Which statement about the ultrasonic cleaning process is true?

The statement about the ultrasonic cleaning process being true is that it requires thorough disinfection after use. Ultrasonic cleaning is an effective method for removing debris from dental instruments by using high-frequency sound waves that create microscopic bubbles in a cleaning solution. These bubbles implode, producing tiny shock waves that dislodge contaminants from surfaces.

After ultrasonic cleaning, instruments must undergo thorough disinfection to ensure that they are free from any remaining pathogens. This step is crucial because while ultrasonic cleaning effectively removes visible debris, it does not provide sufficient disinfection on its own. Thus, a thorough disinfection process is necessary to meet health and safety standards in a clinical setting.

The other statements do not accurately reflect the ultrasonic cleaning process. For example, it is not typically conducted once a month, as the frequency of cleaning should be based on instrument use to maintain safety and hygiene. Additionally, the ultrasonic cleaning process is highly effective in removing debris, contrary to the claim that it is ineffective. Lastly, while manual scrubbing can be done, it is not a characteristic of the ultrasonic cleaning process itself, which relies on sound waves rather than hand scrubbing to clean instruments.