Intraoral and extraoral scanning systems are continuously improving in terms of operational reliability and image quality. This creates new application options for the standard use of these systems in dental practice. Three-dimensional scans for volumetric and differential analysis of jaw position over time can be generated by superimposing partial or full-arch scans recorded at different time points. These analyses can be performed in a wide range of dental applications to compare and follow treatments or diagnoses over time. In this article, we will describe the indications and applications for OraCheck, a new software application that will be available to Cerec users in Spring 2014. Keywords: Optical Impression, Diagnostics, 3-D-Monitoring, Volume analysis, 3-D-Difference