Method for making layered dental restorations

Procédé de fabrication de restaurations dentaires stratifiées

Abstract

Method for making a layered dental restoration, the method includes providing a solid structure (e.g., a die or a dental core, such as a fully sintered ceramic dental core) having a desired outer shape, and applying a first slurry to the solid structure to form a first free form layer on the solid structure. The method further include solidifying the first free form layer on the solid structure, and machining the solidified first free form layer to a desired shape to form a first article comprising the solid structure and a first shaped layer. The method can further include applying, solidifying, and machining a second layer in a similar way to form a second article comprising the solid structure, the first shaped layer, and a second shaped layer. The free form layers need not be exposed to a high temperature prior to being machined.
L'invention porte sur un procédé de fabrication d'une restauration dentaire stratifiée, le procédé comprenant l'utilisation d'une structure solide (par exemple un modèle unitaire ou un noyau dentaire, tel qu'un noyau dentaire en céramique complètement fritté) ayant la forme extérieure voulue, et l'application d'une première pâte sur la structure solide afin de former une première couche de forme libre sur la structure solide. Le procédé comprend en outre la solidification de la première couche de forme libre sur la structure solide, et l'usinage de la première couche de forme libre solidifiée selon la forme voulue afin de former un premier élément comportant la structure solide et une première couche façonnée. Le procédé peut comprendre en outre l'application, la solidification et l'usinage d'une seconde couche de manière similaire pour former un second élément comportant la structure solide, la première couche façonnée et une seconde couche façonnée. Il n'est pas nécessaire d'exposer les couches de forme libre à une température élevée avant l'usinage de celles-ci.

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