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General Medicine General db42c597

A 26 year old male presented to the dental clinic with pain in the right lower back tooth region. On examination, it was evident that pericoronitis is present with #48. The inherent filtration of the machine used is 3 mm of Aluminium operating at 70 kVp. By the use of this machine, the surface exposure:

A
Reduces to 20% of the exposure without filtration
B
Reduces to 80% of the exposure without filtration
C
Reduces to 30% of the exposure without filtration
D
Is not reduced at all

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