NEET MDS Shorts
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Periodontics
Gingival recession is more prevalent on the labial (cheek or lip side) surface of teeth compared to the lingual (tongue side) surface. This is often due to the thinner bone and gingival tissue on the labial aspect, as well as the effects of toothbrushing.
Gingival recession is typically more common in adults than children.
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PhysiologyGastrin is released from G cells in the antral mucosa of the stomach in response to the presence of food. It stimulates the parietal cells of the stomach to secrete hydrochloric acid and intrinsic factor, contributing to the gastric phase of acid secretion.
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Dental Anatomy9 months of age, is the usual eruption time for primary lower lateral incis
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Pharmacology
Heparin-associated thrombocytopenia may be associated with irreversible aggregation of platelets and treating venous thromboembolism. The incidence of thrombocytopenia after administration of LMWH is lower than with standard heparin. Adverse drug reactions like those caused by standard heparin have been seen during therapy with LMWH, and overdose is treated with protamine.
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General PathologyCytokeratin positivity in an undifferentiated malignant tumor suggests that the tumor is likely a carcinoma, as cytokeratins are markers for epithelial cells.
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Conservative DentistryEmery is a polishing agent that can be used to polish amalgam restorations. It is a natural abrasive material that is relatively safe for metal surfaces and does not cause significant wear on the amalgam. Garnet, silex, and alumina are also abrasive materials, but they are less commonly used for polishing amalgam due to potential issues with scratching or wearing down the restoration.
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RadiologyQuality of the x-ray beam is dependent on the temperature of the cathode filament.
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Radiology30 degrees occipitomental view is best for viewing both the rim of the orbit and floor of the orbit. This angulation provides excellent visualization of the orbital margins and floor without excessive superimposition, making it ideal for detecting orbital fractures.
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PedodonticsThe PMA index measures the severity of gingivitis and periodontitis.
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Oral SurgeryA bilateral inferior alveolar nerve block is not inherently contraindicated. It is commonly performed in cases requiring surgery on both sides of the mandible. However, it should be done with caution in patients with certain medical conditions or anatomical variations that could increase the risk of complications. It is important to assess each patient individually before administering the block.