NEET MDS Shorts
13769
Conservative DentistryThe C-factor is the ratio of bonded to unbonded surfaces in a dental restoration. When the C-factor increases, there are more bonded surfaces relative to the free surfaces where the composite can flow to relieve stress. This increased constraint leads to higher polymerization shrinkage stress and, consequently, greater overall shrinkage in the restoration.
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PhysiologyThe primary role of the cephalic phase of gastric acid secretion is the secretion of gastric juices in response to the thought or smell of food, preparing the digestive system for incoming food.
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RadiologyA bilateral asymptomatic cyst-like radiolucent lesion in a 7-year-old boy at the angle of the mandible may be diagnosed as cherubism.
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Oral SurgeryPyemia is the presence of pyogenic (pus-forming) organisms in the circulating blood, which leads to the formation of metastatic abscesses.
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Physiology
The reticular activating system (RAS) is involved in the regulation of wakefulness and arousal by modulating the transmission of sensory information to the thalamus and cortex and by influencing the release of neurotransmitters that promote alertness.
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NEETMDS
The Tanaka-Johnston analysis uses the mesiodistal width of the mandibular incisors to predict the combined width of the unerupted canine and premolars.
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NEETMDS
Lacrimation during mastication, often referred to as Bogorad/s syndrome or "crocodile tears," is caused by aberrant regeneration of the auriculotemporal nerve after injury, usually due to trauma or surgery involving the parotid gland. The regenerated parasympathetic fibers intended for the parotid gland mistakenly innervate the lacrimal gland, leading to tearing instead of salivation upon eating.
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NEETMDSThe vastus lateralis muscle in the thigh is considered the safest and preferred site for intramuscular injections in infants and young children because it is a large, well-developed muscle with a relatively low risk of nerve or blood vessel damage. Other sites like the deltoid or gluteus maximus are generally not recommended for young children due to the risk of injury to the radial or sciatic nerves, respectively.
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General PathologyReticulocytosis is commonly seen in hemolytic anemia, where there is increased production of red blood cells in response to anemia.
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Periodontics
The most prominent immunoglobulin in sulcular fluid is IgG.
Sulcular fluid is the fluid found in the space between the tooth and the
surrounding gingival tissue. It contains various immunoglobulins that contribute
to the local immune defense against oral pathogens. While IgA is the most common
immunoglobulin found in saliva, which is closely related to the oral cavity, the
most prominent immunoglobulin in sulcular fluid is actually IgG. IgG is the most
abundant antibody in the blood and can be found in various bodily fluids,
including sulcular fluid, where it provides protection against infections and
inflammation. IgE is associated with allergic reactions, IgM with early immune
responses, and IgA with mucosal surfaces