Measurement of jerk-cost using a triaxial piezoelectric accelerometer for the evaluation of jaw movement smoothness
| العنوان: | Measurement of jerk-cost using a triaxial piezoelectric accelerometer for the evaluation of jaw movement smoothness |
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| المؤلفون: | Tetsu Nemoto, Ichiro Minami, Teruyasu Nakamura, Noriyuki Wakabayashi, Yoshimasa Igarashi, Kazuhiro Oogai |
| المصدر: | Journal of Oral Rehabilitation. |
| بيانات النشر: | Wiley, 2010. |
| سنة النشر: | 2010 |
| مصطلحات موضوعية: | Smoothness (probability theory), Piezoelectric accelerometer, business.industry, Dentistry, medicine.disease, Accelerometer, Displacement (vector), Masticatory force, stomatognathic diseases, Jerk, stomatognathic system, medicine, Malocclusion, business, General Dentistry, Mastication, Mathematics |
| الوصف: | Jerk-cost as a measure of jaw movement smoothness has been used to evaluate the masticatory function of patients with tooth loss and malocclusion. Jerk-cost measuring systems have thus far been unable to determine the jerk-cost of each chewing phase over time. The purposes of this study were (i) to develop a new method for measuring momentary jerk-cost of the jaw movement using a small triaxial piezoelectric accelerometer and (ii) to test the hypothesis that the lowest smoothness is seen during jaw-opening phase. The accelerometer was attached to the skin of the mentum of each subject. Vertical jaw displacement, acceleration, the jerk, and the time differential of jerk-cost during gum chewing were analysed as a function of time in five normal dentate subjects (n = 5). The system revealed intra-class correlation coefficients of intra-examiner, inter-examiner, and test-retest consistency of substantially high values (0.80-0.88). In all subjects, the highest jerk-cost was observed in the opening phase of each chewing cycle when the gum was parting from the teeth; the lowest jerk-cost was observed in the intercuspal phase throughout the chewing cycle, thus confirming the hypothesis. Significant differences were observed between the opening, closing, and intercuspal chewing phases (N = 5, P = 0.007). The smoothness measurement system used in this study evaluated the momentary smoothness of each chewing phase in the masticatory cycle. The system may serve as a diagnostic tool to evaluate the smoothness of the jaw movement in general dental practice. |
| تدمد: | 1365-2842 0305-182X |
| DOI: | 10.1111/j.1365-2842.2010.02085.x |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::8d78ec7711e9a62bb2d24b3249c63ea0 https://doi.org/10.1111/j.1365-2842.2010.02085.x |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........8d78ec7711e9a62bb2d24b3249c63ea0 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 13652842 0305182X |
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| DOI: | 10.1111/j.1365-2842.2010.02085.x |