During restorative procedures, a matrix band properly wedged interproximally with a wooden wedge enables excess filling material to enter the gingival crevice. The wedge also forces the teeth apart so that an open contact can be established.

Question

Quizplus · Accepted Answer

The role of a properly placed matrix band with a wooden wedge is to prevent excess filling material from entering the gingival crevice. The matrix band retains the material being packed against the tooth, and the wedge forces the inside of the matrix band against the tooth so that no excess filling material can overflow into the gingiva. Open contacts are not desirable and are often a prelude to periodontal disease. The wedge forces the teeth apart so that a tight interproximal contact can be made.

During Restorative Procedures, a Matrix Band Properly Wedged Interproximally with a Wooden