This book arises from a need to group and transmit information about the development and applicability of 3D imaging, particularly in craniofacial analysis and occlusion by means of Tatis’ Three-Dimensional Analysis for Volumetric Tomography. Thus, by means of linear and angular measurements, the method allows quantifying the imaging diagnosis. And by means of a visual or graphic analysis, it allows the imaging diagnosis to be qualified with the comparison of geometric figures (triangles, rectangles and squares) and volumetric figures, achieving the diagnostic conclusion in a fast, effective and efficient way. Obtaining the information for diagnostic, manufacturing and treatment processes in this new era of paradigm shifts, where the challenge of dentistry for the coming years will be excellence, speed, comfort and aesthetics. The reader’s interaction with the method is facilitated by dividing the analysis into 6 fields of analysis, according to the area of interest to be diagnosed, planned and therapeutically executed, in a sequential, logical and simple way.