Laser-induced agitation and cavitation from proprietary honeycomb tips for endodontic applications

George, Roy, Chan, Keith and Walsh, Laurence James (2014) Laser-induced agitation and cavitation from proprietary honeycomb tips for endodontic applications. Lasers in Medical Science, 30 4: 1203-1208. doi:10.1007/s10103-014-1539-y


Author George, Roy
Chan, Keith
Walsh, Laurence James
Title Laser-induced agitation and cavitation from proprietary honeycomb tips for endodontic applications
Journal name Lasers in Medical Science   Check publisher's open access policy
ISSN 0268-8921
1435-604X
Publication date 2014-03-20
Year available 2014
Sub-type Article (original research)
DOI 10.1007/s10103-014-1539-y
Open Access Status
Volume 30
Issue 4
Start page 1203
End page 1208
Total pages 6
Place of publication London, United Kingdom
Publisher Springer U K
Collection year 2015
Language eng
Abstract Cavitation and agitation generated by lasers in fluid-filled root canals create fluid movement and shear stresses along the root canals walls, enhancing removal of the smear layer and biofilm. When used with sodium hypochlorite and EDTA, laser activation of aqueous fluids can increase the efficiency of debridement and disinfection of root canals. However, the use of forward-firing laser fibers with such solutions poses a risk of driving fluid past the root apex, which could cause postoperative complications. The purpose of this study was to evaluate the mechanism of fluid agitation caused by a novel honeycomb tip. Glass capillary tubes filled with distilled water were used to replicate single-tooth root canals. A 980 nm pulsed diode laser was used with 200 μm diameter plain tips, tube-etched conical tips, and honeycomb tips. To record fluid movements, the tubes were backlit and imaged using a digital camera attached to a microscope. The honeycomb tips generated agitation with fluid movement directed onto the walls, while both the conventional plain fibers and the conical tips created fluid movement largely in a forward direction. The use of honeycomb tips alters the pattern of fluid agitation, and this laterally directed effect might lower the risk of fluid extrusion beyond the apex.
Keyword Cavitation
Honeycomb tips
Modified laser fibers
Radial firing tips
Root canals
980 nm lasers
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online ahead of print 20 March 2014.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
School of Dentistry Publications
 
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