アブストラクト(58巻1号:神奈川歯学)

神奈川歯学

Japanese

Title : アクチバトールの新しい可動式説明模型の考案とその教育効果の研究
Subtitle : 原著
Authors : 窪田光慶1), 花岡孝治1), 山口徹太郎2), 菅谷彰1)
Authors(kana) :
Organization : 1)神奈川歯科大学総合歯学教育学講座歯学教育学分野, 2)神奈川歯科大学歯学部歯科矯正学講座歯科矯正学分野
Journal : 神奈川歯学
Volume : 58
Number : 1
Page : 36-47
Year/Month : 2023 / 6
Article : 原著
Publisher : 神奈川歯科大学学会
Abstract : 「緒言」 アクチバトールは, 1930年代にViggo AndresenとKarl Haupleによって発表された機能的矯正装置の一種であり, 1907年Robinのmonoblocが原型であるといわれている. 具体的には, 下顎の成長不全を伴った上顎前突症例に対して, 下顎の成長を促進することができる装置として使用されてきた. またアクチバトールは, 口呼吸患者や昼間の使用が可能なように小型化されたBionatorや頬筋や口輪筋を排除して側方や前方への拡大機能を有するFrankel's Functional regulatorとして, 多くの機能的矯正装置を派生し, 発展してきた. 日本においては高橋新次郎が1940年台に導入し, 本来上顎前突症例に使用していたものを, 下顎前突症例に応用できるように改良した. 今日においてもアクチバトールは主に混合歯列期に用いられるが, 乳歯列期, 永久歯列期においても用いられ, 機能性反対咬合, 上顎前突, 過蓋咬合, 交叉咬合, 保定装置などに広く適応されている.
Practice : 歯科学
Keywords : アクチバトール, 歯科矯正学, 教育教材, 歯学部教育

English

Title : Study on the new movable explanatory models of the activator and its educational efficacy
Subtitle :
Authors : Mitsuyoshi KUBOTA1), Koji HANAOKA1), Tetsutaro YAMAGUCHI2), Akira SUGAYA1)
Authors(kana) :
Organization : 1)Dental Education Institute, Liberal Arts/Dental Education Institute, Department of Dental Education, Kanagawa Dental University, 2)Department of Orthodontics, School of Dentistry, Kanagawa Dental University
Journal : Kanagawa Shigaku
Volume : 58
Number : 1
Page : 36-47
Year/Month : 2023 / 6
Article : Original article
Publisher : Kanagawa Odontological Society
Abstract : [Abstract] The activator is one of functional orthodontic appliance developed in the 1930s. It is an appliance used in cases of maxillary protrusion with inferior growth of the mandible to promote mandibular growth. It was introduced in Japan in the 1940s, and was modified to be applied to cases of a functional anterior cross bite. Even today, the activator is widely used for functional anterior cross bite in the mixed dentition stage because of its simple structure. Against this background, it is one of the contents that must be understood in undergraduate education. However, for students, it is one of the most difficult appliances to understand the significance and function of activator's guiding plane formation. The reason for this is that educational method using a conventional hard plaster model with non-movable anterior teeth makes it difficult to understand the significance of guiding plane formation. Therefore, we created a new activator movable explanatory model with movable upper and lower anterior teeth, and conducted tests and questionnaires before and after lectures on orthodontic appliances to examine its educational effects. As a result, the activator movement explanatory model turns out to significantly enhance students' understanding of the formation, structure and function of the induced surface in activator. In addition, the inclination of the teeth can be intuitively understood as the mandible moves, and the tooth movement mechanism of action is easy to understand. Based on the above, the new movable explanatory model was considered to be an effective tool for students to understand the mechanism of action and structure of activator.
Practice : Dentistry
Keywords :