Practice Quiz

ADA NBDHE Dental Hygienist

Category - Provision of Clinical Dental Hygiene Services

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The use of ultrasonic instrumentation would be contraindicated when which factor is present?
  1. Furcations
  2. Active periodontal disease
  3. Communicable disease
  4. Controlled diabetes.
Explanation
Answer: C - The use of ultrasonic instrumentation would be contraindicated when communicable disease is present.
Some communicable diseases are transmissible by aerosols such as those generated by ultrasonic instrumentation. Ultrasonic instrumentation is recommended for use around furcations and to remove biofilm associated with periodontal disease.
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