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Distalization pattern of the maxillary arch depending on the number of orthodontic miniscrews

Authors
 Till E. Bechtold  ;  Jin-Wook Kim  ;  Tae-Hyun Choi  ;  Young-Chel Park  ;  Kee-Joon Lee 
Citation
 ANGLE ORTHODONTIST, Vol.83(2) : 266-273, 2013 
Journal Title
 ANGLE ORTHODONTIST 
ISSN
 0003-3219 
Issue Date
2013
MeSH
Adolescent ; Adult ; Bone Screws ; Cephalometry ; Dental Arch/pathology* ; Dental Stress Analysis* ; Female ; Humans ; Male ; Malocclusion, Angle Class II/pathology ; Malocclusion, Angle Class II/therapy* ; Maxilla ; Orthodontic Anchorage Procedures/instrumentation* ; Orthodontic Appliance Design ; Statistics, Nonparametric ; Tooth Movement Techniques/instrumentation* ; Young Adult
Keywords
Maxillary arch ; Class II ; Interradicular ; Miniscrew ; Distalization
Abstract
OBJECTIVE: To determine the effects of linear force vector(s) from interradicular miniscrews on the distalization pattern of the maxillary arch in adult Class II patients. MATERIALS AND METHODS: Twenty-five adult patients with mild to moderate Class II dentition and minimal crowding were collected. Either single (group A, n  =  12) or dual (group B, n  =  13) miniscrews were inserted on the posterior interradicular area to deliver a distalizing force to the main archwire. The displacement patterns of maxillary incisors and molars were measured and compared. RESULTS:   Significant distalization in the molars and incisors was shown in both groups. Significantly greater distalization and intrusion of the first molar and intrusive displacement of the incisor, together with significant reduction of the mandibular plane, were noted in group B, in contrast to the rotation of the occlusal plane in group A. CONCLUSIONS: Interradicular miniscrews predictably induced total arch distalization, leading to the correction of Class II. Additional miniscrews in the premolar area appear to facilitate intrusion and distalization of the entire arch according to the position of the force vectors
Full Text
http://www.angle.org/doi/full/10.2319/032212-123.1
DOI
10.2319/032212-123.1
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Orthodontics (교정과학교실) > 1. Journal Papers
Yonsei Authors
Park, Young Chel(박영철)
Lee, Kee Joon(이기준) ORCID logo https://orcid.org/0000-0002-0782-3128
Choi, Tae Hyun(최태현)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/86594
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