<Original Article>Application of modal analysis to human subjects: comparison of healthy subjects and cleft lip and palate subjects
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- Du Li
- Department of Maxillo-Facial Prosthetics, Life Science of Maxillo-Facial Systems, Dental Research Division, Graduate School,
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- Suzuki Ruri
- Department for Stomatognathic Dysfunction, Faculty of Dentistry,
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- Taniguchi Hisashi
- Clinic for Stomatognathic Dysfunction, University Hospital, Faculty of Dentistry, Tokyo Medical and Dental University
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- Ohyama Takashi
- Department of Maxillo-Facial Prosthetics, Life Science of Maxillo-Facial Systems, Dental Research Division, Graduate School, Department for Stomatognathic Dysfunction, Faculty of Dentistry, Clinic for Stomatognathic Dysfunction, University Hospital, Faculty of Dentistry, Tokyo Medical and Dental University
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To evaluate the vibrational characteristics of the maxillary arch, modal analysis was applied to human subjects. Twelve healthy human subjects and 2 cleft lip and palate (CLP) subjects with surgical failure in their cleft area were chosen for this study. The main measurement system was composed of an impact hammer, acceleration sensor, CF-6400 FFT Analyzer, PC-9821Xn personal computer, and Vibrant PC modal analysis software. The measurement points were established on 12 teeth between the upper first molars on both sides of the mouth in healthy subjects, and on 10 teeth in CLP subjects. In all subjects, one distinct resonance peak was observed in each transfer function at each measurement point. All of the transfer functions of a given subject strongly resembled each other in terms of shape. The amplitude and modal shapes of the maxillary arches of all the subjects were obtained by using a curve-fitting function in the software. In the healthy subjects, the maxillary arch expanded outward and shrank inward on vibration with no node after an impact. In the CLP subjects, the phase lag between the large and small segment was distinctly observed after an impact. In this study, the applicability of modal analysis for human subjects was demonstrated.
収録刊行物
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- Journal of Medical and Dental Sciences
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Journal of Medical and Dental Sciences 45 (1), 39-49, 1998
国立大学法人 東京医科歯科大学
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詳細情報 詳細情報について
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- CRID
- 1390001205518121984
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- NII論文ID
- 110000075911
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- NII書誌ID
- AA11163862
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- ISSN
- 21859132
- 13428810
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可