What instrument is used to shape proximal areas with a ball bur in dental procedures?

The correct instrument used to shape proximal areas with a ball bur in dental procedures is the Tofflemire. The Tofflemire retainer is primarily used to hold a matrix band in place during restorative procedures, which helps in shaping the dental material in proximal areas where restorations are being placed.

When using a ball bur, the Tofflemire’s design allows for precise shaping that matches the curvature of the tooth structure, ensuring a proper contour and fit for the restoration. This is crucial for maintaining the natural anatomy of the teeth and facilitating effective contact points between adjacent teeth, which is key for both function and aesthetics.

In comparison, a wedge is used to help hold the matrix band against the tooth to create a better seal and redistribute the restorative material, but it does not shape the proximal areas itself. The Dycal instrument is designed for placing calcium hydroxide, which is a different function related to pulp capping rather than shaping. A dental dam is utilized for moisture control and isolation during procedures but does not play a role in shaping the tooth structure.