NEET MDS Shorts
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.
65236
Orthodontics
SOLUTION Intermaxillary anchorage or Baker's Anchorage. This type of anchorage involves using elastics from one jaw to the other, in the form of either Class 2 elastics (moving upper teeth back) where lower molar teeth serve as anchors, or Class 3 elastics (moving lower teeth back) where upper molars serve as anchors. Intramaxillary anchorage is also used in the form of E-chain, when elastics are used from the back molar teeth to the front teeth in the same jaw to move teeth back of the mouth.
98634
Oral Surgery
Le Fort I Fracture
69269
Oral SurgeryThe first sensation to be lost following administration of local anaesthetic is pain.
91253
Physiology
The cholinergic system, which is part of the parasympathetic nervous system, stimulates the parietal cells in the stomach to release hydrochloric acid (HCL) through the activation of muscarinic M1 receptors. This is crucial for the digestion of food and the maintenance of gastric pH.
14332
ProsthodonticsWhen making peripheral seal for mandibular denture, if the impression is rising when the patient opens his mouth, it indicates overextension of the labial and buccal surfaces.
98329
Oral and Maxillofacial Surgery
Although overcrowding can contribute to impaction, it is not a
direct cause. The most common causes of impaction are insufficient space in the
dental arch and abnormal angulation of the tooth due to the presence of other
teeth or abnormal growth patterns. Genetic factors also play a significant role
as the size and shape of the jaw are inherited traits.
55237
OrthodonticsIn a homogeneous population, the genetic variation is less compared to a heterogeneous population. Malocclusion is influenced by both genetic and environmental factors. A homogenous population, which is more genetically similar, would be expected to have a more uniform expression of dental traits, including a lower incidence of malocclusion, assuming that the specific genetic factors for malocclusion are not prevalent in that particular population. In a heterogeneous population, the greater genetic diversity can lead to a higher incidence of malocclusion due to a wider range of genetic combinations contributing to dental misalignments.
69797
NEETMDS
Alginate setting is an ion-exchange reaction where sodium alginate reacts with calcium sulfate (calcium ions). Tap water with high concentrations of calcium sulfate and magnesium (hard water) provides additional calcium ions, which accelerates the setting time of the alginate material.
73414
Dental Materials
RMGI contains glass ionomer along with 2-hydroxyethylmethacrylate (HEMA) and tartaric acid to improve its properties.