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

Title
 Distalization pattern of the maxillary arch depending on the number of orthodontic miniscrews
Authors
 Till E. Bechtold; Jin-Wook Kim; Kee-Joon Lee; Young-Chel Park; Tae-Hyun Choi
Issue Date
2013
Journal Title
 Angle Orthodontist
ISSN
 0003-3219
Citation
 Angle Orthodontist, Vol.83(2) : 266~273, 2013
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
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/86594
DOI
10.2319/032212-123.1
Appears in Collections:
1. 연구논문 > 2. College of Dentistry > Dept. of Orthodontics
Yonsei Authors
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Link
 http://www.angle.org/doi/full/10.2319/032212-123.1
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