this study was to compare bacterial m...

Journal: :Brazilian oral research 2016
Emmanuel Jnl Silva Nancy Kudsi Carvalho Mayara Zanon Plínio Mendes Senna Gustavo DE-Deus Mário Luis Zuolo Alexandre Augusto Zaia

This study was designed to investigate the resistance to dislodgment provided by MTA HP, a new high-plasticity calcium silicate-based cement. Biodentine and White MTA Angelus were used as reference materials for comparison. Three discs 1 ± 0.1 mm thick were obtained from the middle third of the roots of 5 maxillary canines. Three 0.8-mm-wide holes were drilled on the axial surface of each root ...

2015
Letícia Chaves de SOUZA Mamatha YADLAPATI Samuel O DORN Renato SILVA Ariadne LETRA

OBJECTIVE RetroMTA® is a new hydraulic bioceramic indicated for pulp capping, perforations or root resorption repair, apexification and apical surgery. The aim of this study was to compare the radiopacity, pH variation and cytotoxicity of this material to ProRoot® MTA. MATERIAL AND METHODS Mixed cements were exposed to a digital x-ray along with an aluminum stepwedge for the radiopacity assay...

2017
Kui Shi Jiayu Gu Huijun Guo Linshu Zhao Yongdun Xie Hongchun Xiong Junhui Li Shirong Zhao Xiyun Song Luxiang Liu

Chloroplast development is an integral part of plant survival and growth, and occurs in parallel with chlorophyll biosynthesis. However, little is known about the mechanisms underlying chloroplast development in hexaploid wheat. Here, we obtained a spaceflight-induced wheat albino mutant mta. Chloroplast ultra-structural observation showed that chloroplasts of mta exhibit abnormal morphology an...

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