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KMID : 1149720220120040325
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Clinical Journal of Korean association of Orthodontists
2022 Volume.12 No. 4 p.325 ~ p.334
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Correction of Skeletal Class II Open Bite Treated by Miniscrew Anchorage: A Case Report
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Lee Joo-Yeong
Lee Jin-Woo
Chung Dong-Hwa
Lee Sang-Min
Lee Mo-Hyeon
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Abstract
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A case report of a Class II malocclusion with an anterior open bite and vertical maxillary excess was presented. A 14-year-old female patient had a tongue thrusting habit, mouth breathing and centric occlusion (CO)-maximal intercuspal position (MIP) discrepancy with condylar anterior displacement. Mini-implants were used to intrude and retract the maxillary molars. Myofunctional therapy was actively instructed to the patient after obtaining positive overbite. After 34-month of overall treatment, open bite was improved with condylar repositioning and minimal CO-MIP discrepancy. To minimize the relapse, especially during the first year after treatment, interradicular mini-implants were remained and the patient was instructed to actively use retainers.
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KEYWORD
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Open bite, Mini-implant, Skeletal Class II, Relapse
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