Re: Root resorption diagnosed with cone beam computed tomography after 6?months of orthodontic treatment with fixed appliance and the relation to risk factors. Angle Orthod. 2012;82:196-201). By Dimitrios Makedonas, Henrik Lund, Kerstin Grondahl, Ken Hansen.

摘要

I read the important article published by Dimitrios Makedonas et al. with great interest. Congratulations on the authors' research achievements. It gives me a deep impression, especially the relationship between first phase of the orthodontic treatment and root resorption. It shows that the radiographic examination of 96% patients does not reveal the clinical significance of root resorption. But I have found myself puzzled by the following four questions. I hope the authors could give me some enlightenment.