VALUE ADDED CLEANING AND DISINFECTION OF THE ROOT CANAL: ULTRASOUND VERSUS LASER-ACTIVATED IRRIGATION AND PIPS (PHOTON-INDUCED PHOTOACOUSTIC STREAMING)

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DE MOOR ROELAND J.G.

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Journal Paper

Paper Information

Journal: JOURNAL OF LASERS IN MEDICAL SCIENCES Year:2018 | Volume:9 | Issue:SUPPL A (9TH WORLD CONGRESS OF SOLA) Page(s): 6-6

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Title

VALUE ADDED CLEANING AND DISINFECTION OF THE ROOT CANAL: ULTRASOUND VERSUS LASER-ACTIVATED IRRIGATION AND PIPS (PHOTON-INDUCED PHOTOACOUSTIC STREAMING)

Author(s)

DE MOOR ROELAND J.G.

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Abstract

Background: Among present-day marketed systems ultrasonic activation appears to be the best way to activate and potentiate endodontic irrigants. An alternative for ultrasonic activation of irrigants is laser activated irrigation (LAI) or photon-initiated acoustic streaming (PIPS). The aim of this presentation is to demonstrate how the interaction with endodontic biofilms, smear layer and debris accumulated during root canal preparation differs between ultrasonically activated irrigation (UAI) (previously referred to as PUI – passive ultrasonic irrigation) and LAI. As LAI is associated with vigorous irrigant dynamics, questions have been raised about its safety. Therefore, the topic of evaluation of eventual extrusion during both LAI and PUI/UAI is also addressed.Methods: The information presented is supported by present-day research and up-to-date scientific data i.e. findings in the peer-reviewed literature with impact factor, and data coming from investigations conducted at the Ghent Dental Laser Centre (debris removal, interaction with endodontic biofilm, registration, and visualization with a high speed camera, extrusion studies).Results: It appears that activation of endodontic irrigants with Erbium lasers can be more efficient as well as more effective than with ultrasound, and this on both level of interaction with debris and smear layer. Mechanical removal of the biofilm is also more pronounced with Erbium LAI. While the agitation of irrigants during ultrasonic activation is the result of a sinusoidal movement of files or wires and acoustic streaming around the instrument, fluid motion during LAI is induced by specific cavitation phenomena thanks to the absorption of the Erbium laser light in the aqueous endodontic irrigation solutions. LAI has evolved over the last 10 years. Originally the fiber was positioned in the apical third of the prepared root canal. Long pulses up to 200 ms and energy up to 250 mJ were used. Later on, the fiber was positioned in the coronal third or in the orifice, which was possible due to a better understanding of the cavitation phenomenon and changes in applied power density. Today LAI is performed with the fiber in the pulp chamber according to the PIPS approach: short pulses of 50 μs and low energy i.e.20 to 40 mJ are used.Conclusion: PIPS activation results in more negative bacterial samples and less apical biofilm left when compared to UAI, more debris is removed and a more profound cleaning and disinfection of the isthmus is obtained.

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APA: Copy

DE MOOR, ROELAND J.G.. (2018). VALUE ADDED CLEANING AND DISINFECTION OF THE ROOT CANAL: ULTRASOUND VERSUS LASER-ACTIVATED IRRIGATION AND PIPS (PHOTON-INDUCED PHOTOACOUSTIC STREAMING). JOURNAL OF LASERS IN MEDICAL SCIENCES, 9(SUPPL A (9TH WORLD CONGRESS OF SOLA)), 6-6. SID. https://sid.ir/paper/326101/en

Vancouver: Copy

DE MOOR ROELAND J.G.. VALUE ADDED CLEANING AND DISINFECTION OF THE ROOT CANAL: ULTRASOUND VERSUS LASER-ACTIVATED IRRIGATION AND PIPS (PHOTON-INDUCED PHOTOACOUSTIC STREAMING). JOURNAL OF LASERS IN MEDICAL SCIENCES[Internet]. 2018;9(SUPPL A (9TH WORLD CONGRESS OF SOLA)):6-6. Available from: https://sid.ir/paper/326101/en

IEEE: Copy

ROELAND J.G. DE MOOR, “VALUE ADDED CLEANING AND DISINFECTION OF THE ROOT CANAL: ULTRASOUND VERSUS LASER-ACTIVATED IRRIGATION AND PIPS (PHOTON-INDUCED PHOTOACOUSTIC STREAMING),” JOURNAL OF LASERS IN MEDICAL SCIENCES, vol. 9, no. SUPPL A (9TH WORLD CONGRESS OF SOLA), pp. 6–6, 2018, [Online]. Available: https://sid.ir/paper/326101/en

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