A method and system for acquiring data from an individual for preparing a 3D model. The method includes acquiring first, second, and third data sets. The first data set facilitates structural modeling of maxillary and mandibular arches of the individual. The second data set facilitates relating a maxilla of the individual to the maxillary arch, and a mandible of the individual to the mandibular arch. The individual is confirmed to be at the physiological rest position when the third data set is acquired. The third data set facilitates structural modeling of at the maxilla and the mandible, wherein a maxillo-mandibular relationship is at the physiological rest position. The system includes a first data acquisition module for acquiring the first data set, a second data acquisition module for acquiring the second and third data sets, and a processor in operative communication with the first and second data acquisition modules.
