NEET MDS Shorts
18486
Conservative DentistryExplanation: The lingual approach to the distal surface of a canine for Class III amalgam restoration is primarily related to aesthetics. This approach minimizes visibility of the restoration from the facial aspect, which is important for maintaining the natural appearance of the tooth. Aesthetic considerations are particularly significant in anterior teeth, where the visibility of restorations can impact the overall smile and facial aesthetics. While retention, outline form, and resistance are important factors in cavity preparation, the lingual approach is specifically chosen to enhance the aesthetic outcome.
43505
General Medicine
Transferrin is a glycoprotein synthesized by the liver that acts as the primary iron-transport protein in the blood. It binds to iron and transfers it to cells that require it, such as erythrocytes for hemoglobin synthesis.
88049
PhysiologyAntidiuretic hormone (ADH) increases water reabsorption in the nephron, particularly in the collecting ducts, by making them more permeable to water.
79994
Pharmacology
ACE inhibition has a beneficial impact on survival rates, functional status, and hemodynamics in patients with left ventricular systolic dysfunction.
In the renin-angiotensin system, a fall in perfusion pressure stimulates the juxtaglomerular cells in the kidney to release the enzyme renin.
Renin cleaves the decapeptide angiotensin I from angiotensinogen, a glycoprotein synthesized in the liver.
The octapeptide angiotensin II is formed by the action of ACE on angiotensin I.
Angiotensin II is a potent vasoconstrictor and stimulates the release of aldosterone and norepinephrine.
34450
Dental Materials
Goldent is a form of direct gold restoration where pellets of powdered gold are wrapped in a No. 3 gold foil. The foil acts as a container for the gold particles and allows for better handling and condensation during placement. Each pellet contains approximately 95% powdered gold and 5% gold foil, making it more economical than using gold foil alone for restorations.
22883
INI CET
Cystic fibrosis follows an autosomal recessive inheritance pattern. Osteogenesis imperfecta and Achondroplasia are typically autosomal dominant, while Treacher Collins is most commonly dominant but can rarely be recessive.
39885
ProsthodonticsOral examination of an edentulous patient should include digital palpation to evaluate undercut areas better.
40326
ProsthodonticsThe width of a palatal strap should not be less than 8mm to provide adequate rigidity and strength. A palatal bar is narrower (typically 4-6mm), while the strap is wider to distribute forces over a larger area. The increased width of the strap provides better support and reduces tissue pressure per unit area.
66811
ProsthodonticsSelective grinding is a technique used to adjust the occlusion of complete dentures. It is best performed after the dentures have been processed and rearticulated with a new series of jaw relations to ensure that the occlusion is accurate and reflects the patient's current jaw relationship. This allows for more precise adjustments to be made, as the original records may not accurately represent the current occlusal relationship after processing.
80072
Prosthodontics
Chroma refers to the purity or saturation of a
color, distinguishing it from its brightness (value) or hue. In dental
color-matching, chroma is an essential factor when selecting materials for
aesthetic restorations.