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Absolute anchorage with universal T-loop mechanics for severe deepbite and maxillary anterior protrusion and its 10-year stability.

Authors
 Yoon Jeong Choi  ;  Chooryung Judi Chung  ;  Kwangchul Choy  ;  Kyung-Ho Kim 
Citation
 ANGLE ORTHODONTIST, Vol.80(4) : 771-782, 2010 
Journal Title
ANGLE ORTHODONTIST
ISSN
 0003-3219 
Issue Date
2010
MeSH
Anodontia/complications ; Cephalometry ; Extraoral Traction Appliances ; Female ; Humans ; Incisor/physiology* ; Malocclusion/complications ; Malocclusion/therapy* ; Orthodontic Anchorage Procedures/instrumentation* ; Orthodontic Space Closure* ; Orthodontic Wires* ; Secondary Prevention ; Tooth Extraction ; Young Adult
Keywords
T-loop mechanics ; Deepbite ; Protrusion ; Stability ; Absolute anchorage ; Congenital missing
Abstract
An adult patient with severe maxillary protrusion and deepbite who was congenitally missing two mandibular incisors was treated successfully by maximum retraction of the maxillary anterior teeth after extraction of the maxillary first premolars using a moment differential between the anterior and posterior segments created by a universal T-loop. Anterior teeth were moved with controlled tipping, and little anchorage loss of the posterior segments was experienced using the universal T-loop spring. Reduction of overbite was performed by absolute intrusion of both maxillary and mandibular anterior teeth. With retraction of the maxillary anterior teeth and recontouring of the mandibular canines, proper overjet and overbite were achieved. This report shows the 10-year stability of the case treated with the universal T-loop for the first time.
Full Text
http://www.angle.org/doi/abs/10.2319/052809-304.1
DOI
10.2319/052809-304.1
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Orthodontics (교정과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Kyung Ho(김경호) ORCID logo https://orcid.org/0000-0002-8154-2041
Chung, Chooryung J.(정주령) ORCID logo https://orcid.org/0000-0001-9399-7193
Choy, Kwang Chul(최광철)
Choi, Yoon Jeong(최윤정) ORCID logo https://orcid.org/0000-0003-0781-8836
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/101073
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