The Tofflemire matrix is best described as what?

• A. Sectional matrix
• B. Siqveland matrix
• C. Tofflemire matrix
• D. Wedges

Answer: (C)

Forming a proximal wall for posterior direct restorations, the Tofflemire matrix is the classic retainer-and-band matrix system used to shape and support the restorative material as it Curves around the tooth. The metal band wraps around the tooth and is held in place by a retainer, creating a temporary wall that helps reproduce the natural contour and establishes a proper contact with the adjacent tooth. Wedges and sectional matrices are different tools or systems: wedges aid adaptation and contour but don’t form the wall themselves, sectional matrices use a separate band design for contact creation, and the Siqveland matrix refers to another, different matrix approach. So, the Tofflemire matrix is best described as the standard retainer-and-band matrix system for proximal walls in posterior restorations.