When placing a tofflemire retainer, the wedge is placed from which surface?

When placing a Tofflemire retainer, the wedge is typically placed from the lingual surface. This technique is important for achieving proper adaptation and stabilization of the matrix band against the tooth structure. By placing the wedge from the lingual side, it helps to securely hold the matrix band in position while also providing the necessary separation between the teeth. This separation is crucial for creating an ideal contact point with the adjacent tooth when the restoration is completed.

Using the lingual approach also allows for better visibility and access, especially in posterior teeth, making it easier to manipulate the retainer without obstructing the view of the working field. Establishing the proper placement of the wedge from the lingual side ensures that the band contours well to the tooth, which is essential for a successful restoration and achieving proper margins.