Evaluation of jaw position of the oral appliance for obstructive sleep apnea syndrome

• Project/Area Number: 23792242
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Prosthetic dentistry
• Research Institution: Kyushu Dental College
• Principal Investigator: ERI Makihara 九州歯科大学, 歯学部, 助教 (30433402)
• Co-Investigator(Renkei-kenkyūsha): NISHIKAWA Aoi 九州歯科大学, 顎口腔欠損再構築学分野
• Project Period (FY): 2011-04-28 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
• Keywords: 閉塞型睡眠時無呼吸症候群 / 口腔内装置 / 治療顎位 / 呼吸量 / 気道形態 / 使用状況 / 睡眠時無呼吸症候群 / 治療用顎位

Outline of Final Research Achievements

We evaluated an appropriate jaw opening by oral appliance for obstructive sleep apnea syndrome (OSAS) patients. Although FIF25-75 increased with jaw opening in both groups，a similar tendency for airway volume was not observed．It is suggested that it is better to decrease unnecessary jaw opening to reduce discomfort for OSAS patients．
We investigated the status of use of oral appliance and following medical consultation (re-evaluation of treatment effect) for OSAS patient. 21 patients were currently using their OAs. Almost patients reported improved subjective symptoms. The most common complication was excessive salivation. The most common reason to quit was “no treatment effect”. Sixteen patients had not undergone re-evaluation after the therapy, and the most common reasons for this were “no treatment effect” and “no time for re-evaluation”. It was necessary to improve device setting and quality to obtain more treatment effects and patients acceptance．

Research Products

• [Journal Article] Evaluation of appropriate jaw opening by an oral appliance for patients with obstructive sleep apnea syndromee (2015)
  • Author(s): 西川 葵，槙原絵理，鱒見進一
  • Journal Title: Annals of Japan Prosthodontic Society Volume: 7 Issue: 1 Pages: 46-54
  • DOI: 10.2186/ajps.7.46
  • NAID: 130004954397
  • ISSN: 1883-4426, 1883-6860
  • Peer Reviewed / Open Access
• [Journal Article] 閉塞型睡眠時無呼吸症候群患者に対する口腔内装置の使用状況に関するアンケート調査報告 (2015)
  • Author(s): 槙原絵理，河野稔広，西川 葵，宮嶋隆一郎，津田尚吾，鱒見進一
  • Journal Title: 睡眠口腔医学 Volume: 2 Pages: 00-00
  • NAID: 130007770855
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] 閉塞型睡眠時無呼吸症候群患者に対する口腔内装置の使用状況および治療効果の検討 (2015)
  • Author(s): 槙原絵理，河野稔広，宮嶋隆一郎，鱒見進一
  • Organizer: 第124回日本補綴歯科学会学術大会
  • Place of Presentation: 大宮
  • Year and Date: 2015-05-30 – 2015-05-31
• [Presentation] Assessment of anterior mandibular positioning device for OSAS (2015)
  • Author(s): Eri Makihara, Shin-ichi Masumi
  • Organizer: 93rd General session & Exhibition of the IADR
  • Place of Presentation: Boston
  • Year and Date: 2015-03-11 – 2015-03-14
• [Presentation] Assessment of anterior mandibular positioning device for obstructive sleep apnea patients (2015)
  • Author(s): Eri Makihara, Toshihiro Kawano, Shin-ichi Masumi
  • Organizer: The 3rd meeting of Asian Pacific Conference
  • Place of Presentation: Fukuoka
  • Year and Date: 2015-01-24
• [Presentation] 閉塞型睡眠時無呼吸症候群患者に対する口腔内装置の適切な開口量の検討 (2014)
  • Author(s): 西川 葵，鱒見進一，槙原絵理
  • Organizer: 第123回日本補綴歯科学会学術大会
  • Place of Presentation: 仙台
  • Year and Date: 2014-05-24 – 2014-05-25
• [Presentation] 閉塞型睡眠時無呼吸症候群患者に対する口腔内装置の使用状況に関するアンケート調査報告 (2013)
  • Author(s): 槙原絵理,鱒見進一,河野稔広,西川 葵,宮嶋 隆一郎
  • Organizer: 第122回日本補綴歯科学会学術大会・総会
  • Place of Presentation: 福岡
• [Presentation] 開口量の違いが呼吸器量に及ぼす影響について (2012)
  • Author(s): 西川 葵，槙原絵理，鱒見進一
  • Organizer: 日本顎口腔機能学会第４９回学術大会
  • Place of Presentation: 北九州