Powered instrumentation is recommended for which of the following tasks?

• A. Biofilm removal
• B. Light to moderate calculus removal
• C. Stain removal
• D. All of the above

Answer: (D)

Powered instrumentation uses ultrasonic or sonic energy to disrupt soft biofilm and loosen deposits on tooth surfaces. This energy makes it especially efficient for removing plaque and calculus that are not heavily mineralized, which is why it’s well suited for biofilm control and light to moderate calculus removal. It can also help with extrinsic stains that are loosely attached to the pellicle or to calculus surfaces, making polishing more effective afterward. While polishing remains important to fully remove remaining stain, powered instrumentation prepares the surface and reduces the stubborn deposits, supporting all three tasks.