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Cephalometric Evaluation of the Dental and Skeletal Effects with Activator Treatment

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題名:Cephalometric Evaluation of the Dental and Skeletal Effects with Activator Treatment

作者:蔡吉陽

Lin L-H; Chen C-S; Cheng C-F; Tsai C-Y; Cheng H-C 貢獻者:牙醫學系

上傳時間:2009-11-23

摘要:A study was conducted to ascertain dental effects of step-wise mandibular advancement with Bionator therapy. A sample of 24 girls in the age group of 9 to 12 years having Class II Division 1 malocclusion was well matched for age, severity of malocclusion and craniofacial

morphology. The sample was divided into three groups. Eight girls underwent step-wise mandibular advancement in three stages, while eight were treated with single step advancement. Eight girls acted as control who did not undergo any treatment. The total

treatment/observation period was 9 months. The

cephalometric analysis revealed that the progressive mandibular advancement enhances favorable facio-skeletal changes, more so in the mandible. The sagittal

correction was predominantly of skeletal type with step-wise advancement, while with single step advancement it was due to both skeletal and dental changes.

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