アブストラクト(54巻1号:神奈川歯学)

神奈川歯学

Japanese

Title : 上下顎骨切術を施行した逆cantを伴った顔面非対称症の一例
Subtitle : 症例
Authors : 窪田光慶1), 石渡麻美2), 鈴木健司3), 不島健持4), 小林優3)
Authors(kana) :
Organization : 1)神奈川歯科大学大学院歯学研究科歯学教育学講座, 2)上大岡にしだ歯科クリニック, 3)神奈川歯科大学大学院歯学研究科顎顔面病態診断治療学講座顎顔面外科学分野, 4)神奈川歯科大学大学院歯学研究科高度先進口腔医学講座歯科矯正学分野
Journal : 神奈川歯学
Volume : 54
Number : 1
Page : 43-50
Year/Month : 2019 / 6
Article : 報告
Publisher : 神奈川歯科大学学会
Abstract : 「緒言」顎変形症には, 上下顎骨の前後的な異常, 垂直的な異常を示すが, 多くの症例で下顎骨の側方への異常を伴っていることが報告されている. 下顎側方偏位は, 下顎単独で生じることもあるが, 一般に上顎臼歯の咬合高径, または上顎骨自体の垂直的高径の左右差に起因していることが多く, 上顎咬合平面の低位側への下顎偏位が見られる. このようなタイプの下顎側方偏位症例は, 下顎側方偏位症例全体の90%以上占めており, 正cant症例といわれている. 一方, 上顎の咬合平面の低位側とは逆方向に偏位する逆cant症例が非常に稀に認められる. 逆cant症例は, 従来のセファロを用いたシミュレーション等では術後の顎顔面形態の予測が困難であると考えられる. 本症例では不島らが開発した Mandibular motion Tracking System (ManMoS MacroSystem Co, Tokyo Japan)を用いて, 実際の下顎模型を動かすことによって仮想空間で下顎骨の位置付けを行なった.
Practice : 歯科学
Keywords : 顔面非対称, 外科矯正, 逆cant

English

Title : Case report of two jaw surgical applied to the patient with facial asymmetry case with revers cant
Subtitle :
Authors : Mitsuyoshi KUBOTA1), Mami ISHIWATA2), Kenji SUZUKI3), Kenji FUSHIMA4), Masaru KOBAYASHI3)
Authors(kana) :
Organization : 1)Department of Dental Education, Graduate School of Dentistry, Kanagawa Dental University, 2)Kamiooka Nishida Dental Clinic, 3)Division of Oral and Maxillofacial Surgery, Department of Dentomaxillofacial Diagnosis and Treatment, Graduate School of Dentistry, Kanagawa Dental University, 4)Division of Orthodontics, Department of Highly Advanced Stomatology, Graduate School of Kanagawa Dental University
Journal : Kanagawa Shigaku
Volume : 54
Number : 1
Page : 43-50
Year/Month : 2019 / 6
Article : Report
Publisher : Kanagawa Odontological Society
Abstract : [Abstract] Although a facial asymmetry could occur singly at the mandibular, it generally results from the vertical dimension at the maxillary molars or the difference between the left and right vertical diameters at the maxillary. More than 90% of the mandibular deviation cases show the mandibular deviation towards the lower occlusion plane side. On the other hand, the deviation in the opposite direction could very rarely be observed. This report case is the latter and a 19-year-old man presented with the facial asymmetry and mandibular protrusion. The clinical examination result showed the congenial absence of the maxillary left and right first premolar teeth and that of the mandibular right second premolar tooth. And it also showed the wide arch width of maxillary and no cross bite at the side of deviated molar teeth was detected. The cephalogram analysis showed the overgrowth of mandible, the low vertical dimension of the left maxillary occlusion and the mandibular deviation towards the right side. The preoperative orthodontic treatment was conducted for one year and 3 months. Then ManMoS enabled the interference between mandibular proximal and distal bone segments to be avoided, and make the symmetric to locate the mandibular bones with the emphasis on skeletal frame. The operation method was conducted in the SSRO and LeFort type I. The postoperative orthodontic treatment was conducted for one year and 4 months. As a result, the symmetrical postoperative face features along with facial frames are observed. After 3-year retaining period, the occasional has been stable.
Practice : Dentistry
Keywords :