NEET MDS Shorts
11917
Dental Materials
The primary concern is the potential for pulpal toxicity due to the diffusion of eugenol.
23255
Physiology
Gastrin is the major hormone that stimulates the gastric phase of gastric secretion. It is released from G cells in the antral mucosa in response to food in the stomach, particularly proteins and amino acids, and to a lesser extent, to the presence of acid. Gastrin stimulates the parietal cells to secrete hydrochloric acid and intrinsic factor.
87574
NEETMDSLoss of taste sensation on the affected side is not a feature of unilateral hypoglossal nerve damage because the hypoglossal nerve (cranial nerve XII) is a motor nerve that controls the muscles of the tongue and does not carry taste fibers.
0
Anatomy
The sphenomandibular ligament extends from the spine of the sphenoid to the lingula of the mandible and is an important landmark during an inferior alveolar nerve block.
80406
EndodonticsA horizontal root fracture creates a pathway that allows the filling material to escape the confines of the canal space and appear as a distinct line on a radiograph.
32135
ProsthodonticsThe modiolus exerts its influence at the canine and premolar region of complete dentures. Modiolus is formed by all of the following muscles except masseter.
86355
PathologyHyperpigmentation is a classic physical finding in Addison's disease, which is caused by adrenal insufficiency.
76595
Radiology
Tomography is a diagnostic imaging method that is often referred to as basic
"sectional" or "slice" radiography. It involves taking a series of
two-dimensional images of a specific area or "slice" of the body, using a narrow
beam of radiation that passes through the body from multiple angles. These
images are then combined to create a detailed, cross-sectional view of the
internal structures, allowing for the visualization of the body without the
superimposition of structures outside the area of interest. This technique is
particularly useful for diagnosing conditions that may not be apparent on
standard X-rays.
Explanation of the other options:
1) Othopantomography: This is a type of panoramic radiography used to capture a
wide-angle view of the teeth, jaw, and other oral structures. While it does
produce an image of a "section" of the body, it is not typically referred to as
"sectional" or "slice" radiography in the same sense as tomography, as it does
not involve the same layering or cross-sectional approach.
2) Cephalogram: A cephalogram is a specific type of X-ray used in dentistry and
orthodontics to examine the soft tissues and bones of the face and head,
particularly the skull and jaw. It provides a two-dimensional, flat
representation of the head from the side view, and while it is a form of
radiography, it does not produce the layered or cross-sectional images that are
characteristic of tomography.
59652
PathologyZenkers degeneration is characterized by coagulative necrosis, typically seen in cases of ischemia or infarction.
62641
PedodonticsA window-shaped alveolar defect on labial alveolar bone is called fenestration.