Powder-liquid Mta
Powder-liquid Mta - Related Videos
09:11
Porosimetry of a Silica Alumina Powder
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2023
Source: Kerry M. Dooley and Michael G. Benton, Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA Surface area and pore size distribution are attributes used by adsorbent and catalyst manufacturers and users to ensure quality control and to determine when products are at the end of their useful lives. The surface area of a porous solid is directly related to its adsorption capacity or catalytic activity. The pore size distribution of an adsorbent or catalyst is...
08:14
Single Crystal and Powder X-ray Diffraction
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2023
Source: Tamara M. Powers, Department of Chemistry, Texas A&M University X-ray crystallography is a technique that uses X-rays to study the structure of molecules. X-ray diffraction (XRD) experiments are routinely carried out with either single-crystal or powdered samples. Single-crystal XRD: Single-crystal XRD allows for absolute structure determination. With single-crystal XRD data, the exact atomic positions can be observed, and thus bond lengths and angles can be determined. This...
02:22
Cryomilling of Decellularized Tissue: A Technique to Obtain Fine Extracellular Matrix Powder
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2023
In this video, we present the protocol to obtain finely ground extracellular matrix powder from lyophilized decellularized tissue by cryomilling. The powdered ECM retains its biochemical composition and can be used for microcarrier synthesis.
14:20
Absolute Quantum Yield Measurement of Powder Samples
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Cited by 16 •
2012
In this video we will demonstrate measuring and calculating absolute quantum yield and chromaticity coordinates directly in powder samples using the Hitachi F-7000 Quantum Yield Measuring System.
09:21
Efficiency of Liquid-liquid Extraction
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2023
Source: Kerry M. Dooley and Michael G. Benton, Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA Liquid-liquid extraction (LLE) is a separation technique used instead of distillation when either: (a) the relative volatilities of the compounds to be separated are very similar; (b) one or more of the mixture components are temperature sensitive even near ambient conditions; (c) the distillation would require a very low pressure or a very high distillate/feed...
FAQs
When the powder is combined with liquid, hydration reactions begin. These reactions generate calcium silicate hydrate and calcium hydroxide. The resulting material hardens while retaining an alkaline character. This chemical transformation explains why the cement can develop a solid barrier after placement in a moist dental environment.
The alkaline environment is a clinically relevant outcome of hydration, rather than merely a description of the finished cement. Along with its bioactive behavior, it contributes to the material’s value in treatments where contact with mineralized tissues and surrounding pulp or root structures matters. This combination helps explain its reported tissue compatibility in endodontic applications.
Powder-liquid MTA can set in a moist environment, an important property because endodontic defects are not necessarily dry during treatment. Moisture tolerance allows the hydrated cement to harden under those clinical conditions instead of requiring a completely dry setting site. The practical result is a material suited to sealing and repairing defects within mineralized tissues.
The preparation sequence starts by combining the MTA powder with its liquid, initiating hydration. The mixed cement is then used at the selected repair or sealing site, where the hydration products develop as it sets. Because the process is moisture tolerant, the clinical setting can support hardening even when the treated endodontic site is moist.
Different clinical problems call for different placement purposes. Clinicians use it for pulp capping when managing pulp-related conditions, root-end filling to seal the terminal portion of a treated root, perforation repair to address an unintended defect, and apexification as part of endodontic management. These indications reflect its sealing and repair functions.
In complex root canal and pulp-related conditions, the material offers several relevant properties at once: it forms a durable seal, hardens in moisture, and exhibits bioactive behavior with tissue compatibility. Clinicians therefore consider it when a defect requires both physical repair and a compatible interface with mineralized tissues, particularly when maintaining completely dry conditions is difficult.