オガワ タクミ   Ogawa Takumi
  小川 匠
   所属   鶴見大学  歯学部 歯学科 クラウンブリッジ補綴学
   鶴見大学  歯学部 歯学科 歯科医学教育学
   職種   教授
論文種別 【査読あり】 研究論文(学術雑誌)
言語種別 英語
査読の有無 査読あり
表題 Characteristics of mandibular movements in patients with square mandible
掲載誌名 正式名:ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTOLOGY
ISSNコード:10792104
出版社 MOSBY-ELSEVIER
巻・号・頁 108(5),pp.E75-E81
著者・共著者 Shinya Hirai,Takumi Ogawa,Yuko Shigeta,Eriko Ando,Rio Hirabayashi,Tomoko Ikawa,Shintaro Kasama,Shunji Fukushima,Yosizo Matsuka
発行年月 2009/11
概要 Objective. The aim was to report the kinetics of masticatory muscles using a 4-dimensional muscle model and kinetically investigate the etiology of square mandible (SQM) in vivo.Study design. To ascertain the mandibular movements in patients with SQM, we compared a group of 11 SQM patients with painless limited mouth opening to a matched group of 11 healthy volunteers who acted as control subjects. Mandibular movements were recorded using a 6-degrees-of-freedom jaw-tracking device, with the incisal and kinematic condylar as analytic points.Results. For the control group, mean tracking distance for the incisal point was 50.1 +/- 6.8 mm, whereas for the SQM group mean tracking distance was 27.1 +/- 2.8mm. With lateral excursions, the control group's mean tracking distance of the incisal point was 9.9 +/- 2.01 mm, and the SQM group's was 8.1 +/- 1.64 mm.Conclusion. Despite a sufficient lateral excursion, motion of the mandible was limited by some factors at opening and suggests that the mode of lateral movements in SQM patients may differ slightly from those in healthy individuals. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2009;108:e75-e81)
DOI 10.1016/j.tripleo.2009.07.008
PMID 19836717