61285

In orthodontics, wires with a low load deflection rate are typically preferred for areas requiring large tooth movements because they provide a more constant force as the tooth moves and the appliance is deactivated. This constant force is beneficial for controlling the rate of tooth movement.

33020

Rapid onset of action seen by local anaesthesia in small nerve endings is due to the high ratio of surface area to the volume of small nerve fibres.

36844

Erythroblastosis fetalis (hemolytic disease of the newborn) causes hyperbilirubinemia leading to bilirubin deposition in developing teeth. This results in characteristic pigmented teeth with green, brown, or blue discoloration. The pigmentation occurs due to biliverdin and bilirubin incorporation into the dentin and enamel during tooth development. Dentinal dysplasia and hypoplastic teeth are not typical features of erythroblastosis fetalis.

98272

Rheumatic heart disease is most commonly associated with damage to the mitral valve, which is situated between the left atrium and left ventricle of the heart.

50343

The most possible diagnosis is foreign body aspiration

98520

The distance between the tip of the curing light and the tooth is important, as the intensity  of the light source is important. A minimum of 400-mW/cm2 is required. It is recommended that the tip be placed as close to the surface to be cured as is physically possible (within 1 to 2mm).

72853

The Ney surveyor is widely recognized for its simplicity and durability, making it a popular choice among dental professionals.

42074

The liquid phase of a denture base resin primarily consists of nonpolymerized methyl methacrylate (monomer) and a cross-linking agent like glycol dimethacrylate.

43649

1. Infectious hepatitis (Hepatitis A virus): While HAV is resistant to some environmental conditions, it is generally less resistant than HBV.

2. Mumps virus: This is an enveloped virus and is not particularly resistant to environmental factors.

3. Influenza virus: This is also an enveloped virus and is susceptible to heat and many disinfectants.

4. Serum hepatitis (Hepatitis B virus): HBV is known for its resilience. It can survive outside the body for long periods and is resistant to many disinfectants and physical agents, making it one of the more resistant viruses.

51448

Applying a single force to the crown of a tooth creates tipping movements, resulting in rotation around the tooth’s center of resistance.