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A comparative evaluation of different compensating cureves in the lingual and labial techniques using 3D FEM

Authors
 Sang Jin Sung  ;  Hyoung Seon Baik  ;  Young Soo Cho  ;  Hyung Seog Yu  ;  Yoon Shik Moon 
Citation
 AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS, Vol.123(4) : 441-450, 2003 
Journal Title
AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS
ISSN
 0889-5406 
Issue Date
2003
MeSH
Adult ; Alveolar Process/physiology ; Bicuspid/physiology ; Computer Simulation ; Cuspid/physiology ; Dental Arch/physiology ; Finite Element Analysis* ; Humans ; Incisor/physiology ; Models, Biological ; Molar/physiology ; Orthodontic Brackets ; Orthodontic Wires ; Periodontal Ligament/physiology ; Rotation ; Stainless Steel ; Stress, Mechanical ; Tooth Movement Techniques/instrumentation ; Tooth Movement Techniques/methods* ; Tooth Root/physiology
Keywords
12695772
Abstract
Because adults dislike the visibility of orthodontic appliances, the use of the lingual orthodontic technique has increased over time. But few studies compare tooth movement of the lingual technique with that of the labial technique. In this study, human mandibular left teeth were aligned, and a 3-dimensional finite element model was made (consisting of 19382 nodes and 12150 elements). To compare the effect of compensating curves on canine retraction between the lingual and the labial orthodontic techniques, the compensating curve was increased on the.016-in stainless steel labial or lingual archwire, and a 150-g force was applied distally on the canine. The relative direction and the amount of tooth displacement of the finite element model were compared on a schematic displacement graph (magnified 10,000 times), and the compressive stress distributed on the root surface was observed. The pattern of tooth movement (with or without a compensating curve) was different between the labial and the lingual techniques. As the amount of compensating curve increased (0, 2, and 4 mm) in the archwire, the rotation and the distal tipping of the canine was reduced. The antitip and antirotation action of compensating curve on the canine retraction was greater in the labial archwire than in the lingual archwire.
Full Text
http://www.sciencedirect.com/science/article/pii/S0889540602569298
DOI
10.1067/mod.2003.9
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Orthodontics (교정과학교실) > 1. Journal Papers
Yonsei Authors
Baik, Hyoung Seon(백형선)
Yu, Hyung Seog(유형석) ORCID logo https://orcid.org/0000-0002-1275-5078
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/113503
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