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著作: Nakazawa Y/Yatani Hirofumi/Minakuchi Hajime/[松香 芳三]/Gender differences in neuroselective current perception thresholds of the trigeminal and median nerves/[Prosthodontic Research & Practice]

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251612
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2013年3月7日(木) 16:45:30
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三木 ちひろ
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松香 芳三
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種別 必須 学術論文(審査論文)
言語 必須 英語
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著者 必須
  1. (英) Nakazawa Y
    役割 任意
    貢献度 任意
    学籍番号 推奨
  2. (英) Yatani Hirofumi
    役割 任意
    貢献度 任意
    学籍番号 推奨
  3. (英) Minakuchi Hajime
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  4. 松香 芳三([徳島大学.大学院医歯薬学研究部.歯学域.口腔科学部門.臨床歯学系.顎機能咬合再建学])
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(英) Gender differences in neuroselective current perception thresholds of the trigeminal and median nerves

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(英) Purpose : The goal of this study was to ascertain gender differences in sensory thresholds by measuring current perception threshold (CPT) values of the trigeminal and median nerves in healthy individuals.Materials and Methods : CPT values were measured using a Neurometer® (Neurotoron, Baltimore, MD, USA) when electrical stimulation of 2, 000, 250, or 5 Hz was applied to the left preauricular (trigeminal nerve) and thenar eminence (median nerve) regions in 20 healthy volunteers (10 males and 10 females with a mean age of 24.4 years). The day-to-day reliability of CPT was first verified in the trigeminal region by a test-retest method using an interclass correlation coefficient (ICC). The CPT values were then measured and statistically analyzed to evaluate whether the values were influenced by the electrical stimulation frequency and gender difference.Results : Irrespective of the stimulation frequency, the ICC values were high (2, 000 Hz : 0.62, 250 Hz : 0.80, 5 Hz : 0.86), showing the high day-to-day reliability of CPT. The electrical frequency of the stimulation significantly influenced the CPT (ANOVA : p<0.0001) ; the mean CPT value during 2, 000 Hz stimulation was significantly higher than the value during 250 and 5 Hz stimulation (Bonferroni test : p<0.001). For median nerve stimulation, the mean CPT was lower for women than for men, but no significant gender difference was identified (ANOVA : p=0.11). Conversely, gender exerted significant effects on CPTs (ANOVA : p=0.02) for trigeminal nerve simulation. As to stimulation frequency, the mean CPT following 2, 000 Hz stimulation of the trigeminal nerve was significantly lower for women than for men (Bonferroni test : p<0.001).Conclusion : The results suggest that healthy women are more sensitive to tactile or pressure sensations compared to healthy men, and that the effects of gender differences on the sensory threshold can be ignored with pain-related nerve fibers such as Aδ and C fibers.

キーワード 推奨
  1. (英) gender differences
  2. (英) current perception threshold
  3. (英) trigeminal nerve
  4. (英) median nerve
発行所 推奨 日本補綴歯科学会
誌名 必須 Prosthodontic Research & Practice([日本補綴歯科学会])
(pISSN: 1347-7021)
ISSN 任意 1347-7021
ISSN: 1347-7021 (pISSN: 1347-7021)
Title: Prosthodontic Research & Practice
Supplier: 公益社団法人 日本補綴歯科学会
Publisher: Japan Prosthodontic Society
 (医中誌Web  (J-STAGE  (CrossRef (No Scopus information.)
必須 2
必須 1
必須 72 75
都市 任意
年月日 必須 2003年 10月 1日
URL 任意 http://ci.nii.ac.jp/naid/10012436547/
DOI 任意 10.2186/prp.2.72    (→Scopusで検索)
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NAID 任意 10012436547
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