NEET MDS Shorts
64200
PeriodonticsA black line on the gingiva which follows the contour of the margin is due to mercury.
45482
State PSC PYQThe classification uses a Venn diagram to combine multiple occlusal characteristics.
93815
PeriodonticsA contraindication for distal wedge removal for periodontal surgery in the mandibular molar area is insufficient space between the distal molar and ascending ramus.
65285
EndodonticsThe main objective of obturation is to fill the canal and prevent apical percolation of fluids. This primary goal involves: 1) Creating a fluid-tight seal at the apical foramen, 2) Preventing bacterial penetration from oral cavity, 3) Eliminating pathways for tissue fluid seepage, 4) Preventing recontamination of treated root canal system. While preventing discoloration and providing support for restoration are secondary benefits, the fundamental purpose is to achieve biological seal that prevents apical periodontitis by eliminating bacterial access to periapical tissues.
71889
General PathologyThe symptoms described are indicative of primary hypoparathyroidism, which can occur after surgical removal of the parathyroid glands.
95085
NEETMDS
Enameloplasty involves reshaping deep pits and fissures to create U-shaped, self-cleansing grooves. This makes the tooth surface less susceptible to decay and easier to clean through normal oral hygiene.
54637
PedodonticsThe most important modification of amalgam restorations on primary teeth is cavity preparation (Answer: 2). Unlike permanent teeth, primary teeth have a thinner enamel layer and a larger pulp chamber relative to their size. Therefore, the cavity preparation must be done with caution to avoid pulp exposure and ensure the longevity of the restoration.
47668
EndodonticsThe wrong statement about obturation is that silver cones are recommended for canals in which posts are placed. Actually: 1) Silver cones ARE recommended for fine tortuous canals where gutta-percha placement is difficult, 2) McSpadden compactors DO operate at 6000-10,000 rpm, 3) Silver cones are NOT recommended for post preparation because they are difficult to remove and can corrode, 4) Gutta-percha is preferred for post cases as it can be easily sectioned and removed. Silver cones create problems during post preparation due to their metallic nature and removal difficulty.
78221
General Medicine
Angiotensinogen is converted to angiotensin II by the action of renin and angiotensin-converting enzyme (ACE). Angiotensin II is a potent vasoconstrictor and stimulates the release of aldosterone from the adrenal cortex, leading to sodium and water retention and an increase in blood pressure.
84145
OrthodonticsFor an 8-year-old patient with skeletal anterior open bite, treatment involves Frankel appliance combined with high-pull headgear to control vertical growth and promote proper jaw development.