IP Library Granted Patent US 11,751,981
Granted Patent B2
US 11,751,981 · App. 16/352,320 · Granted Sep 12, 2023

Dynamic virtual articulator for simulating occlusion of teeth

Inventors: Rune Fisker (Virum, DK); Christophe Vasiljev Barthe (Copenhagen N., DK); Kasper Kabell Kristensen (Vanlose, DK); Tommy Sanddal Poulsen (Allerod, DK)
Assignee: 3SHAPE A/S
A61C11/00A61C13/0004A61C19/05A61C9/0053A61C9/0086A61C19/045G16H20/40
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Quick Facts
Patent No.
US 11,751,981
App. No.
16/352,320
Granted
Sep 12, 2023
Kind
B2
Abstract

Disclosed is a computer-implemented method of using a dynamic virtual articulator for simulating occlusion of teeth, when performing computer-aided designing of one or more dental restorations for a patient, where the method includes the steps of: providing the virtual articulator including a virtual three-dimensional model of the upper jaw and a virtual three-dimensional model of the lower jaw resembling the upper jaw and lower jaw, respectively, of the patient's mouth; providing movement of the virtual upper jaw and the virtual lower jaw relative to each other for simulating dynamic occlusion, whereby collisions between teeth in the virtual upper and virtual lower jaw occur; wherein the method further includes: providing that the teeth in the virtual upper jaw and virtual lower jaw are blocked from penetrating each other's virtual surfaces in the collisions.

Claims (23)

1. A computer-implemented method for digitally designing a dental restoration, comprising:

obtaining a digital 3D representation of at least a part of an upper or lower jaw of a patient, representing at least a target site for placing the restoration and at least one antagonist tooth opposing the target site, wherein the digital 3D representation is from intraoral scanning of teeth or scanning a physical model of teeth, wherein one or more reference spheres or objects are fixed to the teeth,

performing a dynamic occlusion simulation by simulating movement of the digital 3D representation of the at least a part of an upper or lower jaw of the patient to cause one or more collisions between the target site and the at least one antagonist tooth,

detecting the one or more collisions to generate a dynamic occlusion comprising one or more collision points, each collision point based on each collision of the one or more collisions,

digitally designing, with a computer program product, a digital anatomy design of the restoration based at least on the dynamic occlusion and a relative offset of the planned restoration position, wherein the relative offset is provided by offsetting the target site vertically relative to the jaw, and

displaying the digital anatomy design of the restoration on a graphical user interface.

2. A computer-implemented method for digitally designing a dental restoration, comprising:

obtaining a digital 3D representation of at least a part of an upper or lower jaw of a patient, representing at least a target site for placing the restoration, wherein the digital 3D representation is from intraoral scanning of teeth or scanning a physical model of teeth,

wherein one or more reference spheres or objects are fixed to the teeth,

performing a dynamic occlusion simulation by simulating movement of the digital 3D representation of the at least a part of an upper or lower jaw of the patient to cause one or more collisions between the target site and the at least one antagonist tooth,

detecting the one or more collisions to generate a dynamic occlusion comprising one or more collision points, each collision point based on each collision of the one or more collisions,

digitally designing, with a computer program product, a digital anatomy design of the restoration based at least on the dynamic occlusion and a relative offset of the planned restoration position, wherein the relative offset of the planned restoration position includes vertically displacing a prepared tooth in the planned restoration position, and

displaying the digital anatomy design of the restoration on a graphical user interface.

3. The method according to claim 2 , wherein the dynamic occlusion is between the upper and lower jaw of the patient.

4. The method according to claim 3 , wherein the relative offset of the planned restoration position includes displacing a prepared tooth in the planned restoration position.

5. A computer-implemented method for digitally designing a dental restoration, comprising:

obtaining a digital 3D representation of at least a part of an upper and lower jaw of a patient, including at least a target site for placing the restoration, wherein the digital 3D representation is from intraoral scanning of teeth or scanning a physical model of teeth,

wherein one or more reference spheres or objects are fixed to the teeth,

performing a dynamic occlusion simulation by simulating movement of the digital 3D representation of the at least a part of an upper and lower jaw of the patient to cause one or more collisions between the target site and the at least one antagonist tooth,

detecting the one or more collisions to generate a dynamic occlusion comprising one or more collision points, each collision point based on each collision of the one or more collisions,

digitally designing, with a computer program product, providing a digital anatomy design of the restoration based at least on the dynamic occlusion between the upper and lower jaw of the patient and a relative displacement of the planned restoration position,

wherein the relative displacement of the planned restoration position includes vertically displacing a prepared tooth in the planned restoration position, and

displaying the digital anatomy design of the restoration on a graphical user interface.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 13, 2019
From: FISKER, RUNE; BARTHE, CHRISTOPHE VASILJEV; KRISTENSEN, KASPER KABEL; POULSEN, TOMMY SANDDAL
To: 3SHAPE A/S
Reel/Frame 048588/0137 →
Priority Claims (3)
DK PA 2010 00156 · Feb 25, 2010 · national
DK PA 2010 00425 · May 14, 2010 · national
DK PA 2010 00835 · Sep 17, 2010 · national
Continuity (6)
Continuation 16229373 · Dec 21, 2018
Continuation 13580876
Provisional Application 61383840 · Sep 17, 2010
Provisional Application 61334681 · May 14, 2010
Provisional Application 61307934 · Feb 25, 2010
Related Publication 20190216580A1 · Jul 18, 2019
Cited By (1)
US 12,688,795