Dental Radiology 2024 Exam Questions with Correct Answers
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Course
Dental Radiology
Institution
Dental Radiology
Dental Radiology 2024 Exam Questions with Correct Answers
Radiation injury sequence - Answer-1. Latent period
2. Period of injury
3. Recovery period
4. Cumulative effects
Seen in person irradiated, changes not transmitted to future generations - Answer-Somatic Effects
Not seen in person...
Shapes x-Ray beam into more restricted area and reduces scatter. Reduction in size of
beam of radiation - Answer-Collocation
Beam size at pt's face can be no larger than - Answer-2.75 inches
Rectangular collimation reduces skin's surface area by - Answer-50-60%
Less volume of tissue is irradiated if - Answer-Long cone is used (PID)
Long cone = - Answer-Less scatter
During exposure rad reduction - Answer-1. Thyroid collar
2. The lead apron
3. Fast film
4. Intensifying screen
5. Rectangular collimation
Protects radiosensitive tissues of thyroid gland - Answer-Thyroid collar
Protects reproductive and blood forming tissues - Answer-Lead apron
Lead apron absorbs how many % of scatter radiation that would have reached
reproductive tissues - Answer-90%
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