Which would NOT be used for smooth surface carving in an amalgam procedure?

In the context of smooth surface carving during an amalgam procedure, it's important to understand the specific uses of different dental carving instruments. The cleoid discoid carver is primarily designed for carving occlusal surfaces and is effective in creating occlusal anatomy due to its pointed cleoid end and disc shape. It excels at carving and defining grooves and anatomy in the more vertical planes of a restoration, rather than on the smooth surfaces which require a more refined tool for finishing.

In contrast, both the Hollenback carver and Ward's C carver are specifically designed for smooth surface carving. The Hollenback carver has a flat blade perfect for refining and smoothing out the marginal ridges and the smooth surfaces of a restoration, allowing for a more aesthetic finish. Likewise, Ward's C carver, with its unique shape, is effective in contouring and smoothing the surfaces.

Selecting an instrument suitable for a specific task is crucial for achieving optimal results, and understanding the design and purpose of each tool helps ensure that the correct instrument is utilized for smooth surface carving in amalgam restorations. In this case, the cleoid discoid carver is not appropriate for this specific task, making the selection justified.