Manufacture of artificial teeth and crowns

Details Manufacture of artificial teeth and crowns Manufacture of artificial teeth and crowns

A - Human Necessities

61

C

A61C 13/08 (2006.01) A61C 5/10 (2006.01) A61C 13/00 (2006.01) A61C 13/09 (2006.01)

Patent

CA 2049326

A method for the manufacture of artificial teeth, either replacement of whole teeth or crowns, whereby a tooth is produced by machining from a layered block (20) of synthetic plastics materials, the layers (34, 36, 38, 40) being of predetermined carrying colour (hue), chro- ma, value and translucency to stimulate the pulp, den- tine and enamel layers in a real tooth, thereby providing an artificial tooth with the distribution and depth of co- lour of a real tooth. The process provides for varying the tooth colour by milling the tooth from a different section of the layered block to vary the thicknesses of the layers, at least at the labial, menial, distal and occlusal surfaces, so as to obtain a custom tooth matched very closely to a patient's real tooth colour and pattern. The invention permits the manufacture of an artificial tooth from mate- rials with a hardness closely matching that of a real tooth to provide similar wear properties.

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