NEET MDS Shorts
82797
PeriodonticsThe treatment for necrotizing ulcerative gingivitis (NUG) typically involves debridement to remove necrotic tissue and improve oral hygiene. Providing oral hygiene instructions is also crucial to prevent recurrence.
33747
Oral PathologyFocal periapical osteopetrosis is NOT a radiolucent lesion - it appears as a well-defined radiopaque (sclerotic) area around the apex of teeth. It represents a localized increase in bone density. Ameloblastoma appears as multilocular radiolucency with soap-bubble appearance, cherubism shows bilateral multilocular radiolucencies, and odontogenic cysts appear as well-defined radiolucent lesions with radiopaque borders.
20637
EndodonticsThe primary cause of weakening in an endodontically treated tooth is the loss of sound tooth structure during the access cavity preparation and subsequent canal instrumentation. The extent of this preparation, particularly the removal of marginal ridges and cusps, significantly compromises the tooth's structural integrity.
31514
Dental Materials
The recommended force for condensing a composite resin using a 0.5 mm diameter condenser nib is 3.75 pounds. This force is considered optimal and is well within the physiologic limits of the tooth.
36440
Dental Materials
Light-activated dental composite resins are usually cured with blue light at a peak wavelength of about 470 nm, which is absorbed by the photoinitiator, such as camphorquinone.
32338
INI CET
The nasion is a well-defined anatomical landmark used in cephalometry, allowing for precise location on a lateral cephalogram. Other points like Point A, Condylon, and Gonion are less precise or more variable in their definition and location on a 2D image.
62337
Oral PathologyTrotters syndrome involves the nasopharynx and is caused by malignant tumors (usually nasopharyngeal carcinoma) affecting the eustachian tube opening and surrounding structures. The syndrome includes unilateral conductive hearing loss, unilateral serous otitis media, and trigeminal neuralgia due to tumor involvement of the nasopharyngeal region and skull base.
49375
Oral SurgeryMost commonly used local anaesthesia is 1: 80,000 xylocaine HCL.
40326
ProsthodonticsThe width of a palatal strap should not be less than 8mm to provide adequate rigidity and strength. A palatal bar is narrower (typically 4-6mm), while the strap is wider to distribute forces over a larger area. The increased width of the strap provides better support and reduces tissue pressure per unit area.
51448
Oral SurgeryXylocaine strength used in dentistry is 2%.