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US 2020/0197140 A1Published application
Dental Multi-Colored Milling Blank
AssigneeIvoclar Vivadent AG
InventorsKonrad Hagenbuch, Clemens Andreas Häfele, Karl Lanbacher
Life of this patent
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Abstract
A dental multi-colored milling blank having at least two layers (16), a transition zone, where material from both layers is present. In the transition zone, a transition geometry exists that extends three-dimensionally. The transition geometry comprises round surfaces facing towards both directions of extension of the layers.
Claims16
A dental multi-colored milling blank comprising
- at least two layers of materials having different color and/or brightness which are adjacent to each other and are firmly bonded to each other,
- wherein a transition zone (22) exists therebetween across at least a part of an extent of the at least two layers and comprises both a material of a first layer and a material of a second layer, and at least one transition geometry (32) of the layers extending three-dimensionally in the transition zone (22),
- wherein the transition geometry (32) comprises round surfaces (30) which are adjoined by slopes (36) obliquely facing towards both directions of extension (24, 26) of the layers.
A dental multi-colored restoration part made by additive manufacturing, comprising
- at least two layers which include materials of different color and/or brightness which adjoin each other and are firmly connected to each other by being joined together,
- wherein a transition zone (22) exists therebetween across at least part of the extent of the at least two layers and comprises both a material of a first layer and a material of a second layer, and a transition geometry (32) of the at least two layers extending three-dimensionally in the transition zone (22),
- wherein the transition geometry (32) comprises round surfaces (30) which are adjoined by slopes (36) obliquely facing towards both directions (24, 26) of extension of the layers.
Dependencies are inferred from the claim text.