With powered instruments, what type of pressure should be used?

• A. Light pressure only
• B. Moderate pressure
• C. Heavy pressure
• D. No pressure

Answer: (A)

Powered instruments work by vibrating tips, so you want to let that vibration do the work. Light pressure allows the tip to move freely and transfer energy efficiently to the deposits without dampening the motion. Pressing harder dampens the vibrations, reduces cleaning effectiveness, and increases the risk of damaging tooth surfaces or irritating the soft tissues. Moderate or heavy pressure can cause overheating, gouging, or rough root surfaces, and no pressure wouldn’t let the instrument contact and remove calculus effectively. So the best approach is to use light, gentle pressure to maintain control, maximize efficiency, and minimize harm.