Root planning is primarily performed in which area with curettes?

Root planning is primarily performed subgingivally because this procedure targets the removal of plaque, tartar, and diseased tissue from the root surfaces that are located beneath the gumline. The objective of root planing is to create a smooth tooth surface that can help in the reattachment of healthy tissue and support healing.

When performed subgingivally, the use of curettes allows the dental hygienist or periodontist to access the deeper pockets formed due to periodontal disease. This area often harbors bacteria and calculus that contribute to periodontal issues. By effectively cleaning the root surfaces in this zone, root planing directly addresses the sources of inflammation and infection, promoting better periodontal health.

In contrast, while supragingival cleaning focuses on the crown of the teeth above the gumline and may be easier to access, it does not adequately address the problems that reside under the gums where more advanced periodontal disease may occur. Interdental cleaning targets the spaces between teeth, but again, it is more superficial in nature and does not involve the root surfaces. External cleaning would not be relevant in this context, as it refers to treating the outer parts of the teeth and gums rather than the root surfaces themselves. Thus, root planing's primary focus and effectiveness