publication . Article . 2009

Cavitation occurrence around ultrasonic dental scalers

Bernhard Felver; David C. King; Simon C. Lea; Gareth J. Price; A. Damien Walmsley;
Open Access English
  • Published: 01 Jun 2009
  • Country: United Kingdom
Abstract
Ultrasonic scalers are used in dentistry to remove calculus and other contaminants from teeth. One mechanism which may assist in the cleaning is cavitation generated in cooling water around the scaler. The vibratory motion of three designs of scaler tip in a water bath has been characterised by laser vibrometry, and compared with the spatial distribution of cavitation around the scaler tips observed using sonochemiluminescence from a luminol solution. The type of cavitation was confirmed by acoustic emission analysed by a ‘Cavimeter’ supplied by NPL. A node/antinode vibration pattern was observed, with the maximum displacement of each type of tip occurring at th...
Subjects
free text keywords: Scanning, Cavitation, Ultrasonics, Cooling water, Lasers, Dentistry, Size distribution, Acoustics and Ultrasonics, Chemical Engineering (miscellaneous), Radiology Nuclear Medicine and imaging, Acoustic emission, Dental instruments, Sonochemistry, Node (physics), Optics, business.industry, business, Acoustics, Ultrasound, Ultrasonic sensor, Vibration, Chemistry
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