NEET MDS Shorts
46750
INI CET
The I-bar of the RPI system is an infrabulge clasp that provides push-type retention.
81932
EndodonticsRegarding tetanus protocol for infected wounds, none of the given statements are universally correct. The actual protocol depends on: 1) Patient vaccination history - if fully immunized and up-to-date, only tetanus toxoid booster may be needed, 2) Wound characteristics - clean vs contaminated wounds have different requirements, 3) Time since last vaccination - influences need for active vs passive immunization, 4) Immunocompromised status. The protocol may require tetanus toxoid alone, tetanus immunoglobulin alone, or both depending on individual circumstances. A standardized approach does not apply to all cases.
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Biochemistry
Thiamine deficiency impairs pyruvate dehydrogenase leading to pyruvate accumulation.
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Biochemistry
Pulmonary surfactant is a surface-active lipoprotein complex secreted by type II alveolar cells. It lowers surface tension at the air-liquid interface within the alveoli, preventing alveolar collapse during expiration and reducing the work required for breathing.
33182
ProsthodonticsFor a tooth-supported RPD, the lingual bar is normally the mandibular major connector of choice. Since the denture is entirely tooth-supported with no tissue-supported extensions, the simpler lingual bar design provides adequate rigidity and strength while being more comfortable and hygienic than more complex designs.
54185
Conservative Dentistry
1. The use of adhesive sealants: Adhesive sealants are thin, plastic coatings
applied to the chewing surfaces of the back teeth. They fill in the grooves and
depressions, creating a smooth surface that is easier to clean. Sealants act as
a barrier, preventing food and bacteria from lodging in these areas and thus
reducing the risk of tooth decay. This is considered the best preventive measure
because it directly addresses the anatomical vulnerability of the teeth and can
be applied quickly and painlessly.
2. Topical fluoride application: While topical fluoride is beneficial in
preventing dental cavities, it is not as effective as sealants in preventing pit
and fissure caries. Fluoride helps to strengthen the enamel and makes it more
resistant to acid attacks from plaque bacteria. However, because the pits and
fissures are already deep and narrow, fluoride may not always reach these areas
effectively. Sealants, on the other hand, provide a physical barrier that
fluoride cannot always penetrate.
85800
PedodonticsProphy jet utilizes water with air powder of sodium bicarbonate.
69072
Anatomy
Facial Artery: 1: True, it has cervical and facial portions. 2: True, it arises from the external carotid artery above the lingual artery. 3: True, it crosses the mandible at the anterior edge of the masseter muscle. 4: False, the cervical portion lies beneath the platysma,
but the facial portion does not exactly lie "superficial in the carotid
triangle"; rather, the facial artery travels more superficially than the
cervical part in its course.
58128
RadiologyDouble intensifying screens with screen film significantly reduce exposure time by amplifying the X-ray effect. The screens convert X-ray photons to light photons, which expose the film more efficiently than direct X-ray exposure. This reduces radiation dose to the patient while maintaining image quality.
54205
Dental Materials
The ANSI/ADA Specification No. 96 (ISO 9917) stipulates a minimum 24-hour compressive strength of 70 MPa for standard luting consistency dental cement.