NEET MDS Shorts
97321
Physiology
The macula densa is a specialized group of epithelial cells located in the distal convoluted tubule at the junction with the afferent and efferent arterioles. It plays a role in the tubulo-glomerular feedback mechanism to regulate renal blood flow and glomerular filtration rate.
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ProsthodonticsMost accurate reproducible relationship for recording jaw relation is centric relation.
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Oral SurgerySerum sickness is a type III hypersensitivity reaction that typically occurs 7 to 21 days (1 to 3 weeks) after initial exposure to the offending antigen, which is the time required for the immune system to produce antibodies that form immune complexes with the antigen.
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General Medicine
Albumin is mainly involved in osmotic regulation and serves as a carrier protein for various substances, including bilirubin and fatty acids. However, it is not a primary carrier for thyroid hormones, which are mainly transported by thyroxine-binding globulin.
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ProsthodonticsUnder occlusal loading, the fulcrum line of a Kennedy Class I RPD runs through the most posterior occlusal rests. These rests act as the fulcrum points around which the denture base tends to rotate under load. The denture base moves away from the tissues in a seesaw motion around this fulcrum line.
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Oral PathologyJunctional nevi are moles where the nevus cells (melanocytes) are located at the junction of the epidermis (outer layer of skin) and the dermis (inner layer of skin). Because they are in the basal layer of the epidermis, where melanomas originate, they have a higher potential for malignant transformation into melanoma compared to intradermal nevi, where cells are deeper in the dermis. Lichen planus and papillomas are generally benign conditions
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Oral SurgeryHow many mg of 2% lidocaine present in the cartridge is 36 mg.
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Prosthodontics
FPDs are generally contraindicated for several reasons: Growth and Development: Children are still in their
growth phase, and their jaws and teeth are developing. Placing a fixed
prosthesis can interfere with normal growth patterns and may require
adjustments or replacements as the child grows. Eruption of Permanent Teeth: In younger patients,
especially those under 10, many of the permanent teeth have not yet erupted.
Using FPDs in this age group can complicate future dental treatments, as the
position of the teeth may change with the eruption of permanent teeth.
53102
EndodonticsAn apicectomy (or root-end resection) is a minor surgical procedure performed to remove the apex, or very end, of a tooth's root. This procedure is typically necessary when inflammation or infection persists in the bony area around the end of a tooth after a standard root canal procedure has failed. The procedure is often followed by a retrograde filling (retrograde restoration) to seal the end of the root canal.
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Dental Materials
A wax pattern made in the mouth will shrink appreciably as it is cooled to room temperature because the coefficient of thermal expansion of wax is very high.(This is the property which describes the thermal energy transport in watts per second through a specimen 1cm thick with a cross sectional area of 1 cm2 when the temperature differential between the surfaces of the specimen perpendicular to the heat flow 10 K) Co efficient of thermal expansion is defined as the change in length per unit of the original length of a material when its temperature is raised 10K.