Regulation of human jaw tapping force with visual biofeedback.
The purpose of this study, which made use of visual biofeedback, was to determine whether jaw tapping force reproduction is related to the strength of tapping and to investigate how jaw tapping force affects the tapping movement curve. Nine healthy examinees were asked to reproduce jaw tapping force. We found that the ease and method of regulating jaw tapping force differed depending on the target force. We also found that jaw tapping force was regulated by alteration of the jaw opening distance, the duration of the tooth contact phase, the duration of the jaw closing phase, the maximum jaw opening velocity, and the maximum jaw closing velocity. However, the duration of the jaw opening phase and cycle time was not affected by force regulation under our experimental conditions.
Suenaga
H
H
Graduate School of Dentistry, Nagasaki University, and Department of Removable Prosthodontics, Nagasaki University School of Dentistry, Nagasaki, Japan. suen@dh.nagasaki-u.ac.jp
Yamashita
R
R
Yamabe
Y
Y
Torisu
T
T
Yoshimatsu
T
T
Fujii
H
H
D000328:Adult; D000704:Analysis of Variance; D001676:Biofeedback, Psychology / Q000379:methods*; D001732:Bite Force; D003799:Dental Stress Analysis / Q000295:instrumentation / Q000379:methods / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D008297:Male; D008410:Masticatory Muscles / Q000502:physiology*; D012016:Reference Values