We want to thank the authors for assessing whether maxillary canine position influences esthetic perceptions (Katsis J, Behrents RG, Araujo EA, Oliver DR, Kim KB. Posttreatment evaluation of maxillary canine positions in 15-year-old subjects. Am J Orthod Dentofacial Orthop 2016;149:481-90). However, a few questions arose regarding the CBCT scans. The authors included patients who had a posttreatment CBCT scan; however, they did not describe why the patients needed it after treatment. Also, we want to know why patients did not have a CBCT scan before treatment.

In this study, no considerations were given to the manner in which the subjects in the experimental sample were treated. This sample comprised subjects with complete dentitions as well as those with extractions for orthodontic purposes. However, the control group included only full-dentition subjects; the baseline was not the same.

Also, we do not know why the authors only included 15-year-old patients. It is better to include adults because teenagers still have great potential for growth.

Since the results of this article are promising, I would appreciate it if the authors could share their views.