Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 812-826 |
| Number of pages | 15 |
| Journal | Angle Orthodontist |
| Volume | 89 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2019 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Orthodontics
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A 15-year follow up of an orthodontic treatment including a lower incisor extraction and keeping the maxillary canine-premolar transposition. / Hwang, Soonshin; Kim, Insil; Jang, Woowon; Choi, Yoon Jeong; Chung, Chooryung J.; Kim, Kyung Ho.
In: Angle Orthodontist, Vol. 89, No. 5, 01.01.2019, p. 812-826.Research output: Contribution to journal › Article
TY - JOUR
T1 - A 15-year follow up of an orthodontic treatment including a lower incisor extraction and keeping the maxillary canine-premolar transposition
AU - Hwang, Soonshin
AU - Kim, Insil
AU - Jang, Woowon
AU - Choi, Yoon Jeong
AU - Chung, Chooryung J.
AU - Kim, Kyung Ho
PY - 2019/1/1
Y1 - 2019/1/1
N2 - 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.
AB - 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.
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UR - http://www.scopus.com/inward/citedby.url?scp=85071439168&partnerID=8YFLogxK
U2 - 10.2319/020118-93.1
DO - 10.2319/020118-93.1
M3 - Article
C2 - 30080123
AN - SCOPUS:85071439168
VL - 89
SP - 812
EP - 826
JO - Angle Orthodontist
JF - Angle Orthodontist
SN - 0003-3219
IS - 5
ER -