Practice Quiz

ADA NBDHE Dental Hygienist

Category - Provision of Clinical Dental Hygiene Services

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After rinsing and drying an etched tooth surface to achieve a chalky-white appearance, what is the NEXT step to be taken?
  1. Re-etch for good measure
  2. Rinse again
  3. Dry the tooth for 15-20 seconds
  4. Apply the sealant material
Explanation
Answer: C - After rinsing and drying an etched tooth surface to achieve a chalky-white appearance, the next step is to dry the tooth for 15-20 seconds.
It is necessary to ensure that the etched tooth surface is thoroughly dried before placing the sealant. This means that rinsing the tooth is not necessary unless the appearance warrants another application of etchant to improve sealant retention.
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