The present invention relates to a method comprising acquiring two dimensional data from one or more intraoral structures of a dental patient at a video rate, reconstructing a digital surface representation of the one or more intraoral structures, displaying the digital surface representation at the video rate, acquiring additional two-dimensional data from the one or more intraoral structures in a subsequent frame of data at the video rate, reconstructing a subsequent digital surface representation from the additional two-dimensional data at the video rate combining the digital surface representation and the subsequent digital surface representation at the video rate to provide a three-dimensional representation of the one or more intraoral structures, providing a visual display of the three-dimensional representation at the video rate in real time, and providing a visualization within the visual display, the visualization updated at the video rate to identify regions of inaccurate scan data within the three-dimensional representation.