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NEET MDS Shorts

11366
Endodontics

In a young patient with immature root development and vital pulp exposure, pulpotomy preserves radicular pulp vitality allowing continued root development (apexogenesis). Pulpectomy would halt root formation.

17333
Endodontics

Irreversible pulpitis is characterized by sharp, severe pain that continues even after the stimulus (such as cold) has been removed. 

The pain is typically spontaneous or continuous and can be intense. 

In contrast, reversible pulpitis causes pain only when the stimulus is applied, which disappears shortly after removal.

The persistent pain is a key diagnostic sign indicating that the pulp is inflamed beyond recovery and requires endodontic treatment or extraction.

92572
General Medicine

Megaloblastic anemia can be caused by either folate or vitamin B12 deficiency. Both of these nutrients are essential for DNA synthesis and cell division in the bone marrow.

30560
NEETMDS

For a non-vital tooth with an open apex (apexification), the treatment of choice is the use of a material like Mineral Trioxide Aggregate (MTA) to create an apical barrier, which can often be completed in a single sitting. Conventional obturation with gutta-percha requires a fully formed apex. 

20472
Oral Surgery

Maximum recommended dosage of lignocaine with 1:1,00,000 adrenaline subcutaneously is 100 mg.

10141
General Medicine

ETEC are the principal cause of traveler’s diarrhe1) They produce both a heat-labile toxin (LT) and a heat-stable toxin (ST) that act on the intestinal mucos1) The LT is similar to cholera toxin and increases intracellular cGMP levels, leading to enhanced fluid and electrolyte secretion into the lumen and thus diarrhe1) The ST acts by a different mechanism but also enhances fluid and electrolyte secretion.

66150
NEETMDS

The maximum recommended dose of lidocaine (lignocaine) without a vasoconstrictor like adrenaline is generally considered to be 4.4 mg/kg of body weight. This dosage helps reduce the risk of local anesthetic systemic toxicity. 

36635
Dental Materials

The bond strength is influenced by the acidity; a lower pH can enhance the bond strength.

83028
Medicine

Ochronosis, the deposition of homogentisic acid (HGA) in connective tissues, is a characteristic feature of alkaptonuria.


This deposition commonly affects various cartilaginous structures, including the pinna (outer ear), the nasal cartilage, and other cartilaginous sites throughout the body, leading to joint pain and arthritis. 

Deposition is also seen in the eye, specifically in the sclera and cornea.

13957
Prosthodontics

Centric Relation (CR): A maxillomandibular relationship where the condyles are in their most superior, anterior position against the articular eminences, independent of tooth contact.

Key Muscles: The temporalis, masseter, and medial pterygoid form a "sling" that closes the jaw and seats the condyles.

Temporalis Role: The temporalis muscle is especially important for pulling the mandible up and back, helping to achieve that ideal condylar seating for CR.

Pterygoids: The medial pterygoid also elevates the mandible, while the lateral pterygoid helps with opening and protrusion, but it's the coordinated action of the three main elevators that defines CR. 

Centric relation is a ligament-guided position of the mandible, not a muscle-guided one. It refers to the relationship when the condyles are in their most anterior-superior position against the posterior slopes of the articular eminences, with the discs properly interposed.

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