A Study of the Factors Concerned with Orthodontic Treatment Results

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  • 矯正治療成績の良否に影響を与える治療関連因子
  • Regarding Skeletal Class 2 Patients in the Growing Period
  • 顎顔面部の成長を伴う骨格性2級症例群について

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The purpose of this study was to investigate the relationship between treatment results and evaluation and influencing the attainment of individual normal occlusion.<BR>This time, we report the factors related to the results of skeletal class 2 after extraction or non-extraction treatment, which were excellent or poor.<BR>The subjects were 120 patients with upper protrusion visiting Showa University Dental Hospital, Department of Orthodontics. We measured the initial and finishing stages by lateral cephalometric points.<BR>The results were as follows : <BR>1. The factors considered for results in extraction cases were growth direction of the mandible (gonial angle), improvement of ANB, changing pattern for setting overjet and overbite, occlusal plane angle and palatal plane angle.<BR>2. The factors considered for results in extraction cases were growth direction of the mandible (gonial angle, mandibular plane angle), improvement of ANB, changing pattern for setting overjet and overbite and occlusal plane angle

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