Horizontal unfavourable or favourable fractures of mandible can be viewed best in 1) Lateral oblique 30 degrees 2) Lateral oblique 15 degrees 3) PA view of mandible 4) Submentovertex view
RadiologyAnswer: 1
Badges should be worn by dental technician every 1) 1 month 2) 3 months 3) 6 months 4) 4 months
RadiologyAnswer: 1
Mean exposure of radiation from pantamograph is 1) 90 mR 2) 120 mR 3) 250 mR 4) 300 mR
RadiologyAnswer: 3
Grid is used 1) To remove secondary radiation 2) Filter the radiation 3) Removes scattered radiation 4) None of the above
RadiologyAnswer: 3
The normal anatomical structure which is radiopacent and overlaps maxillary molar roots in short cone technique 1) Zygomatic process 2) Maxillary tuberosity 3) Maxillary sinus 4) Palatine process of maxilla
RadiologyAnswer: 1
Fractures of remus and body of mandible can be best seen in 1) Lateral oblique 30 degrees 2) Lateral oblique 15 degrees 3) PA view of mandible 4) Occipitomental view
RadiologyAnswer: 2
Major source of secondary scattered radiation 1) Compton effect 2) Photoelectric effect 3) Thompson effect 4) All of the above
RadiologyAnswer: 1
The following is at more risk from exposure of a dental X-ray 1. Bone marrow 2. Breast 3. Brain 4. Thyroid
