NEET MDS Shorts
55960
NEETMDS
Advantages of fiber posts over metal posts include bonding to dentin, better esthetics, and a modulus of elasticity similar to dentin, which reduces the risk of root fracture.
83761
Oral PathologyProthrombin time should be preferred to ascertain fitness for extraction in a patient on warfarin.
99406
PedodonticsConcavities in facial and lingual alveolar walls are called craters.
96543
Oral SurgeryDry socket (alveolar osteitis) is a painful condition that occurs after a tooth extraction when the blood clot fails to develop or is dislodged. The exposed bone and nerve endings in the socket cause a dull, aching, and continuous or almost continuous pain, which can be moderate to severe. A key characteristic is the absence of significant swelling or signs of infection (like pus or high fever) in the adjacent tissues, distinguishing it from an infection.
84145
OrthodonticsFor an 8-year-old patient with skeletal anterior open bite, treatment involves Frankel appliance combined with high-pull headgear to control vertical growth and promote proper jaw development.
12902
Dental Materials
Knoop hardness test - Diamond of rhombic shape (The long axis of indentotion is measured) The Knoop hardness test is used to obtain the values for both exceedingly hard and soft materials. The
Vickers (Diamond pyramid test) - Diamond of square base shape (The diagonal length of the indentation is measured)
Rockwell - Diamond of conical shape (The penetration depth is measured)
Brinells - Steel ball (The diameter of indentation is measured)
hardness value is independent of the ductility of the material.
28161
NEETMDS
Failure of prostheses cemented with zinc polycarboxylate typically occurs at the interface between the cement and the prosthesis, often due to inadequate adhesion to the prosthesis material compared to the strong bond formed with the tooth structure.
47857
Orthodontics
In a child with a skeletal Class I relationship and slight overjet, thumb sucking can contribute to the maintenance of the overjet due to the anterior teeth being pushed forward by the thumb. If the child discontinues thumb sucking, the anterior teeth may naturally reposition themselves, leading to a reduction in overjet.
Option 2 is incorrect because while the eruption of permanent canines can influence the occlusion.
Option 3 is also incorrect; the lower incisors would not necessarily incline labially if the thumb sucking habit is stopped.
78994
Dental Materials
49561
Oral Medicine
Neurolept analgesia is a state of sedation and analgesia produced by the combined use of a neuroleptic agent and a narcotic analgesic. Neurolept anesthesia, on the other hand, includes the administration of nitrous oxide along with the neuroleptic agent and narcotic analgesic, which induces a deeper state of unconsciousness and is used for certain surgical procedures. The addition of nitrous oxide enhances the overall anesthetic effect.