MDS PREP
What is the typical intensity range of a dental argon laser?
1) 1-10 mW.
2) 100-500 mW.
3) 500-1000 mW.
4) More than 1000 mW.
Dental argon lasers typically operate within the range of 100 to 500 mW, providing sufficient power for soft tissue procedures and some hard tissue interactions.
Restoration that resembles dental caries radiographically
1) Ca(OH)2
2) Zinc oxide eugenol
3) Amalgam
4) Zinc phosphate
Dental Materials Answer: 1
Which of the following waxes exhibits 100% flow at mouth temperature?
1) Bite registration wax
2) Corrective impression wax
3) Modelling wax
4) Inlay wax
Dental Materials Answer: 2
The elastomeric impression materials showing highest and least potential for distortion on removal are:
1) Polysulfide, polyether respectively
2) Polyether, addition silicone respectively
3) Condensation silicone, addition silicone respectively
4) Polysulfide, addition silicone respectively
Dental Materials Answer: 4
One of the purposes of etching beveled enamel surface is to
1) Increased surface energy
2) Produce macro undercut
3) To increase convenience
4) To prevent caries
Dental Materials Answer: 1
The calcium is added to direct filling gold to
1) Increase the smoothness of the gold
2) Increase the strength and hardness
3) Increase the corrosion resistance
4) All of the above
Dental Materials Answer: 2
Dentin bonding agents usually contain
1) Only hydrophobic component
2) Only hydrophilic component
3) Hydrophobic and hydrophilic
4) Lyophillic and lyophobic component
Dental Materials Answer: 2
Gum dammer of dammer resin is a natural resin added to paraffin to improve its smoothness in moulding and will render it more
1) Toughness
2) Resistant
3) Smoothness
4) Flow
Dental Materials Answer: 3