The assessment of ultrasonic instruments in dentistry

Lea, Simon Christian (2004). The assessment of ultrasonic instruments in dentistry. University of Birmingham. Ph.D.

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Introduction: Ultrasonic scalers are an accepted alternative to hand instruments for the removal of plaque, calculus and stains from teeth. Although the use of these instruments is widespread, the vibrational motion of scalers is not fully understood. Their high frequency, low displacement amplitude oscillations have previously been difficult to analyse. Laser vibrometry is a non-invasive technique for measuring the vibration characteristics of oscillating objects.

Aim: The aim of this research thesis was to utilise scanning laser vibrometry to assess a range of dental ultrasonic systems under various operating conditions similar to those employed clinically.

Conclusions: The use of scanning laser vibrometry revealed differences in the operation characteristics of different ultrasonic scalers. Clinicians and researchers should be aware of the variability in the performance of ultrasonic scalers since this may affect both clinical procedures and future research. Further research into the design and operation of ultrasonic scaler tips is needed.

Type of Work: Thesis (Doctorates > Ph.D.)
Award Type: Doctorates > Ph.D.
College/Faculty: Schools (1998 to 2008) > School of Dentistry
School or Department: Dentistry
Funders: Engineering and Physical Sciences Research Council
Subjects: R Medicine > RK Dentistry


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