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Development of Therapeutic Procedure to Stimulate Velopharyngeal Function using Newly Designed Speech Appliance.

Research Project

Project/Area Number05807187
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 補綴理工系歯学
Research InstitutionOSAKA UNIVERSITY

Principal Investigator

TACHIMURA Takashi  DENTAL HOSPITAL,DIV.FOR OROFAC.DISORD., 歯学部・付属病院, 講師 (60188266)

Co-Investigator(Kenkyū-buntansha) HARA Hisanaga  DENTAL HOSPITAL,DIV.FOR OROFAC.DISORD., 歯学部・付属病院, 医員
佐藤 耕一  大阪大学, 歯学部・付属病院, 医員
SATOH Koich  DENTAL HOSPITAL,DIV.FOR OROFAC.DISORD.
Project Period (FY) 1993 – 1994
Project Status Completed(Fiscal Year 1994)
Budget Amount *help
¥1,800,000 (Direct Cost : ¥1,800,000)
Fiscal Year 1994 : ¥800,000 (Direct Cost : ¥800,000)
Fiscal Year 1993 : ¥1,000,000 (Direct Cost : ¥1,000,000)
KeywordsSPEECH APPLIANCE / LEVATOR VELI PALATINI MUSCLE / ORAL AIR PRESSURE / NASAL AIR PRESSURE / CLEFT PALATE / VELOPHARYNGEAL INCOMPETENCE / BULB REDUCTION / SPEECH FUNCTION / バルブ削除療法
Research Abstract

The purpose of this study is to establish a strategy to stimulate velopharyngeal function using speech bulb reduction. To determine an adequate reduction volume of the bulb, levator muscle activity associated with changes in nasal air flow rate and oral air pressure was monitored when respiratory air was allowed into the nasal cavity through the opening drilled in the vertical center of the bulb of a speech appliance. The opening area was varied from 0 (occluded condition) to 38.5mm^2 through 12.6mm^2. Multiple regression analyzes showed that levator muscle activity correlated with nasal air flow rate and oral air pressure, while nasal air flow rate contributed to the changes in levator muscle activity more significantly than oral air pressure did. Based on the results, prototype strategy of bulb reduction therapy was designed and applied to 5 repaired cleft palate patients who were routinely wearing a speech appliance. That is, bulb reduction was performed so that decrease in the bulb volume could be equal to the circular area ranged from 12.6mm^2 to 38.5mm^2 in horizontal projection. The reduction was carried out monthly for 3 months. Nasopharyngeal fiberscopic and perceptual evaluations were carried out onemonth after each reduction. As results, four out of five subjects showed complete closure of the velopharynx and no nasal emission during obstruent speech, and the improved veloharyngeal function was observed in each evaluation. However, another subject showed complete closure in first and second evaluation, while third evaluation did not show any improvement. The results suggested that this prototype of bulb reduction strategy might be effective for the improvement of velopharyngeal function, while the process towards improved velopharyngeal function might be variable across subjects. A maintenance of the reduction effect warrants future study.

Report

(3results)
  • 1994 Annual Research Report   Final Research Report Summary
  • 1993 Annual Research Report

Research Products

(18results)

All Other

All Publications

  • [Publications] 舘村 卓: "咽頭弁形成術後に生じた睡眠時無呼吸症の治療-UPPP(Uvulopalatopharyngoplasty)-を用いて改善できた1症例" 日本口蓋裂学会雑誌. 19. 77-87 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 舘村 卓: "鼻咽腔閉鎖機能に対する持続的鼻腔内陽圧負荷(CPAP Continuous Positive Air Pressure)の効果-口蓋帆挙筋活動に対する口腔内圧・鼻腔内圧の影響" 日本口蓋裂学会雑誌. 19. 111-119 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 舘村 卓: "口蓋裂術後鼻口腔瘻の鼻咽腔閉鎖機能調節機構に及ぼす影響" 日本口蓋裂学会雑誌. 20(発表予定). 33-38 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 舘村 卓: "鼻咽腔閉鎖機能調節機構に基づいたバルブ削除療法の臨床応用" 大阪大学歯学雑誌. 40(発表予定). (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 原 久永: "開口器の固定補助副子の考案" 大阪大学歯学雑誌. 38. 514-518 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 原 久永: "発音時における口蓋帆挙筋活動に対する口腔内圧、鼻腔気流量の影響-スピーチエイド装着症例における検討-" 日本口蓋裂学会雑誌. 20. 9-16 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.Tachimura, H.Hara, K.Satoh, H.Koh, H.Kishimoto, T.Wada: "Treatment of obstructive sleep apnea syndrome (OSAS) following pharyngeal flap operation with uvulopalatopharyngoplasty (UPPP) : Report of a case" J.Jpn.Cleft Palate Assoc.19-2. 77-87 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.Tachimura, H.Hara, H.Koh, K.Satoh, H.Kishimoto, T.Wada: "Effect of oral and nasal air pressure on levator palatini muscle activity during continuous positive air pressure (CPAP) loading" J.Jpn.Cleft Palate Assoc.19-3. 111-119 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.TACHIMURA,H.HARA,T.WADA,K.SATOH,H.KOH,H.KISHIMOTO,C.MORIMOTO: "Effect of Temporary Closure of Oro-nasal Fistula on Levator Veli Palatini Muscle Activity (In Press)" J.Jpn.Cleft Palate Assoc.20-2. (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] T.TACHIMURA,H.HARA,H.KOH,C.MORIMOTO,T.WADA: "Speech Bulb Reduction Therapy Based on Effect of Aerodynamic Variable on Velopharyngeal Function (in press)" J.Osaka Univ.Dent.Soc.40-2. (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] H.Hisanaga, T.Tachimura, T.Wada, K.Satoh: "Employment of a temporary stabilizing device for dingman mouth gag." J.Osaka Univ.Dent.Soc.38-2. 514-518 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] H.HARA,T.TACHIMURA,T.WADA: "Effect of nasal air flow and oral air pressure on levator veli palatini muscle activity in cases wearing speech appliance." J.Jpn Cleft Palate Assoc. 20-1. 9-16 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 舘村 卓: "咽頭弁形成術後に生じた睡眠時無呼吸症の治療-UPPP(Uvulopalatopharyngoplasty)-を用いて改善できた1症例" 日本口蓋裂学会雑誌. 19. 77-87 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 舘村 卓: "鼻咽腔閉鎖機能に対する持続的鼻腔内陽圧負荷(CPAP Continuous Positive Air Pressure)の効果-口蓋帆挙筋活動に対する口腔内圧・鼻腔内圧の影響" 日本口蓋裂学会雑誌. 19. 111-119 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 舘村 卓: "口蓋裂術後鼻口腔瘻の鼻咽腔閉鎖機能調節機構に及ぼす影響(発表予定)" 日本口蓋裂学会雑誌. 20. 33-38 (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] 舘村 卓: "鼻咽腔閉鎖機能調節機構に基づいたバルブ削除療法の臨床応用(発表予定)" 大阪大学歯学雑誌. 40. (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] 原 久永: "発音時における口蓋帆挙筋活動に対する口腔内圧、鼻腔気流量の影響-スピーチエイド装着症例における検討-" 日本口蓋裂学会雑誌. 20. 9-16 (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] 原 久永: "開口器の固定補助用副子の考案" 大阪大学歯学雑誌. 38. 514-518 (1993)

    • Related Report
      1993 Annual Research Report

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Published : 1993-04-01   Modified : 2016-04-21  

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