Evaluation of dimensional changes of the nasolacrimal canal after rapid maxillary expansion: A cone-beam computed tomography study.

Objective: The aim of this study is to evaluate the nasolacrimal canal dimensionally and volumetrically after treatment in patients who underwent rapid maxillary expansion.

Materials And Methods: A total of 19 patients (12 females, 7 males) with maxillary transverse deficiency, who underwent rapid maxillary expansion were included in the study. Cone beam computed tomography images were analyzed to measure the volume, anteroposterior diameter, transverse diameter, length, and angle of the nasolacrimal duct before and after treatment.