Some observations on the mechanics of oscillation of ultrasonic files.
The resonant characteristics of ultrasonic files driven by the Cavi-Endo unit were examined. The investigation was carried out by evaluating the pattern of oscillation and the power emitted by the ultrasonic files. It was observed that the files oscillated in a sinusoidal fashion, exhibiting a standing wave pattern along the file. The power emitted was found to be directly proportional to the flexibility of the file. Such behaviour is typical of a system that exhibits resonance.
Ahmad
M
M
Department of Conservative Dentistry, University of Malaya, Kuala, Lumpur, Malaysia.
D003754:Dental High-Speed Equipment; D009991:Oscillometry; D012390:Root Canal Therapy / Q000295:instrumentation*; D014464:Ultrasonic Therapy / Q000295:instrumentation*; D014732:Vibration