NEET MDS Shorts
21154
Oral PathologyThe most probable diagnosis for irregular bone loss and eosinophils is Hand-Schuller-Christian disease.
52961
INI CET
PTH primarily acts to increase blood calcium levels by stimulating bone resorption via osteoclast activation (indirectly through osteoblasts), enhancing calcium release from bones into the bloodstream.
91253
Physiology
The cholinergic system, which is part of the parasympathetic nervous system, stimulates the parietal cells in the stomach to release hydrochloric acid (HCL) through the activation of muscarinic M1 receptors. This is crucial for the digestion of food and the maintenance of gastric pH.
25099
PhysiologyGlucose is reabsorbed via active transport mechanisms that involve sodium-glucose co-transporters (SGLTs) and glucose transporters (GLUTs).
69566
Periodontics
The apically displaced flap procedure is a common surgical technique in periodontology that achieves two goals: the elimination of periodontal pockets and an increase in the width of the attached gingiva.
39629
Prosthodontics
The most reproducible relation of the jaws that is used in fixed denture
construction is Centric Relation (CR). Here's a detailed explanation of the
options provided and why Centric Relation is the correct answer:
1) Centric Occlusion (CO): This is the position of the mandible where the
incisor and posterior teeth of the maxilla and mandible are in maximum
intercuspation, meaning the teeth are in their most closed and stable contact.
It is the position that occurs when the condyles are in the most superior and
anterior position in the glenoid fossae of the temporal bones. While important
for the function of the teeth, centric occlusion is not always a reliable
reference for the construction of a fixed denture, as it can be influenced by
various factors such as tooth wear, pathology, or parafunctional habits.
Moreover, it is a dynamic relationship that can change over time.
2) Centric Relation (CR): Centric relation is the most retruded, unstrained
position of the mandible on the maxilla from which the mandible can move to the
lateral and protrusive positions. It is the basis for the articulators in
dentistry and is considered the most reproducible jaw relationship for the
fabrication of fixed dentures. CR is determined by the temporomandibular joint
(TMJ) and does not involve tooth contact. This is crucial because it provides a
consistent and predictable starting point for constructing a denture that will
function harmoniously with the TMJ and the surrounding soft tissues. It is the
position where the condyles are in a centric relation with the fossa and the
disk is properly situated, which minimizes strain and maximizes stability during
function.
3) Protrusive Contact Position: This is the position of the mandible where the
incisor or canine teeth make contact with the maxilla in a forward and downward
movement. While it is a functional movement of the jaw, it is not a stable or
reproducible position for the construction of fixed dentures because it is
highly dependent on the muscles and may not be consistent across different
individuals or even during different occasions for the same individual.
4) Lateral Contact Position: This refers to the position of the mandible during
lateral movements, where the teeth contact the maxilla on the side of the arch.
Similar to protrusive contact, it is a functional position that is influenced by
muscle activity and not a stable reference for denture construction. Lateral
movements are also not the primary focus in fixed denture construction, which is
mainly concerned with the vertical and anteroposterior relationships of the
jaws.
87041
MedicineThe clinical presentation of ascending paralysis, respiratory muscle involvement, and albuminocytological dissociation in CSF is characteristic of Guillain-Barré syndrome (GBS). The two primary treatments for GBS are intravenous immunoglobulin (IVIG) and plasma exchange.
92727
Oral PathologyHairy tongue is characterized by the hypertrophy of filiform papillae on the tongue, leading to a dark, hairy appearance.
73212
Dental Materials
High expansion dental stones are designed to expand more than typical dental stones to compensate for the contraction of other materials and ensure a precise fit for restorations.
61343
EndodonticsAfter thorough curettage of periapical pathology, the bone cavity should be left empty to allow natural bone regeneration. Placing foreign materials can impede healing and cause complications.