Abstract: The virtual aligner is used to re-align the two virtual components of a three dimensional digital model, such as virtual dental or orthodontic arches. An infinite number of new alignments can be created and saved by the user without altering the original record. The virtual aligner allows the user to move the mandibular virtual arch in relation to a static maxillary virtual arch. Translational movement of the virtual mandible is along each of the x, y, or z axes, left and right, up and down, and back and forth, respectively. Rotational movement of the virtual mandible is around each of the x, y or z axes.

Abstract: The invention is a three dimensional virtual articulator used for but not limited to diagnosing and treatment planning for dental and medical specialties, including orthodontics, prosthodontics, endodontics, periodontics, orthognathic surgery, implant positioning, crown and bridge and prosthesis design. The operator enters patient-specific anatomical measurements for condylar angles, Bennett angle and shift, lateral excursive and protrusive movements, and maximum mandibular opening, and a selection of preset or customizable intercondylar distances to simulate the unique mandibular range of motion. The patient-specific measurements create a customized complex polygon that illustrates the maximum limits of the mandibular range of motion. The operator is able to use onscreen controls to move the virtual mandible in relation to the virtual maxilla within the parameters described by the patient-specific measurements input by the operator.