18 24

Cited 0 times in

Bimaxillary Total Arch Intrusion in Lingual Orthodontics for Hyperdivergent Class II Face with Asymmetry and Lip Protrusion

Authors
 Ung Ki Cho  ;  Hui-Joo Seo  ;  Byeong-Tak Keum  ;  Kee-Joon Lee 
Citation
 Korean Journal of Lingual Orthodontics (대한설측교정학회지), Vol.9(1) : 6-13, 2020-12 
Journal Title
 Korean Journal of Lingual Orthodontics (대한설측교정학회지) 
ISSN
 2287-7290 
Issue Date
2020-12
Keywords
Gummy smile ; Lip incompetency ; Total arch intrusion ; Anterior torque control
Abstract
Hyperdivergent Class II face is accompanied by a convex profile, while it is usually characterized by upright upper and/ or lower incisors. Thus, it is important to precisely maintain an axis of upper incisors during retraction. Particularly, axis control of upper incisors is more difficult in lingual orthodontics. Unlike in the buccal appliance, traction force pushes the wire out of horizontal slot in the lingual appliance, so sufficient moment for torque control of incisors may not be obtained. Therefore, excessive overtorque should be placed on the archwire for making same amount of moment and accomplishing incisor translation. Furthermore, to correct lip protrusion and lip incompetency in this patient, bimaxillary total arch intrusion and maximum retraction of incisors was also treatment objective to improve soft tissue problems. This case report demonstrates satisfactory results through bimaxillary total arch intrusion with translation of upper incisors and intrusion of lower incisors using palatal/lingual miniscrews and continuous arch with additional torque for axis control of incisors in lingual orthodontics.
Files in This Item:
T202005627.pdf Download
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Orthodontics (교정과학교실) > 1. Journal Papers
Yonsei Authors
Lee, Kee Joon(이기준) ORCID logo https://orcid.org/0000-0002-0782-3128
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/181401
사서에게 알리기
  feedback

qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse

Links