NEET MDS Shorts
36880
Oral SurgeryThe elevator which fits well in the operator's hand and can be rotated between the thumb and the finger is Warwick-James elevator.
26897
Conservative DentistryThe discoloration of amalgam restorations is often due to the formation of silver sulfide on the surface, which can occur due to the reaction of silver with sulfur compounds in the oral environment. The gamma I phase is a strong component of amalgam, while the gamma II phase is weaker and less stable. Oxides can form as well, but sulfides are more directly associated with the discoloration observed in clinical settings.
65066
MedicineNRTIs (e.g., Tenofovir, Emtricitabine) work by mimicking natural nucleosides and terminating the growing DNA chain during the reverse transcription process, which is the mechanism by which HIV converts its RNA genome into DNA. Other classes like PIs inhibit viral protein maturation, INSTIs block viral DNA integration into the host genome, and NNRTIs also block reverse transcriptase but via a different mechanism.
35410
NEETMDS
When mercury comes in contact with the
alloy powder (mainly silver, tin, copper):
Mercury first dissolves the outer surface of the alloy particles.
After dissolution, new reaction products begin to form:
Ag–Hg (gamma-1 phase) from reaction with silver
Sn–Hg (gamma-2 phase) from reaction with tin (in low-copper amalgam)
Cu–Sn (eta phase) replaces gamma-2 in high-copper amalgam
29199
NEETMDSThe pediatric treatment triangle originally described the relationship between the child, parents, and dentist. The success of pediatric dental treatment relies on effective communication and cooperation among all parties within this expanded triangle relationship.
63063
Oral PathologyMyositis ossificans generalisata (fibrodysplasia ossificans progressiva) causes progressive ossification of muscles, tendons, and ligaments, leading to a "petrified" or stone-like condition where the patient becomes immobilized. This rare genetic disorder progressively restricts movement as soft tissues calcify. Dystrophic myotonia, dermatomyositis, and proliferative myositis do not cause this petrification process.
58165
Oral PathologyHyperplasia or hypertrophy of minor salivary glands in the palate is not typically associated with pernicious anemia.
60040
Public Health Dentistry
Daily fluoride mouth rinse containing 0.05% sodium fluoride has a
concentration of about 225 ppm fluoride ions
0.05% sodium fluoride solution = 225 ppm fluoride
0.2% sodium fluoride solution = 900 ppm fluoride
The daily rinse (0.05%) is recommended for children aged 6–12 years.
The weekly rinse (0.2%) is recommended for older children and adults at higher
risk of caries.
93980
INI CET
Gingivectomy is indicated for crown lengthening when there is sufficient width of keratinized gingiva and no need for osseous recontouring.
11818
Dental MaterialsTypes of expansion that are possible in an investment are thermal expansion, hygroscopic expansion, and setting expansion