FIELD: dentistry.
SUBSTANCE: group of inventions relates to a computerized method of determining thicknesses (t) of a three-dimensional dental model (1) to form a corresponding three-dimensional dental object (1), such as a surgical template, by means of an additive manufacturing device, as well as to a computer-readable storage means and a computer system, designed to perform the steps of the above method. The method includes the stages in which: the thicknesses (t) of the layers are determined according to the adaptive delamination algorithm, in which the thickness of the layer (2) is calculated according to the ratio based on the slope of the normal vectors (n) to the surface elements (s) of the dental 3D model ( 1), which at least partially cover the layer (2), relative to the horizontal direction (x; y). Moreover, for at least one surface element (s) of the dental 3D model (1) an accuracy requirement is selectively applied from at least two selectable different accuracy requirements, which accordingly change differently at the stage of determining the thicknesses, wherein the specified ratio is based on the slope a normal vector (n) to at least one surface element (s). At least two selectable different accuracy requirements contain at least: a high accuracy requirement, which allows to obtain, according to the specified modified ratio, a layer thickness (t) that is smaller than the layer thickness (t) determined according to the specified unchanged ratio, and low precision requirement (L), which allows to obtain, according to the said modified relationship, a layer thickness (t) greater than the layer thickness (t) determined according to the said unchanged relationship.
EFFECT: provision of a method of determining the layer thickness values of a three-dimensional model for generation using an additive manufacturing device.
12 cl, 5 dwg
