Passive ultrasonic irrigation of the root canal: a review of the literature
Top Cited Papers
- 9 May 2007
- journal article
- review article
- Published by Wiley in International Endodontic Journal
- Vol. 40 (6), 415-426
- https://doi.org/10.1111/j.1365-2591.2007.01243.x
Abstract
Ultrasonic irrigation of the root canal can be performed with or without simultaneous ultrasonic instrumentation. When canal shaping is not undertaken the term passive ultrasonic irrigation (PUI) can be used to describe the technique. In this paper the relevant literature on PUI is reviewed from a MEDLINE database search. Passive ultrasonic irrigation can be performed with a small file or smooth wire (size 10–20) oscillating freely in the root canal to induce powerful acoustic microstreaming. PUI can be an important supplement for cleaning the root canal system and, compared with traditional syringe irrigation, it removes more organic tissue, planktonic bacteria and dentine debris from the root canal. PUI is more efficient in cleaning canals than ultrasonic irrigation with simultaneous ultrasonic instrumentation. PUI can be effective in curved canals and a smooth wire can be as effective as a cutting K-file. The taper and the diameter of the root canal were found to be important parameters in determining the efficacies of dentine debris removal. Irrigation with sodium hypochlorite is more effective than with water and ultrasonic irrigation is more effective than sonic irrigation in the removal of dentine debris from the root canal. The role of cavitation during PUI remains inconclusive. No detailed information is available on the influence of the irrigation time, the volume of the irrigant, the penetration depth of the instrument and the shape and material properties of the instrument. The influence of irrigation frequency and intensity on the streaming pattern as well as the complicated interaction of acoustic streaming with the adherent biofilm needs to be clarified to reveal the underlying physical mechanisms of PUIKeywords
This publication has 88 references indexed in Scilit:
- Sonoporation from Jetting Cavitation BubblesBiophysical Journal, 2006
- A comparison between a smooth wire and a K‐file in removing artificially placed dentine debris from root canals in resin blocks during ultrasonic irrigationInternational Endodontic Journal, 2005
- How Snapping Shrimp Snap: Through Cavitating BubblesScience, 2000
- Bacterial eradication from root dentine by ultrasonic irrigation with sodium hypochloriteInternational Endodontic Journal, 1998
- Scanning electron microscope study comparing four root canal preparation techniques in small curved canalsInternational Endodontic Journal, 1997
- Evaluation of the effectiveness of sodium hypochlorite used with three irrigation methods in the elimination of Enterococcus faecalis from the root canal,in vitroInternational Endodontic Journal, 1997
- The Acoustic BubbleThe Journal of the Acoustical Society of America, 1994
- The vibratory pattern of ultrasonic files driven piezoelectricallyInternational Endodontic Journal, 1993
- The Evolution of Silicon Wafer Cleaning TechnologyJournal of the Electrochemical Society, 1990
- An investigation into cavitational activity occurring in endosonic instrumentationJournal of Dentistry, 1988