If the Clinician Decides to Use Ultrasonic Equipment Instead of Hand

Multiple Choice

If the clinician decides to use ultrasonic equipment instead of hand instruments, she needs to keep contraindications for ultrasonic use in mind. Which of the following is NOT a contraindication for use of ultrasonic equipment?

A) Client with a communicable disease
B) Client with difficulty swallowing or who is prone to gagging
C) Client with primary or newly erupted teeth
D) Client with multiple amalgam restorations