NEET MDS Shorts
31713
Community DentistryCalculus formation is primarily retarded by daily plaque removal through proper oral hygiene practices, as calculus forms from mineralized plaque.
30157
EndodonticsFor a child with mid-crown fracture in permanent maxillary central incisor with necrotic pulp and incompletely formed root with open apex, the treatment of choice is apexification. This procedure is indicated because: 1) Open apex prevents conventional root canal obturation, 2) Necrotic pulp requires complete debridement, 3) Apexification induces calcified barrier formation at root apex, 4) Allows subsequent root canal obturation, 5) Preserves the tooth for normal function. Calcium hydroxide or MTA are commonly used materials for apexification. Pulpotomies are not indicated for necrotic pulps.
99161
NEETMDS
Alkaline phosphatase is an enzyme associated with calcification and is present in the stratum intermedium layer of the enamel organ during tooth development.
38531
PhysiologyTransport maximum indicates the maximum rate at which an active transport system can reabsorb a substance from the glomerular filtrate.
16601
Physiology
Answer: 1) Dilatation (mydriasis)
Explanation: Norepinephrine acts on alpha-adrenergic receptors in the pupillary dilator muscles, leading to pupil dilation. This is a component of the sympathetic nervous system's response to stress, which also includes pupil dilatation mediated by epinephrine.
28254
Dental Materials
The average particle size of powered gold used in dental restorations is 15 ?ms. This size allows for the gold to be manipulated and condensed properly within the cavity preparation to achieve the desired restorative outcome.
48177
Oral PathologyThe findings of emotional problems, increased salivation, pallor, and grayish-blue discoloration of the gingiva are consistent with lead poisoning.
42987
General Medicine
Hyperparathyroidism typically leads to increased bone resorption due to the actions of PTH, which can result in osteoporosis characterized by decreased bone density and increased risk of fractures despite increased bone turnover.
48806
INI CET
The "dog bell and food story" refers to Pavlovian Classical Conditioning. It describes how a neutral stimulus (bell) becomes associated with a biological stimulus (food) to elicit a conditioned response.
13282
Dental AnatomyA tooth makes its appearance in the oral cavity usually when one half of the root is completed