Method for characterizing an intraoral organ

A method for characterizing an intraoral organ to be characterized, said method comprising the following steps:

• 1) modelling the intraoral organ to be characterized in the form of a digital three-dimensional model, or “model to be characterized”, comprising a mesh of points defining a surface;
• 2) placing said model to be characterized in a standardized configuration with respect to a digital three-dimensional model, called “initial reference model”, comprising a mesh of points, called “initial reference points”, the number of initial reference points being less than 20% of the number of points of the model to be characterized;
• then
• 3) determining a final reference point, for each initial reference point, by means of a deformation algorithm, then
• determining a set of values determining the position of the final reference point and/or a final elementary surface depending on the final reference point, the deformation algorithm determining the positions of the final reference points so that a final reference model consisting of a mesh of the final reference points matches the model to be characterized as closely as possible;
• 4) generating a characteristic vector grouping, in an ordered manner, the values determined in step 3) for all said initial reference points.