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KMID : 0361920100400010050
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Korean Journal of Orthodontics
2010 Volume.40 No. 1 p.50 ~ p.60
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The frog appliance for upper molar distalization
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Mehmet Bayram
Metin Nur
Dogan Kilkis
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Abstract
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The purpose of this article was to evaluate the effects of a new upper molar distalization system, the Frog Appliance, on dentofacial structures in a Class II, division 1 patient. An 11-year-old girl was referred to our clinic for orthodontic treatment. She had a mild skeletal Class II malocclusion with Class II molar and canine relationship on both sides. The treatment plan included distalization of the upper first molars bilaterally followed by full fixed appliance therapy. For the upper molar distalization, a new system, the Frog Appliance, was constructed and applied. Lateral cephalometric radiographs were used to evaluate the treatment results. Distalization of the upper first molars was achieved in four months successfully, and Class I molar relationship was obtained. Total treatment time was 16 months. According to the results of the cephalometric evaluation, a nearly bodily distal molar movement with a slight anchorage loss was attained.
In conclusion, the Frog Appliance was found to be a simple, effective, non-invasive, and compliance-free intraoral distalization appliance for achieving bilateral molar distalization.
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KEYWORD
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Distalizing, Class II, Anchorage, Appliances
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