NEET MDS Shorts
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Pharmacologycephalosporin are bactericidal, are potentially cross allergenic with penicillin, resistant to penicillinase
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Pharmacology
Phenytoin inhibits insulin secretion and causes hyperglycemia.
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Conservative DentistryIn a Class III cavity preparation, which typically involves the anterior teeth and is located on the proximal surfaces, the axial wall is considered the base. This wall is oriented parallel to the long axis of the tooth and provides support for the restoration. The gingival wall is also important, but the axial wall is the primary base in this context.
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General MicrobiologyPrions are infectious proteins that are highly resistant to destruction by proteases and other methods that typically degrade proteins. This resistance is what allows them to persist in the host and cause disease. They do not contain nucleic acid, which is a hallmark of other types of infectious agents such as bacteria, viruses, and fungi.
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PeriodonticsPlasma cell gingivitis is seen in individuals who chew peppermint-flavored chewing gum.
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Physiology
The epithelial cells of the villi in the small intestine contain various digestive enzymes and microvilli that increase the surface area for nutrient absorption. These cells are crucial for the final stages of digesting carbohydrates and proteins, as well as for the absorption of nutrients.
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Oral SurgeryAngina during dental extraction in cardiac patients is most commonly precipitated by the psychological stress of pain and anticipation rather than the anesthetic agent itself. The sympathetic nervous system activation due to anxiety and fear increases heart rate, blood pressure, and myocardial oxygen demand, which can trigger anginal episodes in susceptible patients.
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Orthodontics
SOLUTION Altered respiratory pattern, such as breathing through the mouth rather than the nose, could change the posture of the If these postural changes were maintained, face height would increase, and posterior teeth would super-erupt;
head, jaw, and tongue. This in turn could alter the equilibrium of pressures on the jaws and teeth and affect both jaw growth and tooth position.
In order to breathe through the mouth, it is necessary to lower the mandible and tongue, and extend (tip back) the head.
unless there was unusual vertical growth of the ramus, the mandible would rotate down and back, opening the bite
anteriorly and increasing overjet; and increased pressure from the stretched cheeks might cause a narrower maxillary dental arch.
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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.
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General MedicineMyocardial infarction is usually due to thrombus formation. Rupture or erosion of an atherosclerotic plaque triggers platelet aggregation and thrombus formation, completely occluding the coronary artery. This acute occlusion leads to myocardial necrosis.