NEET MDS Shorts
80531
PedodonticsThe major disadvantage of temporary intracoronal splinting is the commitment to a permanent splinting.
86863
MicrobiologySoaps typically have the narrowest effective antimicrobial range among the listed compounds. They are primarily effective against certain bacteria and viruses but may not be as potent against a broader spectrum of pathogens compared to glutaraldehyde or alcohols like 70% isopropanol.
26551
RadiologyHisatugu Numata (H. Numata) of Japan was the first to propose and experiment with the concept of rotational panoramic radiography in 1933, using a curved film placed lingual to the teeth. However, it was Paatero who, in the late 1940s and 1950s, developed the method of pantomography and then orthopantomography into a practical and commercially viable machine
62613
EndodonticsHydroxylation of protocollagen to true collagen in wound healing requires all three factors: 1) Oxygen - provides the oxidizing environment necessary for the hydroxylation reaction, 2) Ferric ion (Fe3+) - acts as a cofactor for the enzyme prolyl hydroxylase, 3) Ascorbic acid (Vitamin C) - essential cofactor that maintains iron in the ferrous state and is required for prolyl and lysyl hydroxylase activity. Deficiency of any of these factors leads to defective collagen synthesis, resulting in poor wound healing and scurvy-like symptoms.
12475
General PathologyThe primary mechanism of tissue damage in a tuberculin reaction is the activation of macrophages by CD4+ memory T cells.
83330
EndodonticsHydrogen peroxide is the solution used to bleach non-vital endodontically treated teeth. Typically used as: 1) 30% hydrogen peroxide (Superoxol) for in-office bleaching, 2) Can be activated with heat for enhanced effectiveness, 3) May be mixed with sodium perborate for walking bleach technique, 4) Penetrates dentin tubules to break down chromophores causing discoloration. Chloroform and ether are solvents used for gutta-percha removal, while sodium hypochlorite is an irrigant for canal disinfection, not bleaching.
94457
Public Health Dentistry
The Snyder test is a microbiological test used to detect the presence of
specific bacteria associated with dental caries, primarily Streptococcus mutans.
It involves taking a sample of plaque, adding a sugar solution, and observing
for the formation of acid that indicates bacterial activity and the potential
for tooth decay. It is not used to detect fungal growth on skin or determine the
pH of crevicular fluid.
12955
INI CET
Garre's osteomyelitis (proliferative periostitis) is a chronic inflammatory response predominantly seen in children and young adults with a mean age of 13, often associated with a periapical infection of a mandibular molar.
39129
NEETMDSPressure on a tooth root, such as during orthodontic treatment, stimulates osteoclast activity on the compression side of the tooth. This process is a basic principle of root resorption, where bone is removed to allow for tooth movement.
71848
RadiologyThe vertical angle for making bitewing radiographs is approximately five degrees downward.