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KMID : 0361920140440030143
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Korean Journal of Orthodontics
2014 Volume.44 No. 3 p.143 ~ p.153
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Functional evaluation of orthopedic and orthodontic treatment in a patient with unilateral posterior crossbite and facial asymmetry
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Kwak Yoon-Young
Jang In-San
Choi Dong-Soon
Cha Bong-Kuen
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Abstract
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An 8-years old boy with facial asymmetry and unilateral posterior crossbite on the left side received orthopedic and orthodontic treatment. During the first phase of treatment, the narrow maxillary arch was expanded using an acrylic plate. Then, the acrylic plate was used as a bite block with occlusal indentations from the construction bite that was obtained with the incisors in a coincident dental midline. After the position of the mandible was stabilized, the second phase of orthodontic treatment was initiated using fixed appliances for detailing of the occlusion. Skeletal symmetry, ideal occlusion, and coincident dental midlines were thus achieved. Functionally, occlusal force balance and masticatory muscle activity were improved, and the chewing patterns were normalized.
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KEYWORD
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Facial asymmetry, Chewing cycle, Electromyography, Maxillary expansion, Orthopedic treatment, Posterior crossbite
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