Vibration transmission across the temporomandibular joint.
A non-invasive method of assessing the status of the temporomandibular joint is presented. The method involves placing a computer-controlled vibrator against a lower incisor, and microphones over the temporal bones. The amplitude of the signal transmitted is shown to be a function of the input frequency, the position of the mandible and the loading on the joint.
Prinz
J F
JF
Department of Anatomy, University of Hong Kong, Hong Kong.
D000162:Acoustics / Q000295:instrumentation; D000293:Adolescent; D000328:Adult; D000368:Aged; D000669:Amplifiers, Electronic; D000703:Analog-Digital Conversion; D016302:Centric Relation; D002648:Child; D005260:Female; D006801:Humans; D007180:Incisor / Q000502:physiology; D008297:Male; D008334:Mandible / Q000033:anatomy & histology / Q000502:physiology; D008410:Masticatory Muscles / Q000502:physiology; D008437:Maxilla / Q000502:physiology; D008875:Middle Aged; D009119:Muscle Contraction; D011312:Pressure; D012815:Signal Processing, Computer-Assisted; D013314:Stress, Mechanical; D013701:Temporal Bone / Q000502:physiology; D013704:Temporomandibular Joint / Q000033:anatomy & histology / Q000502:physiology*; D014732:Vibration