Value added cleaning and disinfection of the root canal: laser-activated irrigation and laser-induced photoporation

Roeland J. G. De Moor; Maarten A. Meire

doi:10.1117/12.2189552

22 March 2016 Value added cleaning and disinfection of the root canal: laser-activated irrigation and laser-induced photoporation

Roeland J. G. De Moor, Maarten A. Meire

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Proceedings Volume 9670, Sixth International Conference on Lasers in Medicine; 967005 (2016) https://doi.org/10.1117/12.2189552
Event: Sixth International Conference on Lasers in Medicine, 2015, Bucharest, Romania

Abstract

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 photoninitiated acoustic streaming. Based on present-day research it appears that LAI (especially with Erbium lasers) can be more efficient for debris removal out of root canals and interaction with the endodontic biofilms thanks to the induction of specific cavitation phenomena and acoustic streaming. Other wavelengths are now explored to be used for LAI. Another way to interact with biofilms is to rely on laser-induced photoporation in combination with gold nanoparticles ( AuNPs). The latter is an alternative physical method for delivering macromolecules in cells. Nanosized membrane pores can be created upon pulsed laser illumination. Depending on the laser energy, pores are created through either direct heating of the AuNPs or by vapour nanobubbles that can emerge around the AuNPs.

Citation Download Citation

Roeland J. G. De Moor and Maarten A. Meire "Value added cleaning and disinfection of the root canal: laser-activated irrigation and laser-induced photoporation", Proc. SPIE 9670, Sixth International Conference on Lasers in Medicine, 967005 (22 March 2016); https://doi.org/10.1117/12.2189552

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KEYWORDS

Laser dentistry

Erbium lasers

Ultrasonics

Cavitation

Fiber lasers

Nanoparticles

Gold

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