Detecting tooth shade
Assignee3Shape A/S
InventorsBo Esbech, Rune Fisker, Lars Henriksen, Tais Clausen
Life of this patent
Estimating the term…
Abstract
Disclosed in a method, a user interface and a system for use in determining shade of a patient's tooth, wherein a digital 3D representation including shape data and texture data for the tooth is obtained. A tooth shade value for at least one point on the tooth is determined based on the texture data of the corresponding point of the digital 3D representation and on known texture values of one or more reference tooth shade values.
Claims27
A system for determining shade of a tooth, wherein the system comprises:
- a computer device including a non-transitory computer readable medium and at least one processor,
- an intraoral scanner configured to provide scan data,
- wherein the at least one processor is configured to:
- obtain a digital 3D representation of the tooth based on the scan data, the digital 3D representation including shape data and texture data for the tooth;
- determine a tooth shade value for at least one point on the tooth based on the texture data of a corresponding digital point of the digital 3D representation and on one or more reference tooth shade values;
- and
- derive a certainty score indicative of a certainty of the determined tooth shade value.
A system for determining shade of a tooth, the system comprising:
- a computer device including a non-transitory computer readable medium and at least one processor,
- an intraoral scanner configured to provide scan data, and
- wherein the at least one processor is configured to:
- obtain a digital 3D representation of the tooth including shape data and texture data for the tooth;
- determine a tooth shade value for at least one point on the tooth based on the texture data of a corresponding digital point of the digital 3D representation and on one or more reference tooth shade values;
- and
- create a tooth shade profile for the tooth from at least one tooth shade value,
- wherein the tooth shade profile includes a one or more tooth shade regions on the tooth each having an average tooth shade based at least in part on tooth shade values for a set of points within the tooth shade region.
A system for determining shade of a tooth, wherein the system comprises:
- a computer device including a non-transitory computer readable medium and at least one processor,
- an intraoral scanner configured to:
- record a series of sub-scans of the tooth,
- wherein at least one sub-scan of the series of sub-scans includes shape data and texture data for the tooth,
- provide the series of sub-scans to the at least one processor, and
- wherein the at least one processor is configured to:
- generate a digital 3D representation of the tooth from the series of sub-scans;
- and
- determine a tooth shade value for at least one point on the tooth based on the texture data of a corresponding digital point of the digital 3D representation and on one or more reference tooth shade values.
A system for determining shade of a tooth, wherein the system comprises:
- a computer device including a non-transitory computer readable medium and at least one processor,
- a visual display unit,
- an intraoral scanner configured to provide scan data, and
- wherein the at least one processor is configured to:
- obtain a digital 3D representation of the tooth based at least in part on the scan data including shape data and texture data for the tooth,
- store the digital 3D representation in the non-transitory computer readable medium,
- determine a tooth shade value for at least one point on the tooth based on the texture data of the corresponding point of the digital 3D representation and on one or more reference tooth shade values,
- derive an indicator representing the reliability of the tooth shade value, and
- instruct the visual display unit to display the indicator next to the tooth shade value.
Dependencies are inferred from the claim text.