超音波による舌骨の下顎頭との同時動態評価法の試み

DOI
  • 堀内 悟
    新潟大学大学院医歯学総合研究科顎顔面放射線学分野
  • 小林 太一
    新潟大学大学院医歯学総合研究科顎顔面放射線学分野
  • 池 真樹子
    新潟大学大学院医歯学総合研究科顎顔面放射線学分野
  • 田中 礼
    新潟大学大学院医歯学総合研究科顎顔面放射線学分野
  • 林 孝文
    新潟大学大学院医歯学総合研究科顎顔面放射線学分野

書誌事項

タイトル別名
  • Ultrasonographic Dynamic Evaluation of Synchronous Motion of the Hyoid Bone and the Mandibular Condyle
  • ―睡眠時無呼吸症候群に対する口腔内装置の効果判定を目指して―
  • A New Approach for Predicting the Treatment Response to Oral Appliances for Obstructive Sleep Apnea Syndrome

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抄録

Objective: In order to establish a response indicator for predicting the treatment effects of oral appliances in patients with obstructive sleep apnea syndrome, we examine the utility of synchronous real-time dynamic ultrasound monitoring of the motion of the hyoid bone and the mandibular condyle during anterior mandibular movement.<br>Materials and methods: Eight healthy volunteers, including three females and five males, were recruited for this study. None of the subjects had a history of sleep-related disorders. The synchronous real-time dynamic monitoring of mandibular protrusion was performed using two ultrasound systems with dedicated intraoperative probes. We measured five consecutive movements of the lateral portion of the mandibular condyle as an indicator of the anterior movement of the mandible and five consecutive movements of the lateral edge of the hyoid body as an indicator of the caudal movement of the hyoid bone.<br>Results: The variation coefficient of the response ratio, which was defined as the ratio between hyoid caudal movement and mandibular anterior movement, was smaller than the amount of hyoid caudal movement in every subject. The mean amount of hyoid movement ranged from 2.0mm to 9.0mm, and the mean response ratio ranged from 0.28 to 0.87. The mean variation coefficient ranged from 5.2% to 19.5% for hyoid movement and from 4.6% to 16.1% for the response ratio.<br>Conclusion: It was speculated that interpersonal comparisons could be performed using representative individual response ratio values as an indicator of the treatment effects of oral appliances.

収録刊行物

  • 歯科放射線

    歯科放射線 56 (2), 64-69, 2017

    特定非営利活動法人 日本歯科放射線学会

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