Does the center of resistance depend on the direction of tooth movement?

Introduction: The objective of this study was to compare the locations of the centers of resistance (CRes) in the buccolingual (BL) and mesiodistal (MD) directions of the mandibular central incisors of 6 dogs.

Methods: Based on microcomputed tomography images of the teeth and their supporting tissues, solid models were used to build finite element models.

Results: The CRes locations for the 6 specimens were determined for displacements in the BL and MD directions with finite element calculations.