NEET MDS Shorts
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Dental MaterialsMicrofilled composites have a very high surface area with silica particles diameters of 0.04 to 0.2 µm, which provides excellent aesthetic results and polishability.
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PharmacologySotalol is a Class III antiarrhythmic agent that blocks K+ channels, prolongs action potential duration (APD), and lengthens QT interval.
Noncardiac selective beta-adrenergic blocker.
The D-isomer has less than 1/50 beta-blocking activity of the L-isomer.
Sotalol possesses 30% of beta-blocking activity of propranolol
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Oral SurgeryAmong the following, the advantage of oral administration of drugs to achieve conscious sedation is that it is easiest to administer.
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Oral PathologyThe oral lesion of warty dsykeratoma is described as a small whitish area of the mucosa with a central depression
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PathologyEpitheloid cells are a hallmark of granulomatous inflammation, which occurs in response to certain chronic infections (like tuberculosis), autoimmune diseases, and foreign body reactions. In granulomas, epitheloid cells aggregate to form a protective wall around the irritant.
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Conservative DentistryAnnealing gold foil is the process of heating gold to remove impurities and restore its cohesion properties. Annealing of gold foil is a heat treatment process used to alter the physical and sometimes chemical properties of the material. The primary purpose of annealing gold foil is to remove any contaminants and stresses that may be present on the surface of the material. This is achieved by heating the gold foil to a specific temperature, typically around 400°C (750°F), and then allowing it to cool slowly. The process can also help in improving the foil's ductility, making it more malleable and easier to work with. However, the direct effect of annealing on the rigidity, ductility, and proportional limit is not explicitly stated in the question, and thus the correct answer is that annealing of gold foil primarily serves to remove contaminants from the surface.
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PhysiologyAnswer: 4) Increased parathyroid hormone during pregnancy stimulates liberation of calcium ions from maternal bones for the fetus's calcium needs.
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General PathologyHb-electrophoresis is the investigation done to establish the diagnosis of thalassemia, as it separates different hemoglobin types based on their charge.