National Dental Examining Board of Canada (NDEB) Practice Exam

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What confirms the clinical diagnosis of NUG?

Pain and halitosis
Interdental papillae covered by a greyish-white membrane and microscopic exam
Pain and reddening of the gingiva
Halitosis and loose teeth

The correct answer is: Interdental papillae covered by a greyish-white membrane and microscopic exam

A Pain and halitosis alone may be indicators of NUG, but they can also be symptoms of other oral health conditions. C: Pain and reddening of the gingiva are also common symptoms of NUG, but they are not specific enough to confirm a diagnosis. D: Halitosis and loose teeth may be present in patients with NUG, but they are not definitive signs and may also be symptoms of other conditions. Interdental papillae covered by a greyish-white membrane and microscopic examination is the most accurate way to confirm a clinical diagnosis of NUG. This membrane is a characteristic feature of NUG and microscopic examination can reveal the presence of bacteria associated with the condition.