System and method for positioning three-dimensional brackets on teeth
First Claim
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1. A method for positioning virtual brackets on a virtual representation of a patient'"'"'s teeth, the method comprising:
- receiving an electronic representation of the patient'"'"'s teeth;
outputting the virtual representation of the patient'"'"'s teeth to a display;
determining facial axis points of the patient'"'"'s teeth from the received electronic representation of the patient'"'"'s teeth;
determining a reference plane relative to the received electronic representation of the patient'"'"'s teeth for aligning virtual brackets on the virtual representation of the patient'"'"'s teeth;
outputting, with the display, the reference plane relative to the virtual representation of the patient'"'"'s teeth;
outputting, with the display, control points relative to the reference plane, wherein the control points are manipulable by a user for modifying the anatomic reference plane;
locating suitable sites for placement of virtual brackets on the virtual representation of the patient'"'"'s teeth based on at least the determined facial axis points of the patient'"'"'s teeth;
outputting, with the display, the virtual brackets on the virtual representation of the patient'"'"'s teeth in an initial position, the virtual brackets aligned on the virtual representation of the patient'"'"'s teeth according to the reference plane; and
manufacturing a dental template for positioning brackets on the patient'"'"'s teeth by outputting instructions for manufacturing the dental template, the dental template to facilitate positioning of real brackets on the patient'"'"'s teeth according to the placement of virtual brackets on the virtual representation of the patient'"'"'s teeth.
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Abstract
System and methods for positioning 3D virtual brackets on teeth for the precise positioning of conventional brackets and wire. Various reference features may be calculated for the teeth and used to calculate a position for the virtual bracket. Reference features that are calculated include curve of Spee, Andrew'"'"'s plane, and a facial axis of the clinical crown for the teeth.
200 Citations
20 Claims
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1. A method for positioning virtual brackets on a virtual representation of a patient'"'"'s teeth, the method comprising:
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receiving an electronic representation of the patient'"'"'s teeth; outputting the virtual representation of the patient'"'"'s teeth to a display; determining facial axis points of the patient'"'"'s teeth from the received electronic representation of the patient'"'"'s teeth; determining a reference plane relative to the received electronic representation of the patient'"'"'s teeth for aligning virtual brackets on the virtual representation of the patient'"'"'s teeth; outputting, with the display, the reference plane relative to the virtual representation of the patient'"'"'s teeth; outputting, with the display, control points relative to the reference plane, wherein the control points are manipulable by a user for modifying the anatomic reference plane; locating suitable sites for placement of virtual brackets on the virtual representation of the patient'"'"'s teeth based on at least the determined facial axis points of the patient'"'"'s teeth; outputting, with the display, the virtual brackets on the virtual representation of the patient'"'"'s teeth in an initial position, the virtual brackets aligned on the virtual representation of the patient'"'"'s teeth according to the reference plane; and manufacturing a dental template for positioning brackets on the patient'"'"'s teeth by outputting instructions for manufacturing the dental template, the dental template to facilitate positioning of real brackets on the patient'"'"'s teeth according to the placement of virtual brackets on the virtual representation of the patient'"'"'s teeth. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method comprising:
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receiving an electronic representation of the patient'"'"'s teeth; outputting the virtual representation of the patient'"'"'s teeth to a display; determining an anatomic reference plane relative to the received electronic representation of the patient'"'"'s teeth for aligning virtual brackets on the virtual representation of the patient'"'"'s teeth, the anatomic reference plane being defined in part by points on the patient'"'"'s teeth; displaying the anatomic reference plane to the display; displaying control points for modifying the anatomic reference plane; outputting, with the display, the virtual brackets on the virtual representation of the patient'"'"'s teeth, the outputted virtual brackets aligned on the virtual representation of the patient'"'"'s teeth according to the anatomic reference plane; finalizing positions of the virtual brackets on the virtual representation of the patient'"'"'s teeth; and manufacturing a dental template for positioning brackets on the patient'"'"'s teeth by outputting instructions for fabricating the dental template to facilitate positioning of real brackets on the patient'"'"'s teeth according to the finalized positions of the virtual brackets on the virtual representation of the patient'"'"'s teeth. - View Dependent Claims (17, 18)
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19. A system for positioning a virtual bracket on a virtual representation of
a patient'"'"'s tooth, the system comprising: -
a processor; and memory comprising program code that, when executed by the processor, causes the system to; receive an electronic representation of the patient'"'"'s tooth; output the virtual representation of the patient'"'"'s tooth to a display; determine a reference point of the patient'"'"'s tooth from the received electronic representation of the patient'"'"'s tooth; determine a reference plane relative to the received electronic representation of the patient'"'"'s tooth for aligning the virtual bracket on the virtual representation of the patient'"'"'s tooth; output the reference plane on the display; output control points for the reference plane on the display; receive a user input for modifying the reference plane via the control points; modify a shape of the reference plane based on the user input via the control points; locate a suitable site for placement of the virtual bracket on the virtual representation of the patient'"'"'s tooth based on at least the determined reference point of the patient'"'"'s tooth; output, with the display, the virtual bracket on the virtual representation of the patient'"'"'s tooth, the outputted virtual bracket aligned on the virtual representation of the patient'"'"'s tooth based on at least the modified reference plane; finalize a position of the virtual bracket on the virtual representation of the patient'"'"'s tooth; and manufacture a dental template for positioning brackets on the patient'"'"'s teeth by outputting instructions for fabricating the dental template to facilitate positioning of a real bracket on the patient'"'"'s tooth according to the finalized position of the virtual bracket on the virtual representation of the patient'"'"'s tooth. - View Dependent Claims (20)
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Specification