NEET MDS Shorts
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General PathologyThe primary defect in sickle cell anemia is the replacement of glutamic acid by valine in the ?-chain of hemoglobin, leading to the sickling of red blood cells.
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Physiology
Answer: 1) Depolarization
Explanation: EPSPs occur when the neurotransmitter binds to postsynaptic receptors that open sodium channels, allowing sodium ions to flow into the neuron and causing the membrane to depolarize. This increases the excitability of the neuron, bringing the membrane potential closer to the threshold for action potential firing.
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ProsthodonticsThe patient’s manipulative skills in handling complete dentures are best with overdentures.
38738
BiochemistryGlutamate-pyruvate trans-aminase is predominantly present In Liver
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Orthodontics
SOLUTION Stress is the force applied per unit area while strain can be defined as the internal distortion per unit area.
Stress and strain are inter-related terms as stress is an external force acting upon a body while strain is the resultant of stress on that body.
Strain can be expressed in the form of a change in either the external dimension or internal energy of the body.
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Dental AnatomyThe most constant and valuable trait to differentiate among maxillary first second and third molars is the depth of central fossae
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General PathologyHashimoto's thyroiditis is the most common cause of hypothyroidism in adults leading to myxedema.
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State PSC PYQSubchondral cysts are a common finding in osteoarthritis of various joints, including the temporomandibular joint (TMJ).They form due to the degeneration of articular cartilage and the subsequent changes in the underlying bone..
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Dental Materials
Light-curing units emit light at specific wavelengths that are absorbed by the photosensitizer in the resin, triggering the free radical polymerization process and setting the material.
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Oral Pathology
1. Anodontia: This is the complete absence of teeth. It is a rare condition
where an individual fails to develop any teeth.
2. Oligodontia: This term is used when an individual has fewer teeth than the
typical dental formula, which is six incisors, two canines, two premolars, and
six molars in the permanent dentition (excluding the third molars or wisdom
teeth). The term "hypodontia" is often used synonymously with oligodontia, but
hypodontia can also refer to a broader range of conditions characterized by the
congenital absence of one or more teeth, whereas oligodontia is more
specifically the absence of six or more teeth.
3. Microdontia: This condition involves teeth that are smaller than normal. It
can affect either the primary or permanent dentition and may involve one tooth
or multiple teeth.
4. Dens in dente: This is a rare developmental anomaly where a tooth forms
within the dental crown of another tooth, typically in the form of a small
tooth-like structure. It is not a condition of tooth number but rather an
abnormality of tooth structure.