A 15-year follow up of an orthodontic treatment including a lower incisor extraction and keeping the maxillary canine-premolar transposition
| Autor: | Yoon Jeong Choi, Kyung Ho Kim, Insil Kim, Soonshin Hwang, Woowon Jang, Chooryung J. Chung |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Molar
Cuspid Adolescent Facial profile Orthodontics Case Report 03 medical and health sciences 0302 clinical medicine stomatognathic system Occlusion Premolar medicine Humans Bicuspid 030212 general & internal medicine Gingival recession Retainer business.industry Maxillary canine 030206 dentistry Lower incisor Incisor stomatognathic diseases medicine.anatomical_structure medicine.symptom business Orthodontic Retainers Follow-Up Studies |
| Zdroj: | Angle Orthod |
| ISSN: | 1945-7103 |
| Popis: | Lower incisor extraction is an effective option for treating lower anterior crowding in patients with a good facial profile, Class I molar occlusion, and narrow upper incisors. This report describes the successful treatment of an adolescent patient with lower anterior crowding and a transposed maxillary canine and premolar treated by extracting a lower incisor and keeping the transposed positions of the teeth. With the use of retainers, treatment results were stable up to the 2-year postretention visit. However, upon a 15-year postretention appointment, the fixed retainer had been removed and the removable retainer was no longer in use, which resulted in relapse of lower anterior alignment. Moreover, the transposed canine had extruded during this period, causing occlusal interference and gingival recession, as well as loss of tooth vitality, which indicates the importance of maintaining orthodontic retainers for long-term stable occlusion. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|