Main Instructor Hsin-Yi Lo
Department / Institution Division of Orthodontics, Veterans General Hospital,Taichung
Classification Case report
In this case ,we treated an 8-year-old girl with an labial inversely impacted right central incisor by closed-eruption technique at the beginning .After the tooth arrived at the muco-gingival junction ,we changed the method into open-eruption technique because it was difficult to rotate the incisor upside down with closed-eruption method. From the posttreatment radiograph examination ,the root dilaceration was noted and the root apex was touchable from the labial side. The pulp vitality need a long-term follow up or root canal treatment and apicoectomy be indicated.
After debonding, she was still in her late mixed dentition stage, so we gave her a fixed lingual type retainer. But ,due to the deep bite, the retainer failure after 3 days. And we found a rotational relapse in this case ,which was rarely seen in other study. Therefore, orthodontic retreatment and fixed-type retainer is needed for longterm stability.
Treatment of Labial Inversely Impacted Central Incisor and The Stability Outcome : A Case Repor