What is the purpose of using a wedge during a restorative dental procedure?

The use of a wedge during a restorative dental procedure is primarily to facilitate the proper adaptation of the matrix band. When a tooth is prepared for a filling, a matrix band is used to create a temporary wall around the tooth, allowing for the restoration material to be placed accurately. The wedge is positioned between the matrix band and the adjacent tooth, helping to hold the band securely in place and ensuring that it conforms well to the contour of the tooth being restored.

This adaptation is crucial for achieving a tight contact point with the adjacent teeth, which is important for both function and esthetics. Adequate contact prevents food impaction and supports the natural alignment of teeth, enhancing the longevity of the restoration.

The wedge also helps to minimize any potential gaps or irregularities that could occur if the band isn't properly contoured against the tooth, thereby contributing to a more effective and seamless restoration process.