What type of periodontal instrument is specifically designed for use in scaling and root planing?

The Gracey Curette is specifically designed for use in scaling and root planing due to its unique design features. These instruments have a blade that is angled to allow for effective scaling of the root surfaces while minimizing trauma to the surrounding periodontal tissues. The Gracey Curette is also area-specific, meaning different blades are tailored for use on particular tooth surfaces, which enhances precision when removing calculus and smoothing root surfaces.

In the context of scaling and root planing, the curved shape of the Gracey Curette facilitates access to the root surfaces that are typically challenging to reach with other instruments. This is essential for the effective removal of subgingival deposits and for achieving a smooth root surface, promoting healing and improving periodontal health.

While other instruments listed, such as scalers or universal curettes, can also be used for scaling and root planing, they do not offer the same level of specialization and effectiveness on specific tooth surfaces as the Gracey Curette does. Thus, the Gracey Curette stands out as the most appropriate tool for this specific periodontal procedure.