Which of the following is the main difference between a manually tuned and an autotuned ultrasonic instrument or unit?

Question

Quizplus · Accepted Answer

The autotuned unit has a preset frequency, and the manually tuned unit does not. The preset frequency within the autotuned unit tunes the cycles per second; therefore, there is no frequency knob. Both manually tuned and autotuned ultrasonic instruments have "clinical power," referring to their ability to remove calculus under load. Both autotuned and manually tuned magnetostrictive ultrasonic scaling units require water as a coolant; piezoelectric ultrasonic scaling units, in general, do not require water as a coolant. Both autotuned and manually tuned units have amplitude (also known as power). Manually tuned and autotuned units refer to magnetostrictive units only; thus, these units require an insert to mechanically remove deposits. Piezoelectric units are all attuned.

Which of the Following Is the Main Difference Between a Manually