Which of the following characteristics belongs to a universal curette?

A universal curette is designed for versatility in periodontal care, making it effective for use on a variety of tooth surfaces, including both anterior and posterior teeth. This unique characteristic allows the dental professional to effectively adapt the instrument to different tooth morphologies and accessibility areas within the oral cavity.

The design features a rounded toe and a convex back that enable the curette to reach both supragingival and subgingival areas comfortably. This adaptability is crucial for thorough scaling and root planing, as it aids in effectively removing calculus and biofilm from diverse tooth surfaces, contributing to improved periodontal health.

Other options, while they may describe characteristics of certain instruments, do not accurately reflect universal curettes. For instance, some hand instruments are specifically tailored for posterior teeth or possess a pointed tip for more precise applications. However, these features are not typical of a universal curette's design or intended use.