NEET MDS Shorts
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NEETMDSFor 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.
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General PathologyHbA prevents sickling in sickle cell trait patients because the presence of normal hemoglobin (HbA) reduces the proportion of HbS, preventing polymerization.
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OrthodonticsExpansion and distalization are considered noninvasive methods for gaining space in orthodontic treatment.
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INI CET
Garre's osteomyelitis, also known as proliferative periostitis, is a rare type of chronic osteomyelitis. It is typically seen in children and young adults and is characterized by periosteal bone formation (onion-skin appearance) rather than the "moth-eaten" appearance seen in more aggressive or malignant conditions. The most common cause is dental infection.
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INI CET
Zinc Oxide Eugenol (ZOE) is the most soluble, making it less suitable for permanent luting compared to Zinc Phosphate or Glass Ionomer.
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Dental Materials
Ormocers offer several advantages over conventional composites. They have excellent biocompatibility, minimal shrinkage, and their chemical structure allows for high resistance to masticatory forces. Additionally, they are aesthetically pleasing and can be polished to resemble natural teeth.
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Physiology
Answer: 2) Epinephrine
Explanation: During the fight-or-flight response, epinephrine is released from the adrenal medulla and acts on the pupillary dilator muscles to cause mydriasis (dilatation of pupils). This effect is mediated by beta-adrenergic receptors on the smooth muscle of the iris, leading to increased pupil size to allow more light in for better vision.
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Oral PathologyDarier’s disease is associated with a deficiency of Vitamin A involving mucosa and epithelium.
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NEETMDSMid-treatment flare-ups during root canal treatment (RCT) are more commonly associated with non-vital teeth (those with necrotic pulp) than vital teeth. This is often due to the presence of bacteria and their byproducts within the root canal system.
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General PathologyReticulocytosis is commonly seen in hemolytic anemia, where there is increased production of red blood cells in response to anemia.