アブストラクト(51巻2号:神奈川歯学)

神奈川歯学

Japanese

Title : II級不正咬合患者への機能的矯正装置による早期治療がもたらす側貌への効果
Subtitle : 原著
Authors : 野田美穂子, 小泉創, 河田俊嗣
Authors(kana) :
Organization : 神奈川歯科大学大学院歯学研究科口腔統合医療学講座歯科矯正学分野
Journal : 神奈川歯学
Volume : 51
Number : 2
Page : 96-100
Year/Month : 2016 / 12
Article : 原著
Publisher : 神奈川歯科大学学会
Abstract : 「緒言」矯正歯科治療において, 矯正歯科医師は咬合の改善を第一目標とすることが多い. 一方, 歯列矯正患者は咬合の改善に加えて, 審美的な改善も期待している. このような患者の高い2つの要求に応えるため, 矯正歯科医師は軟組織側貌に重点を置いた診断基準を用いてきた. 口唇の形態や位置は, 骨格変化や上下顎前歯の傾斜にも大きな影響を受ける. 土持は, 美醜は軟組織側貌を構成する鼻, 上口唇, 下口唇相互間のバランスとオトガイ部の明確な形成により決定されると報告している. 機能的, 審美的に調和のとれた軟組織側貌は, 鼻が前方位にあり, 鼻下点付込が均整のとれた曲線を持ち, 上下口唇のバランスがとれ, オトガイ部が明確に形成されている. 以前から機能的矯正装置を用いた第一期治療の効果については, 骨格や上下顎前歯の傾斜の観点からの報告がされている. 萩原らは機能的矯正装置をAngle II級1類不正咬合者に使用した場合の臨床効果について, 歯系では上顎前歯の舌側傾斜, 骨格系では下顎の前下方および下方への変化により, 前歯の被蓋の改善が行われていたと報告している.
Practice : 歯科学
Keywords : 側貌, 機能的, 早期治療

English

Title : The amelioration of profile through early treatment for class II malocclusion with functional orthodontic appliance
Subtitle :
Authors : Mihoko NODA, So KOIZUMI, Toshitsugu KAWATA
Authors(kana) :
Organization : Division of Orthodontics, Department of Oral Interdisciplinary Medicine, Graduate School of Dentistry, Kanagawa Dental University
Journal : Kanagawa Shigaku
Volume : 51
Number : 2
Page : 96-100
Year/Month : 2016 / 12
Article : Original article
Publisher : Kanagawa Odontological Society
Abstract : [Abstract] The aim of this study was to determine whether functional appliance treatment improves the attractiveness of Class II profiles. Twenty-four subjects with Angle Class II malocclusion were divided into two groups; subjects in group one were treated with a functional appliance (experimental group), while those in the other group were not treated (control group). The initial mean ages of the patients in the experimental and control groups were 8.2 +- 1.6 and 8.9 +- 0.5 years, respectively. The lateral profile images were replaced with profile lines and were evaluated using a 5-point Likert scale. The ANB, overjet, E-line, Z angle, and nasolabial angle were evaluated using cephalometric analysis. In the experimental group, the overjet, ANB, and E-line were significantly decreased after treatment, while the Z angle showed a significant increase compared with the values before treatment. A comparison between the control and experimental groups after treatment showed that the nasolabial angle was significantly increased, while the overjet and E-line were significantly decreased in the experimental group. After treatment, the attractiveness of the profiles in the experimental group showed significantly greater improvement than those in the control group. Therefore, early treatment using a functional appliance in Class II malocclusion patients may lead to skeletal improvement and more attractive profiles.
Practice : Dentistry
Keywords :