NEET MDS Shorts
24614
Pharmacologyendorphins are endogenous molecules having morphine like properties
94139
Oral PathologyDiastema (spacing between teeth) is never directly associated with TMJ pathosis. TMJ disorders commonly cause open bite due to condylar resorption or growth disturbances, closed bite due to posterior teeth super-eruption, and traumatic occlusion due to altered mandibular positioning. Diastema is typically related to tooth size-arch length discrepancies, developmental factors, or periodontal disease, not TMJ dysfunction.
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PedodonticsSevere and acute periodontal disease in AIDS patients is due to reduced number of T cells.
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Oral Surgery
Chromic catgut sutures are natural absorbable sutures
made from purified collagen of animal intestine, treated with chromium salts. The chromic treatment delays absorption compared to
plain catgut, making them last longer in tissues. Absorption time: Plain catgut: ~7 days Chromic catgut: ~18–21 days Catgut treated for extended absorption: may last
up to 90 days in some cases
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PeriodonticsThe early effects of primary trauma from occlusion can include hemorrhage and thrombosis in the periodontal ligament, leading to inflammation and potential tissue damage.
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Dental Materials
Zinc polycarboxylate cement is favored as a luting agent for its chemical bonding capability with tooth structure.
22295
State PSC PYQSplinting mobile teeth helps to stabilize them by distributing the forces of chewing (occlusal forces) across a wider area, which reduces trauma to individual teeth and supporting structures. This stabilization is considered the primary objective in periodontal therapy. While it may indirectly help prevent further bone loss or improve comfort, the direct mechanical goal is force distribution.
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Oral and Maxillofacial Surgery
Mesioangular impactions are the most common and typically involve
the tooth being angulated towards the mesial surface of the adjacent second
molar. This orientation allows for a more straightforward surgical approach
compared to other impaction types.
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Dental Materials
The compressive strength of hardened zinc oxide eugenol (ZnOE) impression paste is generally about 7 MPa, indicating its ability to withstand compressive forces without deformation or failure.
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Physiology
Answer: 4) Increase in heart rate and increase in stroke volume
Explanation: Thyroid hormones, such as thyroxine (T4) and triiodothyronine (T3), enhance the effects of catecholamines on the cardiovascular system, leading to increased heart rate and stroke volume. This results in a higher cardiac output, which is essential for meeting the increased metabolic demands during stress or exercise.