2021 Volume 59 Issue 3 Pages 131-139
We experienced a case in which the left maxillary canine tooth had an eruption disturbance due to odontoma. During a dental health examination for 3-year-olds, the patient was told that the left maxillary deciduous canine had not erupted, and so she visited a local dental clinic. At 4 years 0 months of age, she was referred to our department. A panoramic X-ray had been taken by a local dental clinic at 4 years 0 months of age. An impacted maxillary left deciduous canine and an opaque image near the cusp were observed. At 4 years 2 months of age, Specimen 1 (odontoma) and Specimen 2 (cyst) were removed under general anesthesia, and traction of the left maxillary canine was started. As a result of histopathological examination, Specimen 1 was diagnosed as a complex odontoma and Specimen 2 as a compound odontoma. A lingual arch with a hook and FM Super Thread® were used for traction. Eleven months after the start of traction, the appliance was removed because guidance into the dentition was observed. After removal, follow-up was performed at 1-month intervals. At 5 years 4 months of age, external resorption of the maxillary left deciduous canine root due to premature contact was observed. An occlusal adjustment was made to prevent premature contact. After the occlusal adjustment, there was no rapid progression of external resorption, but it fell out at 7 years 4 months of age. At 9 years 1 month of age, the maxillary left canine began to erupt. The maxillary left canine erupted in the lower position on the labial side. It is considered necessary to continue occlusal guidance.
