Comparison of orthodontic root resorption of root-filled and vital teeth using micro-computed tomography.

Objective: To evaluate the difference in orthodontic root resorption between root-filled and vital teeth.

Material And Methods: Sixteen individuals who required bilateral premolar tooth extraction due to orthodontic treatment and had a previously root-filled premolar tooth on one side were included in the study. The experimental group consisted of root-filled premolar teeth, and the control group consisted of contralateral vital premolar teeth.