California Registered Dental Assistant (RDA) Written Practice Exam

What can caries automated detector devices only be used on?

Previously treated teeth Virgin tooth structures Teeth with fillings Dentures

Correct Answer:

Virgin tooth structures

Explanation:

Automated detector devices can only be used on virgin tooth structures because they work by scanning the tooth surface and comparing it to a database of normal tooth structures. Previously treated teeth may have abnormalities that could potentially affect the accuracy of the device. Teeth with fillings also have altered surfaces and may not provide accurate readings. Dentures, being artificial teeth, do not have natural tooth structures and therefore, cannot be used with automated detector devices.

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