NEET MDS Shorts
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State PSC PYQ
Oral lichen planus is a T-cell mediated autoimmune disease. IFN-γ and TNF-α are present in lesions and involved in its pathogenesis. IFN-γ is the key cytokine in cellular immune response.
80181
Oral PathologyMyositis ossificans would NOT cause pathologic fractures of maxilla or mandible because it involves ossification within muscle tissue, not weakening of existing bone structure. Bone cysts, multiple myeloma, and giant cell tumor all cause bone destruction and weakening, predisposing to pathologic fractures. Myositis ossificans actually adds calcified tissue rather than destroying bone.
89379
General MedicineHutchinson's pupil is a clinical sign where one pupil becomes dilated and unresponsive to light due to compression of the third cranial nerve (oculomotor nerve), often caused by an intracranial mass or hemorrhage. The condition is typically unilateral, meaning it affects only one eye.
78656
ProsthodonticsBefore altering the abutment contour for clasp retention, it is essential to establish the guiding planes. This is done by disking the proximal surfaces of the abutment teeth to create a flat, smooth surface that will guide the RPD during insertion and removal. Once the guiding planes are in place, the contour of the abutment can be altered to accommodate the placement of the retentive elements such as rests and minor connectors.
25608
NEETMDS
A dental floss safety ligature is tied to the bow to allow for retrieval of the clamp if it becomes dislodged, preventing the patient from accidentally swallowing or aspirating it.
25456
INI CET
The rubber dam is the gold standard for isolation in endodontics and vital pulp therapy as it ensures an aseptic field and prevents bacterial contamination from saliva.
20402
EndodonticsExplanation: Class IV in the Ellis classification indicates a fracture that has resulted in pulp exposure, often leading to a non-vital tooth. Class IV: Crown Fracture with Pulp Involvement Description: Extensive fracture involving enamel, dentin, and pulp, often with significant loss of tooth structure.Endodontic Consideration: Endodontic treatment is necessary due to pulp exposure. The tooth may require additional restorative procedures after root canal therapy to restore function and aesthetics.
68172
PathologyFat Embolism is diagnosed by - 1. Fluffy Exudates in Retina 2. Fat Droplets in Sputum 3. Fat droplets in Urine
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General MicrobiologyA positive oxidase test for Neisseria colonies results in a deep purple coloration.
48901
Physiology
Stimulation of the cholinergic system can lead to increased penile erection due to the vasodilation of blood vessels in the penis, allowing for greater blood flow and engorgement of the corpora cavernosa.