Method of estimating at least one of shape, position and orientation of dental restoration

摘要

The invention relates to the shape of one or more teeth to be included in a dental restoration intended to replace one or more missing teeth in a patient with one or more existing teeth, or a partial tooth defect, Provided is a method of obtaining an estimate of position and / or orientation. The method comprises adapting the set-up of the virtual tooth to the anatomical situation of the intraoral area of the patient, said virtual tooth set-up separating individual teeth arranged in the dental arch or a segment thereof Includes surface mesh. Virtual tooth setup is optimized by representing an energy function that represents a measure of quality for the virtual tooth setup, and for a given dentition or segment thereof at least the shape of the individual teeth, adjacent It is adapted by using a statistical model that describes the probability distribution of the relationship between the shapes of the teeth and / or the relationship between the position and / or orientation of adjacent teeth. The fitted virtual tooth setup obtained from the optimized energy function is subsequently used to estimate the search for shape, position and / or orientation. [Selected figure] Figure 1