NEET MDS Shorts
50256
Public Health DentistryAn expression of probability based on the ratio of the difference between two means, divided by the standard error of the difference, is known as the t value (or t-statistic). This value is used in hypothesis testing to determine if the means of two groups are significantly different.
91355
Pharmacology
Beta-1 selective blockers
These include atenolol and metoprolol (as well as betaxolol, bevantolol, and perhaps esmolol).
Non-selective beta blockers
propranolol
13784
ProsthodonticsThe denture bearing area is the part of the jawbone that supports a denture. In an edentulous (toothless) mandible, this area is crucial for the stability and retention of the denture. The mean value of 12.25 cm square is a commonly cited average for the surface area required for a well-fitting and functional lower denture. This area is important for distributing masticatory forces and providing sufficient space for denture construction.
47906
General PathologyIntramuscular epinephrine should be administered immediately in the case of an anaphylactic reaction.
43857
ProsthodonticsWhen determining the posterior limit of the maxillary denture, the hamular notch is on the posterior border.
26367
General Medicine
H. pylori produces the enzyme urease, which breaks down urea into ammonia and carbon dioxide, raising the local pH around the bacteria and protecting them from the acidic gastric environment.
30407
Dental Materials
Heating a gypsum cast to a temperature above 90°C will remove water of
crystallization and strengthen it. This process is called "burning out" the
gypsum, and it is used to remove the remaining moisture and improve the cast's
stability and accuracy. Gypsum casts are made by mixing plaster of Paris (calcium sulfate hemihydrate)
with water. When the material sets, it forms calcium sulfate dihydrate crystals
with water molecules trapped within the crystal lattice, known as water of
crystallization. Heating the cast above 90°C causes the water of crystallization
to be released, which results in the cast becoming stronger and more rigid. This
process does not cause the cast to expand but rather to shrink slightly as the
water is removed. Excess gauging water is typically removed during the initial
setting process.
54260
RadiologyThe scientist who discovered that caries was the most common cause of extraction of teeth was Allen.
52981
Oral PathologyA prothrombin level of 20% normal PT is of concern for dental extractions.
56965
INI CET
Peripheral chemoreceptors (carotid and aortic bodies) are stimulated by hypoxia, hypercapnoea, and acidosis. They are not primarily sensitive to hypocapnoea (low CO2).