METHOD OF SIZE MEASUREMENT OF TEETH, CUSPS AND THEIR INTERNAL AND EXTERNAL SLOPES Russian patent published in 2012 - IPC A61C5/00 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely orthopedic dentistry and orthodontics, as well as anthopometry, and aims at measurement of the vestibulo-oral sizes of crowns, crown prostheses and prepared and modelled crown stumps. Two parallel straight lines are drawn on a tooth contour through "key points": one - through a point marking a central sulcus on the tooth contour, another one - directly through two points which are either apexes, or mesial/distal crests of bearing and protective cusps. It is followed by the geometrical constructions of straight lines perpendicular to the first two straight lines and passing through "key points" or tangentially to the tooth contours. The segments found between the constructed perpendicular straight lines are measured. The vestibulo-oral sizes of teeth, bearing and protective cusps, internal and external inclinations are measured; intensity of a relief and macrostructural changes of an anatomic occlusal tooth surface. Then the measured parameters are correlated.

EFFECT: method allows providing higher accuracy of preparation, controlling the tooth sizes and the relief intensity ensured by measuring tooth components and by correlating the measured parameters.

6 dwg, 4 ex