1. A method for creating a full arch model comprising an upper and lower jaw in a correct anatomical relationship using a statistical technique applied to a set of individual tooth models, comprising the steps of: acquiring multiple sets of digitized dental arches with a pair of maxillary upper and mandibular lower jaws in a correct anatomical relationship; gathering a pre-defined set of landmark points on the occlusal surface of each arch all in the same order and same corresponding positions across multiple arches; using the gathered set of landmark points to perform statistical modeling to create a linear subspace of arch feature points; and using the feature points to construct a full arch tooth model with individual crown models fit to a given set of arch points.