NEET MDS Shorts
27210
NEETMDS
Radiographic contrast is primarily dependent on the differences in X-ray absorption between adjacent tissues, which is determined by their physical properties, collectively referred to as subject density.
A greater difference in subject density results in higher contrast.
Focal spot width and collimation affect image sharpness and the area of exposure, respectively,
53102
EndodonticsAn apicectomy (or root-end resection) is a minor surgical procedure performed to remove the apex, or very end, of a tooth's root. This procedure is typically necessary when inflammation or infection persists in the bony area around the end of a tooth after a standard root canal procedure has failed. The procedure is often followed by a retrograde filling (retrograde restoration) to seal the end of the root canal.
22533
Dental MaterialsGIC has an anticarious anticariogenic effect, It binds to tooth structure, Does not irritate the pulp tissue
45108
INI CET
MEN-2b includes medullary thyroid carcinoma, pheochromocytoma, mucosal neuromas, and marfanoid habitus. Parathyroid adenoma is a characteristic of MEN-1 and MEN-2a, but is notably absent in MEN-2b.
20776
Oral PathologyPinpoint petechiae on the palate is the most common oral manifestation of infectious mononucleosis.
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.
10112
PhysiologyPernicious anemia is caused by the lack of intrinsic factor, which leads to impaired vitamin B12 absorption and subsequent megaloblastic anemia.
16451
RadiologyIn cephalometric radiography, the distance between the subject and the source of X-ray is 5 feet.
55441
Prosthodontics
31514
Dental Materials
The recommended force for condensing a composite resin using a 0.5 mm diameter condenser nib is 3.75 pounds. This force is considered optimal and is well within the physiologic limits of the tooth.