NEET MDS Shorts
15578
Orthodontics
SOLUTION Altered respiratory pattern, such as breathing through the mouth rather than the nose, could change the posture of the If these postural changes were maintained, face height would increase, and posterior teeth would super-erupt;
head, jaw, and tongue. This in turn could alter the equilibrium of pressures on the jaws and teeth and affect both jaw growth and tooth position.
In order to breathe through the mouth, it is necessary to lower the mandible and tongue, and extend (tip back) the head.
unless there was unusual vertical growth of the ramus, the mandible would rotate down and back, opening the bite
anteriorly and increasing overjet; and increased pressure from the stretched cheeks might cause a narrower maxillary dental arch.
66570
Oral PathologyRadiation produced from the tube other than the focal spot is called stray radiation.
65150
Oral SurgeryDry socket (alveolar osteitis) is a painful condition that occurs when the blood clot at the site of a tooth extraction fails to develop or is dislodged. The standard treatment involves gentle irrigation to remove debris and then placing a medicated dressing to soothe the pain and protect the area. Curettage is generally avoided as it can further delay healing,
43534
AnatomyGag reflex is lost due to paralysis IX Nerve The pharyngeal branch of IX nerve supply the mucosa of pharynx
69509
Endodontics
Upon direct exposure of a healthy dental pulp to the oral environment, an acute inflammatory response occurs locally at the site of injury.
55211
General PathologyC3 is the complement component that can be activated in both the classical and alternative pathways of the complement system.
33992
RadiologyRadiographic detection of carious lesions or dentinal destruction typically requires a certain threshold of loss of tooth structure. Studies have shown that a loss of approximately 40 microns of dentin is necessary for a radiograph to show evidence of carious lesions.
94087
Conservative DentistryFor class V composite restoration, the best method to retract gingiva is by using a rubber dam. This provides isolation, visualization, and moisture control, which are crucial for successful adhesive techniques. While other methods like retraction cords or electrosurgery may be used in some cases, they are not the most suitable for routine class V restorations.
23265
EndodonticsFor an 8-year-old child with fractured maxillary central incisor showing no pulp response after 10 months with no periapical lesion, the treatment of choice is complete debridement and apexification. This is because: 1) The immature root has an open apex requiring apexification, 2) Non-responsive pulp indicates necrosis requiring debridement, 3) Absence of periapical lesion suggests early intervention, 4) Apexification allows root end closure for proper obturation, 5) Conventional RCT cannot be done with open apex. Calcium hydroxide is typically used for apexification in such cases.
73331
OrthodonticsThe labial bow in an activator is constructed with 0.8 mm wire, slightly heavier to provide stability and retention.