Abstract
The ectopic eruption of the maxillary canine is often observed in pediatric dentistry. However, hardly any cases of the transposition of the maxillary canine can be found. We treated a case of the transposition of the maxillary left canine that was dislocated to the mesial side of the maxillary left first molar. The patient was an 11-year-old girl, who came for examination concerning the ectopic eruption of the maxillary left canine after this was pointed out in a school physical examination. Upon investigation, there was no indication of trauma of the teeth or disease in the entire body. The occlusion relation of first molar was Angle I on both sides. Also, an overjet of 4.0 mm and an overbite of 5.0 mm were found. The midline of the upper and lower jaw agreed. The patient did have crowding with an arch length discrepancy of the maxilla of -7.0 mm and that of the lower jaw of -11.2 mm in the mixed dentition analysis. The maxillary left canine was moved to the original position by using a multibracket appliance after the first premolar was extracted. The treatment ended in 3years and 5 months, and abnormal findings such as the root resorption could not be observed.
