Influence of the oscillation direction of an ultrasonic file on the cleaning efficacy of passive ultrasonic irrigation

Journal of Endodontics
Lei-Meng JiangLucas W M van der Sluis

Abstract

The cleaning mechanisms and characteristics of passive ultrasonic irrigation (PUI) are not yet completely understood. The aim of this study was to investigate whether the oscillatory direction of the ultrasonically driven file had an influence on dentin debris removal from artificially made grooves in standardized root canals. Each of 20 ex vivo root canal models with a standard groove in the apical portion of one canal wall filled with dentin debris received PUI repeatedly, either with file oscillation toward the groove or with file oscillation perpendicular to the groove. After each irrigation procedure, the amount of dentin debris in the groove was evaluated by photographs of the groove and by scoring. The oscillations of the ultrasonic file were also visualized in vitro by using high-speed imaging at a time scale relevant to the cleaning process, order 10 microseconds. A nonparametric analysis showed significantly more dentin debris reduction when the file oscillated toward the groove (P = .002). High-speed imaging showed that the oscillation of the file is in a single plane, resulting in high-velocity jets emanating from the file tip in the direction of the oscillations. Oscillation of the ultrasonically driven file toward...Continue Reading

References

Nov 1, 1991·International Endodontic Journal·P J LumleyW R Laird
Sep 1, 1993·Journal of Endodontics·P J LumleyJ W Rippin
Jun 14, 2000·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·M K WuP R Wesselink
Apr 20, 2007·International Endodontic Journal·L W M van der SluisP R Wesselink
Dec 17, 2009·Journal of Endodontics·Lei-Meng JiangLucas W M van der Sluis

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Citations

Feb 11, 2012·Photomedicine and Laser Surgery·Figen KaptanGunduz Bayirli
Sep 23, 2014·The Journal of the Acoustical Society of America·B VerhaagenM Versluis
May 19, 2012·Journal of Endodontics·Lei-Meng JiangLucas W M van der Sluis
Jan 31, 2013·Microscopy Research and Technique·Daniel R HerreraBrenda P F A Gomes
Oct 22, 2013·International Endodontic Journal·H ArslanH S Topcuoglu
Nov 30, 2012·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Bram VerhaagenMichel Versluis
Oct 30, 2016·Microscopy Research and Technique·Fábio Pereira Linhares de CastroCarlos Eduardo da Silveira Bueno
Oct 27, 2016·Journal of Endodontics·Klaus W NeuhausAdrian Lussi
Jan 14, 2017·Australian Endodontic Journal : the Journal of the Australian Society of Endodontology Inc·Selen Küçükkaya ErenPeter Parashos
Dec 17, 2016·Brazilian Dental Journal·Rodrigo Ricci VivanMarco Antonio Hungaro Duarte
Nov 1, 2012·Journal of Child Neurology·James W Wheless, Stephanie J Phelps
Sep 17, 2013·International Endodontic Journal·C BoutsioukisE Kastrinakis
Apr 18, 2019·TheScientificWorldJournal·Mario DioguardiLorenzo Lo Muzio
Oct 3, 2020·International Journal of Dentistry·Nima Mousavi Nasab MobarakehSareh Rahmanian
Apr 19, 2011·Journal of Endodontics·Lei-Meng JiangLucas W M van der Sluis
Jun 10, 2021·Australian Endodontic Journal : the Journal of the Australian Society of Endodontology Inc·Yahya GüvenHakan Arslan

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