Optical impressions assessment for overlay restorations with rubber dam: A clinical trial.

Objective: The possibility of making impressions of teeth prepared with a rubber dam in place has been proposed; however, this requires trimming and rescanning the mesh, which has been described as a cause of accuracy loss. This study aims to clinically determine whether overlay restorations obtained from a scan with a rubber dam in place have equivalent marginal fit, contact points, and occlusal fit to the same type of restorations obtained from a scan without a rubber dam.

Material And Methods: Thirty patients who underwent overlay restoration of a molar with at least one neighbouring tooth were selected.