NEET MDS Shorts
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RadiologyThe technique employed in radiotherapy to counteract the effect of tumour motion due to breathing is known as gating.
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General Medicine
In minimal-change disease, the primary mechanism of proteinuria is thought to be increased permeability of the glomerular capillary wall to proteins due to changes in the glomerular basement membrane, rather than structural damage to the membrane itself.
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PhysiologyThe cephalic phase of gastric acid secretion is initiated by the parasympathetic system and is triggered by the sight, smell, or thought of food. It accounts for approximately 20% of total acid secretion and prepares the stomach for digestion even before food arrives.
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Oral SurgeryWhile the buccal nerve block is used to anesthetize the buccal mucosa and buccal gingival tissues of the maxillary molars, the actual technique does not typically produce any specific subjective symptoms in the patient other than the sensation of the needle. The patient may feel numbness if the anesthetic solution is inadvertently placed in the oral mucosa or if the block is done improperly.
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EndodonticsIn the walking bleach procedure, sodium perborate is the primary technique used. The walking bleach method involves: 1) Mixing sodium perborate with water or 3% hydrogen peroxide to form a paste, 2) Placing this mixture in the pulp chamber of endodontically treated teeth, 3) Sealing the access cavity with temporary restoration, 4) Patient returns after 3-7 days for evaluation and possible reapplication. Sodium perborate releases oxygen slowly, providing sustained bleaching action. HCl is used in microabrasion, not walking bleach.
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BiochemistryThe eye change include an increase in blood vessels and inflammation of the conjunctivae, cornea is invaded by capillaries, producing opaque areas and even ulceration. Dermatitis characterized by a greasy and scaly reddened lesion develops on the skin around the nasolabial folds and may extend to a butterfly shape on the cheeks. There many also be lesions at the corners (canthi) of the eyes and lobes of the mouth.
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Oral PathologyTic douloureux, also known as trigeminal neuralgia, is a condition characterized by severe facial pain. It is associated with the trigeminal nerve (cranial nerve V), which is responsible for sensation in the face and motor functions such as biting and chewing.
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Oral SurgeryThe rate of distraction in osteogenesis distraction surgeries is typically 1 mm/day, allowing for gradual bone formation.
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INI CET
Acute necrotizing ulcerative gingivitis (ANUG) is characterized by painful, bleeding gums, ulceration of the interdental papillae, and bone loss. Pocket formation is a feature of chronic periodontitis, not typically ANUG, as the acute necrosis leads to a loss of tissue rather than the formation of deepened gingival pockets.
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NEETMDS
Epithelial cells migrate rapidly to the root surface and form a new epithelial attachment via hemidesmosomes within approximately one week following periodontal surgery.