Authors' response

We thank Drs Brezniak and Wasserstein for their interest in our study. Root resorption is a naturally occurring phenomenon,1 and even teeth that haven't been subjected to orthodontic forces may show some root resorption.2-4 There is, unfortunately, no method that can predict which patients are at risk of severe orthodontically induced inflammatory root resorption, and individual predisposition is a major etiologic factor. Patient-related factors and individual predisposition cannot be changed; however, clinicians can use caution and modify treatment procedures for certain patients.

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