INBDE (Integrated National Board Dental Examination) Practice Exam

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Ace your INBDE with our comprehensive practice exam. Featuring detailed explanations, interactive flashcards, and a wide array of multiple-choice questions designed to mirror the real test. Get ready to surpass your expectations!

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At what size is ditching of amalgam at the margin judged carious?

>0.5mm
>1mm
<0.5mm
<1mm

The correct answer is: >0.5mm

Ditching of amalgam at the margin is a sign of caries, or tooth decay, and should be noted and treated by a dentist as soon as possible. This ditching can occur at any size, but is typically more concerning at larger sizes. Option B suggests that >1mm is the threshold for caries, but this is not accurate as any ditching at the margin should be addressed. Option C suggests that <0.5mm is the threshold, but this is also incorrect as ditching at the margin is still an indication of caries. Option D also suggests that <1mm is the threshold, but again, any sign of ditching at the margin is concerning and should be treated. Option A, >0.5mm, is the most accurate answer as it indicates that any size of ditching at the margin is considered carious and should be addressed by a dentist.