Rapid maxillary expansion: Do banded teeth develop more external root resorption than non-banded anchorage teeth?

Objective: To compare external root resorption (ERR) when bands and wires are used as orthodontic anchorage during rapid maxillary expansion (RME).

Materials And Methods: Histologic analysis was performed on 108 sites from 18 maxillary first premolars and on 36 sites from six mandibular first premolars in nine subjects (mean age = 15.2 ± 1.