نتایج جستجو برای: mineral trioxid aggregate

تعداد نتایج: 109861  

2011
RK Tewari SK Mishra Ashok Kumar Amit Kumar Garg MK Jindal Harish Juneja

AIM To examine the clinical and radiographic appearance of teeth with immature apices that were treated by single step procedure using mineral trioxide aggregate (MTA). SUMMARY Creation of a physiological hard tissue barrier with calcium hydroxide in a nonvital tooth although quite predictable has certain limitations, such as the very long duration of the treatment spread over multiple visits...

Journal: :Biomaterials 2004
Yuan-Ling Lee Bor-Shiunn Lee Feng-Huei Lin Ava Yun Lin Wan-Hong Lan Chun-Pin Lin

Utilizing scanning electron microscope, X-ray diffraction (XRD) and microhardness tests, we evaluated how various physiological environments affect the hydration behavior and physical properties of mineral trioxide aggregate (MTA). We found that the microstructure of hydrated MTA consists of cubic and needle-like crystals. The former comprised the principal structure of MTA, whereas the later w...

Journal: :Journal of endodontics 2004
Marat Tselnik J Craig Baumgartner J Gordon Marshall

The purpose of this study was to evaluate gray mineral trioxide aggregate (MTA), white MTA, and Fuji II LC cement as coronal barriers to bacterial leakage. Seventy-eight, matched, human teeth were obturated with gutta-percha. In group I, 18 pairs received a 3-mm barrier of gray or white MTA. In group II, 18 pairs received a 3-mm barrier of gray MTA or Fuji cement. Three pairs were used as posit...

Journal: :Journal of dentistry 2015
Mehrfam Khoshkhounejad Noushin Shokouhinejad Salma Pirmoazen

Endodontic intervention in necrotic immature permanent teeth is usually a clinical challenge. With appropriate case selection, regenerative treatment can be effective, providing a desirable outcome. However, there is still no consensus on the optimal disinfection protocol or the method to achieve predictable clinical outcome. This article presents two cases of regenerative treatment in necrotic...

2011
K. S. Ravi Amit Vanka N. D. Shashikiran

Mineral trioxide aggregate (MTA), has been successfully used in difficult endodontic situations such as immature pulp less teeth and vital pulp therapy. Portland cement (PC), which forms the bulk of MTA, has been reported to exhibit similar properties. The physical properties and biocompatibility of PC has been researched in vitro and on animals, with a few studies on humans as well. This artic...

2014
Lucas da Fonseca Roberti Garcia Hebert Luis Rossetto Fernanda de Carvalho Panzeri Pires-de-Souza

OBJECTIVE To evaluate the shear bond strength of a novel calcium aluminate-based cement, EndoBinder (EB), to dentine in comparison with Grey and White Mineral Trioxide Aggregate (MTA). MATERIALS AND METHODS Root canal hemi-sections obtained from 30 extracted molar teeth were embedded in self-polymerized acrylic resin and were grounded wet in order to obtain a flat dentine surface. Next, the r...

2015
R Sharifi A Araghid S Ghanem A Fatahi

Introduction: Mineral trioxide aggregate (MTA) has numerous applications in dentistry due to various advantages. However, its long setting time has still remained a problem. The current study was conducted to investigate the effect of temperature (ambient and distilled water temperature) on the setting time of mineral trioxide aggregate (MTA). Materials and methods: This experimental study comp...

2015
Eun-Su Lim Young-Bae Park Young-Sun Kwon Won-Jun Shon Kwang-Won Lee Kyung-San Min

BACKGROUND The aim of this study was to investigate the physical properties and biological effects of an experimentally developed injectable premixed calcium-silicate root canal sealer (Endoseal) in comparison with mineral trioxide aggregate (MTA) and a resin-based sealer (AHplus). METHODS The pH, solubility, dimensional change, flow, and radiopacity of the materials were evaluated. Biocompat...

2014
Vinod Kumar Mohammed Zameer Vijaya Prasad T Mahantesh

Single visit apexification using mineral trioxide aggregate (MTA) is a new boon in effective management of nonvital tooth with an open apex which has steadily gained popularity with clinicians; also it shortens the treatment period and improves patient compliance. Importance of this approach lies in expedient cleaning and shaping of the root canal system, followed by its apical seal with MTA. T...

2014
Álvaro Henrique Borges Maura Cristiane Gonçales Orçati Dorileo Ricardo Dalla Villa Alexandre Meireles Borba Tereza Aparecida Delle Vedove Semenoff Orlando Aguirre Guedes Cyntia Rodrigues Araújo Estrela Matheus Coelho Bandeca

The solubility, pH, electrical conductivity, and radiopacity of AH Plus and MTA FillApex were evaluated. In addition, the surfaces morphologies of the sealers were analyzed by using scanning electron microscopy. For pH test, the samples were immersed in distilled water at different periods of time. The same solution was used for electrical conductivity measurement. The solubility and radiopacit...

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