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http://dx.doi.org/10.4041/kjod.2009.39.1.43

Three dimensional analysis of tooth movement using different sizes of NiTi wire on NiTi scissors-bite corrector  

Jeon, Hyun-Ju (Division of Orthodontics, Department of Dentistry, Ewha Womans University Mokdong Hospital)
Park, Sun-Hyung (Division of Orthodontics, Department of Dentistry, School of Medicine, Ewha Womans University)
Jung, Sang-Hyuk (Department of Preventive Medicine, School of Medicine, Ewha Womans University)
Chun, Youn-Sic (Division of Orthodontics, Department of Dentistry, School of Medicine, Ewha Womans University)
Publication Information
The korean journal of orthodontics / v.39, no.1, 2009 , pp. 43-53 More about this Journal
Abstract
Objective: The purpose of this study was to compare the difference in three dimensional tooth movement using three different wire sizes($0.018{\times}0.025-in,\;0.016{\times}0.022-in$ 0.016-in) on a NiTi scissors-bite corrector. Methods: Computed tomography(CT) images of the experimental model before and after tooth movement were taken and reconstructed into three dimensional models for superimposition. The direction and the amount of tooth movement were measured and analyzed statistically. Results: The lingual and intrusive movements of the crown of the maxillary second molar were increased as the size of the NiTi wire increased. The roots of the maxillary second metals moved buccally except for the 0.016-in group. The intrusive movement of the roots of the maxillary second molars was increased as the size of the NiTi wire increased. Due to the use of orthodontic mini-implants, anchorage loss was under 0.2 mm on average. Conclusions: The $0.018{\times}0.025-in$ NiTi wire was most effective in lingual and intrusive movement of the maxillary second molar which was in scissors-bite position. Indirect skeletal anchorage with a single orthodontic mini-implant was rigid enough to prevent anchorage loss.
Keywords
Scissors-bite; NiTi scissors-bite corrector; Calorific machine; Indirect skeletal anchorage;
Citations & Related Records
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Times Cited By Web Of Science : 1  (Related Records In Web of Science)
Times Cited By SCOPUS : 1
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