National Dental Assisting Examining Board (NDAEB) Practice Exam

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Prepare for the National Dental Assisting Exam with comprehensive quiz questions, including multiple choice and detailed explanations. Equip yourself for success!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What is the common term for an aphthous ulcer?

Cold sore
Canker sore
Oral thrush
Denture sore

The correct answer is: Canker sore

An aphthous ulcer is commonly referred to as a canker sore. These painful lesions typically develop on movable tissues in the mouth, such as the inside of the cheeks, lips, and tongue, and are characterized by a round or oval shape with a white or gray center and a red halo. Canker sores can be triggered by stress, hormonal changes, certain food intolerances, or nutritional deficiencies, but they are not caused by viral infections. This term is widely recognized and used in both clinical and everyday contexts, differentiating it from other oral conditions or lesions, which may have different causes and treatment approaches. Understanding this terminology is essential for effective communication in dental and healthcare settings.