Badges should be worn by dental technician every 1) 1 month 2) 3 months 3) 6 months 4) 4 months
RadiologyAnswer: 1
If shorter exposure time is needed for exposing dental firm 1) kVp can be increased 2) Mili ampere is decreased 3) Long cone can be used 4) Lead diaphragm is removed
RadiologyAnswer: 1
Open ended lead-lined cones reduce 1) Intensity of scattered radiation 2) Intensity of primary radiation 3) Level of scattered radiation 4) All of the above
RadiologyAnswer: 3
Radiographically mental foramen lies between the roots of 1. Canine and first premolar 2. First and second premolars 3. Second premolar and first molar 4. In the incisor region
RadiologyAnswer: 2
Quantity of the X-ray beam is governed by 1) kVp 2) mAs 3) Filament current 4) Length of the X-ray tube
RadiologyAnswer: 1
Which of the following is most radiolucent 1. Porcelian 2. Composites 3. Dental amalgam 4. Zinc-oxide eugenol