NEET MDS Shorts
82652
PedodonticsThe Russell periodontal index does not indicate masticatory efficiency.
76422
Dental MaterialsUse zinc free alloy in children with more salivation
24220
General MedicineCrackling crepitations unaltered by coughing is characteristic of interstitial lung disease
26947
Pharmacology
Ipratropium (as ipratropium bromide, trade name Atrovent) is an anticholinergic drug administered by inhalation for the treatment of obstructive lung diseases. It acts by blocking muscarinic receptors in the lung, inhibiting bronchoconstriction and mucus secretion. It is a non-selective muscarinic antagonist, and does not diffuse into the blood, which prevents systemic side effects.
Ipratropium is a derivative of atropine[1] but is a quaternary amine and therefore does not cross the blood-brain barrier
88701
ProsthodonticsIdentify the wrong statement regarding salivary scan: When both are indicated, sialogram is done first.
63374
Conservative DentistryExplanation: When dealing with adjacent Class III cavities, it is generally recommended to prepare the larger cavity first and fill it last. This approach allows the dentist to have better access and visibility when preparing the larger cavity, which can be more complex. Filling the larger cavity last helps to avoid contamination and ensures that the smaller cavity can be filled with precision without compromising the integrity of the larger restoration.
28324
Radiology
Talon cusp (TC) and dens in dente (DiD) are both developmental anomalies of
the teeth, but they differ in their formation and appearance. A talon cusp
arises from the palatal or lingual aspect of an incisor tooth, typically in the
maxillary central or lateral incisors. It is composed of enamel and dentin, and
its shape can vary from a mild bulge to a fully formed cusp that extends to the
incisal edge of the tooth. It can be mistaken for a supernumerary tooth on
radiographs due to its pointed projection and density.
In contrast, dens in dente is a condition where a tooth has an invagination in
its crown that contains a smaller tooth-like structure, known as the "dental
lamina," which is enclosed within it. This invagination is usually filled with
pulp tissue and dentin, and the internal structure resembles a tooth within a
tooth. The smaller structure within the affected tooth can mimic a supernumerary
tooth on radiographs, but it is not a separate tooth.
38805
PedodonticsIn a deep pocket of 6 mm, calculus found only as a thin ring at the apical third may be due to fracture and dislodgement of the enamel part of calculus.
84282
PhysiologyThe cephalic phase of gastric acid secretion is initiated by the parasympathetic system and is triggered by the sight, smell, or thought of food. It accounts for approximately 20% of total acid secretion and prepares the stomach for digestion even before food arrives.
42463
RadiologyThe cathode in a Coolidge tube is made of molybdenum, whereas the anode is made of copper.