Which stroke is characterized by a lighter, shaving motion for cleaning?

The root debridement stroke is specifically designed for the removal of plaque, biofilm, and debris from root surfaces, particularly in instances of periodontal disease. This stroke utilizes a lighter, shaving motion that allows for effective cleaning without damaging the tooth structure or surrounding tissues. The technique aims to smooth the root surfaces and improve the health of the periodontal tissues, making it an essential aspect of periodontal therapy.

In contrast, the calculus removal stroke is generally more forceful and used to remove larger deposits of calculus. The assessment stroke is employed primarily for tactile evaluation and is lighter but not specifically focused on cleaning. Lastly, the activation stroke typically refers to the action used to facilitate the ultrasonic or manual instruments, which can vary in pressure and motion but isn't characterized by the lighter, shaving motion seen in root debridement.