Cleaning ability and induced dentin loss of a magnetostrictive ultrasonic instrument at different power settings.

Clinical Oral Investigations
Kathrin Lampe BlessPatrick R Schmidlin

Abstract

Some laboratory studies have evaluated the oscillation mode of ultrasonic scalers. None of them recorded its influence on calculus removal and quantified dental hard tissue loss. This study aimed to compare the performance of a magnetostrictive ultrasonic instrument at different power settings in vitro in relation to the tip oscillation activity. The oscillation activity of the straight Slimline® insert in the Cavitron® ultrasonic scaling device was analyzed at five different power settings with the help of two laser vibrometers. The performance of this instrument was tested on 60 roots of human single-rooted teeth. Twelve roots each were randomly assigned to be instrumented at a given power setting. Every root was instrumented for 120 s at a standardized instrumentation force of 0.1 ± 0.05 N. In addition, another 30 periodontally involved roots with subgingival calculus were instrumented accordingly to assess the calculus removal potential. The surface characteristics after instrumentation were analyzed under scanning electron microscope. The instrumentation at minimum power setting resulted in an mean increase of the root surface roughness of 0.18 ± 0.28 compared to 0.51 ± 0.48 at maximum power setting (P = 0.0327). The loss ...Continue Reading

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Citations

Dec 10, 2013·Clinical Oral Investigations·Thomas ThurnheerPatrick R Schmidlin
Nov 26, 2014·International Journal of Dental Hygiene·D HoferP R Schmidlin
May 20, 2016·Clinical Oral Investigations·Stefanie J GartenmannPatrick R Schmidlin
Nov 20, 2016·International Journal of Dental Hygiene·E BozbayA Pilloni

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