NEET MDS Shorts
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ProsthodonticsThe initial step in surveying casts for an RPD is the establishment of guiding planes. These planes are essential for determining the path of insertion and removal of the denture, which in turn affects the overall stability and function of the prosthesis. Once the guiding planes are established, other steps such as identifying undercuts for retention and aesthetic considerations can be addressed.
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PeriodonticsMaintenance therapy is designed to support the long-term health of periodontal
tissues after initial treatment. By regularly monitoring and managing
periodontal disease, practitioners can help prevent disease recurrence and
maintain periodontal health.
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ProsthodonticsTo make an impression of hyperplastic tissue, one should ensure intimate contact of the impression material with the tissue.
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General MicrobiologyC1. Perfringens colonies are typically nonmotile and do not form capsules. They will be surrounded by a zone of opacity on the half without antitoxin due to the Nagler reaction (option 1) and will not ferment lactose to produce bright pink colonies on MacConkey’s medium
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Orthodontics
The high labial-bow is typically used for molar retraction and is not designed for incisor retraction. In contrast, Roberts retractors, split labial-bows, and apron springs are all instruments that can be used effectively for retracting incisors during orthodontic treatment.
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PhysiologyThe sodium-calcium exchanger (NCX) is involved in the regulation of calcium levels in cells. It exchanges three sodium ions (Na+) for one calcium ion (Ca2+), thereby helping to maintain intracellular calcium homeostasis.
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Dental Material
To impart a hardening heat treatment to a dental gold alloy, the best method is to Reheat to 450°C and cool uniformly to 250°C over a period of 15 to 30 minutes
Reheating the casting to 450°C and then allowing it to cool uniformly to 250°C over 15 to 30 minutes is a method known as "solution annealing." This process is indeed used to harden dental gold alloys. Solution annealing involves heating the alloy to a temperature where the primary phase (usually gold) goes into solution with the secondary phase (typically a harder metal like palladium, silver, or copper). This creates a homogeneous structure that, when cooled slowly, leads to the precipitation of the secondary phase and subsequent hardening.
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PharmacologyEthohepatazine is a chemical derivative of meperidine