NEET MDS Shorts
37925
Conservative DentistryFailure of a cast to seat properly on the cast during the restoration process can be due to various factors such as distortion during fabrication or changes in the cast material. To overcome this, the cast can be scraped with a sharp instrument to remove any excess material that may be preventing proper seating. Washing the casting with HCI (hydrochloric acid) may help to clean and smooth the surface, but it is not a common practice for this specific purpose. Forcefully positioning the casting can cause damage to the cast and is not recommended. If the discrepancy is more than 0.3 mm, it is generally advised to discard the cast and make a new one to ensure a precise and accurate fit.
51862
OrthodonticsPassive tooth-borne functional appliances are removable and do not require active muscle participation, such as Andersen activator, Woodside and Hawley activator, and expansion activator. The Herbst appliance is a fixed functional appliance.
97880
PeriodonticsMaintenance therapy is designed to support the long-term health of periodontal tissues after initial treatment. By regularly monitoring and managing periodontal disease, practitioners can help prevent disease recurrence and maintain periodontal health.
80531
PedodonticsThe major disadvantage of temporary intracoronal splinting is the commitment to a permanent splinting.
68629
Oral SurgeryFor a patient on dicoumarol therapy with a prothrombin time of 18 seconds, surgery can be performed as this PT is only mildly elevated and within acceptable limits for minor oral surgery. Normal PT is 11-15 seconds, and a PT of 18 seconds represents manageable anticoagulation levels that don't significantly increase bleeding risk for tooth extraction.
49012
Physiology
Answer: 2) The primary neurotransmitter involved in the sympathetic nervous system's response at the neuromuscular junction is norepinephrine, which acts on alpha and beta-adrenergic receptors.
53842
General Medicine
In minimal-change disease, the primary mechanism of proteinuria is thought to be increased permeability of the glomerular capillary wall to proteins due to changes in the glomerular basement membrane, rather than structural damage to the membrane itself.
88747
Oral SurgeryThe direction of the bevel of the chisel during bone cutting is towards the bone to be sacrificed.
12250
General Medicine
The primary target of autoantibodies in SLE is nuclear components. These antibodies can lead to the formation of immune complexes and complement activation, resulting in widespread tissue damage and inflammation.
26028
Oral PathologyCleidocranial dysostosis exhibits all the mentioned dental findings: increased caries susceptibility due to enamel defects and crowding, enamel hypoplasia and defective enamel formation due to developmental anomalies, and juvenile periodontitis with premature tooth loss due to abnormal periodontal development. The syndrome affects both hard and soft tissue development of the oral cavity.