NEET MDS Shorts
45650
Conservative Dentistryovertrituration (i.e., triturating for longer than the recommended time) results in a mix that is warm and has a dull surface; often the mix sticks to the capsule; it shortens setting time (because the amalgam mass becomes heated), increases contraction, and increases creep; also increases tensile and compressive strength values (for lathe-cut alloys), decreases tensile and compressive strengths (for spherical alloys); overtrituration by 10% is acceptable
38566
ProsthodonticsA maxillary alginate impression is removed with a quick jerk to prevent permanent deformation.
16506
General MicrobiologyEndotoxins are components of the outer membrane of Gram-negative bacteria and are released when the bacteria die or divide. This structural characteristic differentiates them from exotoxins, which are secreted by living bacteria.
41830
INI CET
Killian's dehiscence is a weak area in the laryngopharynx. Outpouching here leads to Zenker's diverticulum.
70083
INI CET
Gingival retraction is a technique used in dentistry to temporarily move the gum tissue away from the tooth to create a clear impression of the tooth and the surrounding area. Retraction cord, also known as gingival retraction cord, is a common and widely used mechanical method for gingival retraction during final impression procedures. The cord is typically soaked in a chemical agent to control bleeding and tissue fluid, then gently placed into the sulcus (the space between the tooth and the gum).
15544
PharmacologyPenicillinase may inactivate penicillin by splitting the beta-lactum ring
37532
MedicineAntiphospholipid antibody syndrome (APS) is characterized by recurrent thrombosis (such as deep vein thrombosis), pregnancy complications (including spontaneous abortions), and can be associated with autoimmune symptoms like joint pain and fever. The prolonged activated partial thromboplastin time (APTT) can also be seen in APS due to the presence of antiphospholipid antibodies.
36631
Dental Materials
While it has good mechanical properties, poorly placed zinc phosphate cement can cause pulpal irritation.
82483
RadiologyExplanation: Among the imaging techniques listed, a CT (computed tomography) scan typically involves the highest radiation exposure to the patient. This is due to the multiple X-ray images taken from different angles to create cross-sectional images of the body.
56408
NEETMDS
The significant differences between self-etch
primers and total-etch primers are: Wetness of dentine: In total-etch, dentine must be kept moist
after etching to prevent collagen collapse. In self-etch, no rinsing step is required, so
dentine wetness is not critical. Time of application: Total-etch involves separate etching, rinsing,
and priming steps → longer procedure. Self-etch combines etching and priming in one
step → faster. Removal of smear layer: Total-etch completely removes the smear layer
with phosphoric acid. Self-etch modifies and incorporates the smear
layer into the hybrid layer. Bond strength: Both systems can achieve comparable bond strength
to enamel and dentine when properly applied. Hence, bond strength is NOT a significant difference
between the two systems.Explanation