NEET MDS Shorts
82811
NEETMDSThe function of a fixer solution in radiographic film processing is to dissolve and remove the unexposed silver halide crystals from the film emulsion. This process "fixes" the image, making it permanent and preventing the remaining silver from darkening when exposed to light.
90616
General PathologyTesticular torsion is the most likely diagnosis for sudden onset of severe pain and swelling in the testicle.
83142
Oral Surgery
A tracheostomy is a surgical procedure that involves creating an opening in
the trachea (windpipe) to facilitate breathing. The preferred site for making
the incision during a tracheostomy is the cricothyroid ligament,
which is located between the cricoid and thyroid cartilages. Cricothyroid ligament: This ligament is relatively
superficial and provides a safe access point to the airway, especially in
emergency situations. It is often chosen for emergency tracheostomy because
it is easier to locate and access quickly.
32126
Oral Pathology
Periapical granulomas were diagnosed as well-circumscribed periapical
radiolucency measuring less than 1.5 cm in diameter, periapical cysts were
characterized by well-defined periapical radiolucency with sclerotic borders
measuring greater than 1.5 cm, and periapical abscesses were characterized by
ill-defined periapical radiolucency with diffuse margins. While bone resorption can occur in the presence of a periapical granuloma, it
is not a prerequisite for its formation. A periapical granuloma can develop in
response to pulp necrosis or infection without necessarily requiring bone
resorption to occur first. The granuloma can form as a reaction to the
inflammatory process, regardless of the state of the surrounding bone.
85370
ProsthodonticsCustom tray is better than stock tray for impression (of crown) due to the reason that stock tray may not record full flange.
98948
General Medicine
Factor II (prothrombin) deficiency leads to a prolonged PT (Prothrombin Time) because it is involved in the extrinsic pathway of the coagulation cascade, which is assessed by the PT test. The aPTT (activated Partial Thromboplastin Time) is normal because the intrinsic pathway is not affected.
97010
ProsthodonticsThe impression material which would record the tissues with minimum pressure (mucostatic in nature) is plaster of Paris.
88098
OrthodonticsVestibular appliances are designed to influence the vestibular musculature and include oral screen, lip bumper, and Frankel appliance. The activator is an intraoral functional appliance, not vestibular.
66268
General PathologyThe primary defect in sickle cell anemia is the replacement of glutamic acid by valine in the ?-chain of hemoglobin, leading to the sickling of red blood cells.
69142
NEETMDS
For an 8-year-old child with TMJ ankylosis, surgical intervention is required to restore joint function. Due to ongoing growth, it is crucial to use an autogenous graft (costochondral graft) that has growth potential to prevent re-ankylosis and facial asymmetry.