Bulletin of the American Physical Society
76th Annual Meeting of the Division of Fluid Dynamics
Sunday–Tuesday, November 19–21, 2023; Washington, DC
Session A07: Biofluids: General II
8:00 AM–9:57 AM,
Sunday, November 19, 2023
Room: 103A
Chair: Chris Roh, Cornell University
Abstract: A07.00007 : Acoustic streaming during root canal irrigation*
9:18 AM–9:31 AM
Presenter:
Anastasios Koulogiannis
(University College London)
Authors:
Anastasios Koulogiannis
(University College London)
Panagiota Angeli
(University College London)
Stavroula Balabani
(University College London)
Collaborations:
Department of Chemistry, University of Birmingham,
School of Dentistry, University of Birmingham,
Bundesanstalt für Materialforschung und -prüfung (BAM)
An ultrasonic instrument with an endodontic file was used as the ultrasound source. The flow field in an unconfined space was investigated first by means of 4D-Particle Tracking Velocimetry (PTV). To study the effect of confinement, root canal phantoms and dentinal tubule arrays were fabricated using 3D printing and soft lithography. The flow field therein was determined by means of Particle Image Velocimetry (PIV).
The ultrasonic instrument generates two turbulent jets. When the flow is confined, these jets impact on the walls of the root canal leading to high velocities that facilitates irrigant penetration inside the dentinal tubules. The acoustic flow field is highly dependent on the power of the instrument (amplitude of oscillation of the file) but less so on the insertion depth of the file inside the root canal. The oscillatory character of the flow can lead to instantaneous values that are much higher than the time-averaged ones highlighting the potential of ultrasonic irrigation for optimal biofilm disruption.
*This study was supported by the EPSRC research project SONATA (EP/V028626/1).
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700