NEET MDS Shorts
93939
Dental Materials
A base material in dental restoration is primarily used to provide a seal against microleakage.
24273
Microbiology
92642
Oral and Maxillofacial Surgery
Class B impaction in Pell and Gregory's classification means that
the cusp tip of the impacted tooth is located between the occlusal plane of the
second molar and the cervical line of the second molar. This is a common
position for mandibular third molars.
87753
NEETMDS
According to the NORMS of orthodontic records, the vertical height of study models should be 70 mm.
82583
Oral PathologyPenetration power of X-ray is primarily measured by kilovoltage.
12973
EndodonticsThe designation "D2" on an endodontic file indicates the diameter of the file at the tip, measured in hundredths of a millimeter. This helps clinicians select the appropriate file size for root canal treatment.
43928
NEETMDSThe patient's presentation with a painless swelling causing fullness of the upper lip and elevation of the nostril on one side, combined with the specific radiographic finding of unilateral elevation of the floor of the nasal cavity, is the classic presentation of a nasolabial cyst.
87143
AnatomyThe muscle assisting in mastication but not supplied by mandibular nerve is tensor veli palatine
96708
Biochemistry
Vitamin B12 participates in two reactions in the body-conversion of homocysteine to methionine and conversion ofmethylmalonyl-CoA to succinyl-CoA. Methylmalonyl-CoA is produced via various amino acid degradation pathways, and from oddcarbon chain fatty acid oxidation. In the absence of B12, succinyl-CoA would only be produced as an intermediate of the TCA cycle, and if it were removed from the cycle for heme synthesis, energy production may suffer. Glycine is usually obtained from the diet, although in a B12 deficiency a functional folate deficiency may also develop, leading to an inhibition of serine hydroxymethyltransferase, the enzyme that converts serine to glycine, and requires free tetrahydrofolate. Succinyl-CoA and glycine are the precursors for heme synthesis. A B12 deficiency would not inhibit the production of acetyl-CoA, succinate, or alanine.
87437
Oral Surgery