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Quantification of root resorption using CBCT :
An individual tooth was manually segmented from digital models taken at two different times. The “before” vs. “after” morphology (root length, root volume, and surface area) of the tooth was compared and quantified. The information was used to compute root resorption, a serious iatrogenic side-effect of orthodontics. Development of automatic segmentation algorithms and quantification of root resorption by overlapping the crown and comparing the root are major goals.

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