Which type of instrument is classified as a universal curette?

A universal curette is specifically designed for scaling and root planing within periodontal therapy. This type of instrument features a rounded toe and is curved to allow for adaptation to various tooth surfaces, making it versatile for removing both supragingival and subgingival plaque and tartar. Its design enables clinicians to effectively scale teeth in different areas of the mouth, including posterior and anterior teeth, thus serving multiple purposes in periodontal treatment.

In contrast, instruments classified for probing are focused on measuring periodontal pocket depths and assessing gum health rather than removing deposits. Suturing instruments are designed purely for closing surgical incisions and providing hemostasis, while extraction instruments are specialized tools used for removing teeth. Therefore, the universal curette is distinctively suited for scaling, which is why that classification is correct.