NEET MDS Shorts
68852
Conservative DentistryAcid etching is a dental procedure that creates a micromechanical bond between the tooth surface and a restorative material. This bonding process significantly reduces microleakage, which is the microscopic space between the tooth and the restoration where bacteria and fluids can penetrate.
49807
RadiologyQuality of the x-ray beam is dependent on the temperature of the cathode filament.
37480
Dental AnatomyThe canine eminence is an osseous structure surrounding the root of a canine on the facial aspect
92339
General Medicine
Parahemophilia is a congenital deficiency of factor V, which is less severe than Hemophilia A or B. It leads to a mild bleeding diathesis. Factor XII deficiency is associated with Hageman trait, which typically does not cause a significant bleeding tendency.
74389
NEETMDS
Silorane-based composites polymerize via a ring-opening reaction, which results in lower polymerization shrinkage compared to traditional methacrylate-based composites.
91142
Dental Materials
The setting mechanism of light-cured resins involves free radical polymerization initiated by light, which causes the material to contract away from the light source (typically the external surface).
76408
RadiologyIf shorter exposure time is needed for exposing dental film, kVp can be increased.
44846
NEETMDS
A vasoselective drug is one that primarily affects blood vessels.
The options provided are mostly anticholinergic drugs:Ipratropium bromide is an
anticholinergic bronchodilator used for respiratory conditions.
Cyclopentolate is an anticholinergic used in ophthalmology to dilate pupils.
Tolterodine is an anticholinergic used for overactive bladder, working on
muscarinic receptors in the bladder muscle.
Adrenaline (epinephrine) is a non-selective adrenoceptor agonist with broad
effects on the heart, lungs, and blood vessels.
30909
PeriodonticsSubgingival calculus is often found in the lower anterior region due to the anatomy and position of the teeth.
32824
NEETMDS
The combination of
sulfamethoxazole and trimethoprim (known as cotrimoxazole) is synergistic
because the two drugs sequentially block the bacterial folate metabolism
pathway. Sulfamethoxazole
inhibits the incorporation of PABA into dihydrofolic acid, while trimethoprim
inhibits the reduction of dihydrofolic acid to tetrahydrofolic acid.
Cotrimoxazole
It is a combination of sulfamethoxazole and trimethoprim. This has
synergistis bactericidal action.
It is used for treating
Uncomplicated UTI
-Respiratory infections
-Gonorrhea
-Otitis media
Dose Trimethoprim 80mg+ Sulfamethanazole 400mg
Cotrimoxazole causes sequential block of the folate metabolam