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SYSTEM AND METHOD FOR DETECTING DEVIATIONS DURING THE COURSE OF AN ORTHODONTIC TREATMENT TO GRADUALLY REPOSITION TEETH

  • US 20080305451A1
  • Filed: 06/08/2007
  • Published: 12/11/2008
  • Est. Priority Date: 06/08/2007
  • Status: Active Grant
First Claim
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1. A method for detecting deviation during an orthodontic treatment plan, the method comprising the steps of:

  • receiving an un-segmented current teeth image representing a patient'"'"'s teeth after an orthodontic treatment plan has begun and before the orthodontic treatment plan ends for the patient;

    pre-processing the current teeth image;

    comparing the current teeth image with a previously segmented teeth model for an initial match;

    performing a surface matching step between the current teeth image and the previously segmented teeth model, if an initial match occurs; and

    adjusting a position of a tooth in the previously segmented teeth model to a corrected stage if an error generated after the surface matching step is within a programmable threshold parameter value.

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