Which dental accessory is used to adapt a matrix band and aid the restoration process by creating separation between teeth?

• A. Matrix Retainer
• B. Dental Dam Clamp
• C. Wedge
• D. Articulating Paper

Answer: (C)

The main idea here is creating a precise proximal seal and contact by separating the teeth just enough to adapt the matrix band. A wedge is placed in the interproximal space while the matrix band is positioned around the tooth being restored. That slight separation lets the matrix band seat firmly against the tooth on both sides, shaping a tight,well-defined proximal contact and preventing material from extruding and causing an overhang. It also helps the band conform to the tooth contours and protects the gingival margin while the restoration cures.

The other items don’t serve this separation/adaptation role: a matrix retainer holds the band in place but doesn’t create lateral separation; a dental dam clamp is for isolating the area with a rubber dam; articulating paper is used to check bite marks after the restoration, not to aid band adaptation.