NEET MDS Shorts
53519
PeriodonticsThe ideal thickness for a graft is typically between 1.0 to 1.5 mm to ensure adequate healing and integration.
97164
Pharmacology
Dimercaprol (British antilewisite; BAL) 1. Poisoning by As, Hg, Au, Bi, Ni, Sb: it is administered i.m., 5 mg/kg stat, followed by 2-3 mg/kg every 4 – 8 hours for 2 days, then once or twice a day for 10 days. It is partly oxidized and glucuronide conjugated, but mainly excreted as such in 4 – 6 hours. Earlier the treatment is instituted, the better it is. Because the dimercaprolmetal complex dissociates faster in acidic urine and the released metal can damage the kidney, urine is alkalinized during dimercaprol therapy. 2. As an adjuvant to Cal. Disod. Edentate in lead poisoning. 3. As an adjuvant to penicillamine in Cu poisoning and in Wilson’s disease – 300 mg/day i.m. for 10 days every second month. It is contraindicated in iron and cadmium poisoning, because the dimercaprol-Fe and dimercaprol-Cd complex is itself toxic.
52616
Oral Medicine
Isoniazid is metabolized by the liver, while streptomycin is metabolized by the kidneys. This is important to consider when administering these drugs, especially in patients with hepatic or renal impairment.
96543
Oral SurgeryDry socket (alveolar osteitis) is a painful condition that occurs after a tooth extraction when the blood clot fails to develop or is dislodged. The exposed bone and nerve endings in the socket cause a dull, aching, and continuous or almost continuous pain, which can be moderate to severe. A key characteristic is the absence of significant swelling or signs of infection (like pus or high fever) in the adjacent tissues, distinguishing it from an infection.
21390
ProsthodonticsThe clinical picture of hairs in black hairy tongue is caused by hyperkeratinized hyperplastic filiform papillae.
63266
Dental Materials
The relationship between zinc concentration and setting expansion is not specified in the given text. However, the presence of zinc in amalgams can affect the rate and extent of setting.
35193
RadiologyZygomatic arch fractures are best viewed in Submentovertex.
50890
Oral PathologyCleidocranial dysostosis is characterized by absent or hypoplastic clavicles, which is the pathognomonic feature of this condition. This allows patients to bring their shoulders together. Osteogenesis imperfecta affects bone fragility, fibrous dysplasia causes fibrous tissue replacement of bone, and osteopetrosis causes marble bone disease, but none of these affect the clavicles specifically.
45628
EndodonticsPulpectomy is the complete removal of the pulp tissue from the pulp chamber and root canals of a tooth. This procedure is the standard treatment for irreversible pulpitis, as the inflamed and infected pulp cannot heal and must be entirely removed to save the tooth and prevent further infection.
31307
Pharmacology
Pyridoxine – drug interactions : INH – induces a pyridoxine deficiency state
Levodopa – pyridoxine promotes peripheral conversion of levodopa to dopamine – thus it decreases therapeutic action of levodopa in the brain
Oral contraceptive pills – decrease pyridoxine levels in some females
Hydralazine – impairment of pyridoxine utilisation
4-deoxy pyridoxine – pyridoxine antagonist