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KMID : 0361920220520050354
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Korean Journal of Orthodontics
2022 Volume.52 No. 5 p.354 ~ p.361
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A cone-beam computed tomography study on strategic uprighting of mandibular molars using a biocreative reverse curve system
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Kim Jae-Woo
Choi Jin-Young
Kim Min-Ji
Bin Xu
Kim Seong-Hun
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Abstract
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Objective: To analyze the overall treatment effects in terms of the amount of uprighting with changes in the three-dimensional positions of the mandibular posterior teeth after applying the biocreative reverse curve (BRC) system.
Methods: Thirty-four patients (mean age, 20.5 ± 8.56 years) were treated using the BRC system (mean period, 8.17 ± 2.19 months). Cone-beam computed tomography was performed before treatment and after treatment with the BRC system. The three-dimensional movement of each tooth was analyzed in the coordinate system at points on the crown and root apex. A paired t-test was used to analyze the treatment effects of the BRC system.
Results: The application of the BRC system spanning from the first premolar to the second molar resulted not only in buccal and distal uprighting, but also in increased buccal and distal tipping of the teeth. The premolars and the first molar were extruded, and the second molar was intruded.
Conclusions: When the BRC system is applied, simultaneous distal and buccal uprighting of the premolars and molars can be achieved bilaterally using a temporary skeletal anchorage device without unnecessary movement of the anterior teeth.
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KEYWORD
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Molar uprighting, Biocreative reverse curve, Miniplate, Computed tomography
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