Methods of making multi-chromatic dental appliances

US8973268B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8973268-B2
Application numberUS-201113696632-A
CountryUS
Kind codeB2
Filing dateJun 6, 2011
Priority dateJun 17, 2010
Publication dateMar 10, 2015
Grant dateMar 10, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

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A method of making a multi-chromatic dental appliance. A first article can be formed of a first material based on a first digital surface representation having a desired outer shape of the dental appliance. A portion of the first article can then be removed to form an outer layer of the dental appliance comprising a cavity dimensioned to accommodate an inner layer. A second article can be formed by filling the cavity of the first article with a second material. The second material can have at least one different optical property than the first material. The second article can be further processed, as desired. For example, a desired inner shape of the dental appliance can be formed in the second article. Such a desired inner shape can be based on a second digital surface representation of a dental object configured to receive the dental appliance.

First claim

Opening claim text (preview).

What is claimed is: 1. A method of making a dental appliance, the method comprising: providing a first digital surface representation of a desired outer shape of a dental appliance; forming a first article of a first material having the desired outer shape based on the first digital surface representation; removing an inner portion of the first article to form an outer layer of the dental appliance comprising a cavity dimensioned to accommodate an inner layer; and forming a…

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What does patent US8973268B2 cover?
A method of making a multi-chromatic dental appliance. A first article can be formed of a first material based on a first digital surface representation having a desired outer shape of the dental appliance. A portion of the first article can then be removed to form an outer layer of the dental appliance comprising a cavity dimensioned to accommodate an inner layer. A second article can be forme…
Who is the assignee on this patent?
Johnson Ryan E, Karim Naimul, 3M Innovative Properties Co
What technology area does this patent fall under?
Primary CPC classification A61C3/00. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue Mar 10 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).