What is the primary purpose of using a wedge during dental restoration?

• A. To ensure good marginal seal
• B. To maintain interproximal contact contour
• C. To adapt the matrix band
• D. To aid with the filling of material

Answer: (C)

The primary purpose of using a wedge during dental restoration is to maintain interproximal contact contour. A wedge helps create a tight seal and ensures that the restorative material is properly contoured against the adjacent tooth surfaces. It achieves this by providing additional separation between the teeth, which allows for better adaptation of the matrix band and helps to establish a proper contact point with the adjacent tooth.

Utilizing a wedge ensures that the restoration not only has adequate marginal integrity but also maintains the necessary anatomical relationships in the interproximal area. This is crucial for restoring optimal function and aesthetics. The wedge supports the matrix band in position, minimizing any gaps that would compromise the restoration's effectiveness and longevity.

In contrast, while wedges do aid with the adaptation of the matrix band, that is not their primary function, as their main goal is to ensure that the final contour and contact are appropriately established.