Which method is NOT appropriate for removing excess cement from an indirect restoration?

Moving instruments in a horizontal direction is not appropriate for removing excess cement from an indirect restoration because it may risk dislodging the restoration itself or damaging the surrounding tooth structure. This technique does not provide the controlled, careful approach needed to maintain the integrity of both the restoration and the tooth.

In contrast, using a vertical motion with instruments allows for precise removal without disturbing the seating of the restoration. Wiping with gauze is effective for gently cleaning the surfaces, and utilizing a scaler at the margin can help access areas where cement may be trapped without jeopardizing the placement of the restoration. Each of these methods is intended to ensure that excess cement is effectively removed while protecting the restoration and the tooth it is affixed to.