What is typically used in conjunction with the sectional matrix during dental procedures?

The most appropriate tool used in conjunction with a sectional matrix during dental procedures is a wedge. The wedge provides necessary interproximal support, preventing gaps between the matrix and the tooth, thereby ensuring that the restorative material is properly contoured and sealed against the tooth. This is critical for preventing micro-leakage and ensuring effective bonding of the restoration to the tooth structure.

In dental practice, the sectional matrix system is often utilized to restore posterior teeth, especially when dealing with Class II restorations. The wedge aids in creating a tight contact between the adjacent teeth as well as supporting the matrix band in positioning it correctly. The other options, while useful in certain contexts, do not serve this specific function alongside a sectional matrix. Thus, the wedge is essential for achieving optimal results in these restorative procedures.