What instrument is used to adapt the periodontal dressing interproximally during placement?

The plastic instrument is the ideal tool for adapting periodontal dressing interproximally during its placement. This instrument is specifically designed to aid in manipulating soft materials like periodontal dressings without causing irritation or damage to the surrounding tissues. The smooth, non-metallic surface of a plastic instrument is particularly valuable as it minimizes the risk of scratching or injuring the soft tissues in the mouth, which can occur with metal instruments.

When applying the dressing interproximally, the plastic instrument allows for precise placement and adaptation to the contours between teeth, ensuring that the dressing maintains occlusal harmony and effectively protects the surgical site from food debris and bacterial invasion.

While other options are useful in various dental procedures, they are not specifically tailored for this purpose. For instance, a metal spatula may be effective in mixing or applying materials but lacks the gentle adaptability suited for delicate interproximal areas. Scissors would not be appropriate for placing or adapting the dressing, as they are primarily used for cutting. The dental explorer, although useful for probing and examining, does not have the design needed for placing or adjusting materials in tight spaces. Hence, the plastic instrument is the most suitable choice for this specific task.