Which of the following statements is true regarding root surface debridement?

Root surface debridement is primarily focused on removing calculus and biofilm from the root surfaces of teeth. This procedure is crucial for the treatment of periodontal diseases, as it helps to create a clean root surface that can facilitate healing and reduce inflammation. The approach aims to restore periodontal health by eliminating harmful bacteria and their deposits, allowing for subsequent regeneration of periodontal tissues.

The emphasis on calculus and biofilm removal highlights the importance of disrupting the bacterial colonies that contribute to periodontal pathology. This is critical for effective periodontal therapy and overall oral health.

Each of the other statements does not accurately represent the nuances of root surface debridement. For instance, claiming that the procedure involves complete cementum removal is misleading, as the goal is to preserve as much natural root structure as possible while removing only diseased or infected tissues. Similarly, while ultrasonic devices can be a tool used in debridement, the procedure is not limited to ultrasound; manual instruments are also commonly used. Lastly, equating root surface debridement with curettage overlooks the distinct objectives and techniques involved in each procedure.