NEET MDS Shorts
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NEETMDSThe key clinical and radiographic findings are pulp chamber obliteration (calcific metamorphosis) with normal periapical and periodontal ligament spaces, indicating a vital, but discolored, tooth. Since the tooth is vital and has no evidence of pathology requiring root canal treatment, a conservative cosmetic solution like a porcelain veneer is the most appropriate management to address the discoloration after external bleaching has failed. Root canal treatment is not indicated for a vital tooth without pulpal pathology.
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General Medicine
The toxic injury in Wilson’s disease primarily affects the basal ganglia, leading to extrapyramidal symptoms such as dystonia, incoordination, tremor, dysphagia, dysarthria, memory loss, and seizures. However, sensory abnormalities and muscular weakness are not typical features of the disease.
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General MedicineAtherosclerosis is inversely proportional to HDL level. HDL (High-Density Lipoprotein) is protective against atherosclerosis as it transports cholesterol from peripheral tissues to the liver for disposal. Higher HDL levels reduce atherosclerotic risk, while LDL, VLDL, and chylomicrons promote atherosclerosis.
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Oral PathologySpontaneous bleeding is a key indicator for considering leukemia in differential diagnosis.
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RadiologyGrid is used in radiography to reduce fogging.
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ProsthodonticsWhen replacing all missing maxillary incisors with PFM restorations, both canines and first premolars should be used as abutments. The four missing incisors create a large span requiring additional support beyond just the canines. Including the first premolars provides better force distribution, stability, and reduces stress on individual abutments, improving long-term prognosis.
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OrthodonticsIf the coil and tag of a palatal canine retractor are placed too far distally, the force applied will tend to move the tooth buccally (toward the cheek) rather than palatally (toward the palate), which can hinder the intended movement.
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Physiology
The parasympathetic nervous system acts on muscarinic receptors (specifically M2 receptors) in the heart to decrease the heart rate and atrial contractility, thereby contributing to a resting state and energy conservation.
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ProsthodonticsIn an impression of the edentulous mandibular arch, all of the following anatomic landmarks will appear as depressions or grooves, except retromylohyoid space.
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PedodonticsThe Russell periodontal index is calculated by adding all the tooth scores and dividing by the number of teeth examined.