NEET MDS Shorts
98787
State PSC PYQAccording to the inverse square law, intensity ? 1/(distanceČ). Doubling the distance decreases the intensity to 1/4 of the original value.
82193
Dental Anatomypermanent maxillary First molar teeth normally has four root canals
56330
RadiologyAccording to the American Society of Anesthesiologists, the physical status of a patient with mild systemic disease that limits activity but is not incapacitating may be classified as ASA II.
84390
Orthodontics
Solution The following are the effects when Herbst appliance used for treatment of Class II malocclusion:
1. Class I molar relation or over-corrected Class I molar relation.
2. Increased mandibular growth
3. Distal driving of maxillary molars which helps to achieve molar relation.
4. Reduction of overjet by increasing mandibular length and proclination of mandibular incisors.
5. Inhibitory effect on sagittal maxillary growth
6. Weislander suggested double contour of glenoid fossa which indicates anterior transformation of glenoid fossa
7. Increased SNB angle and decreased SNA angle.
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.
21544
Oral PathologyScleroderma involves tightening of oral mucosa, periodontal involvement, and Raynaud's phenomenon.
30141
ProsthodonticsExcessive application of pressure on the posterior portion of the occlusal rim during jaw relations results in an anterior open bite.
93349
Periodontics
63374
Conservative DentistryExplanation: When dealing with adjacent Class III cavities, it is generally recommended to prepare the larger cavity first and fill it last. This approach allows the dentist to have better access and visibility when preparing the larger cavity, which can be more complex. Filling the larger cavity last helps to avoid contamination and ensures that the smaller cavity can be filled with precision without compromising the integrity of the larger restoration.
60287
PharmacologyCompetitive antagonists bind to receptors but do not activate them, meaning they have no intrinsic activity. They have affinity for the receptor, allowing them to compete with agonists for binding.