What is typically assembled with the Tofflemire to retain material during a procedure?

The Tofflemire retainer is specifically designed to hold a matrix band in place around a prepared tooth. The matrix band acts as a barrier that retains restorative material, ensuring that it properly shapes the filling and prevents any material from inadvertently spilling over into the surrounding gingival tissue or into the contact areas with adjacent teeth. This is crucial for achieving a well-contoured restoration that mimics the natural anatomy of the tooth.

In contrast, soft tissue, instruments, and excess material do not fulfill the same function as the matrix band. Soft tissue may interfere with the procedure but is not used to retain restorative material. Instruments are tools used during dental procedures but are not assembled with the Tofflemire retainer itself. Excess material is an outcome of the procedure that needs to be managed, rather than something that assists in retaining or shaping material during the filling process. Thus, the matrix band is the correct component that works in conjunction with the Tofflemire to achieve the desired results in dental restorations.