Sonochemical and high-speed optical characterization of cavitation generated by an ultrasonically oscillating dental file in root canal models

R.G. Macedo, B. Verhaagen, David Fernandez Rivas, Johannes G.E. Gardeniers, L.W.M. van der Sluis, P.R. Wesselink, Michel Versluis

Research output: Contribution to journalArticleAcademicpeer-review

25 Citations (Scopus)

Abstract

Ultrasonically Activated Irrigation makes use of an ultrasonically oscillating file in order to improve the cleaning of the root canal during a root canal treatment. Cavitation has been associated with these oscillating files, but the nature and characteristics of the cavitating bubbles were not yet fully elucidated. Using sensitive equipment, the sonoluminescence (SL) and sonochemiluminescence (SCL) around these files have been measured in this study, showing that cavitation occurs even at very low power settings. Luminol photography and high-speed visualizations provided information on the spatial and temporal distribution of the cavitation bubbles. A large bubble cloud was observed at the tip of the files, but this was found not to contribute to SCL. Rather, smaller, individual bubbles observed at antinodes of the oscillating file with a smaller amplitude were leading to SCL. Confinements of the size of bovine and human root canals increased the amount of SL and SCL. The root canal models also showed the occurrence of air entrainment, resulting in the generation of stable bubbles, and of droplets, near the air–liquid interface and leading eventually to a loss of the liquid.
Original languageEnglish
Pages (from-to)324-335
Number of pages12
JournalUltrasonics sonochemistry
Volume21
Issue number1
DOIs
Publication statusPublished - 2014

Fingerprint

canals
Dental Pulp Cavity
cavitation
Canals
cavitation flow
files
Cavitation
canal
bubble
Tooth
bubbles
Sonoluminescence
Bubbles (in fluids)
high speed
sonoluminescence
Luminol
Air entrainment
Photography
antinodes
irrigation

Keywords

  • METIS-297498
  • IR-87188

Cite this

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title = "Sonochemical and high-speed optical characterization of cavitation generated by an ultrasonically oscillating dental file in root canal models",
abstract = "Ultrasonically Activated Irrigation makes use of an ultrasonically oscillating file in order to improve the cleaning of the root canal during a root canal treatment. Cavitation has been associated with these oscillating files, but the nature and characteristics of the cavitating bubbles were not yet fully elucidated. Using sensitive equipment, the sonoluminescence (SL) and sonochemiluminescence (SCL) around these files have been measured in this study, showing that cavitation occurs even at very low power settings. Luminol photography and high-speed visualizations provided information on the spatial and temporal distribution of the cavitation bubbles. A large bubble cloud was observed at the tip of the files, but this was found not to contribute to SCL. Rather, smaller, individual bubbles observed at antinodes of the oscillating file with a smaller amplitude were leading to SCL. Confinements of the size of bovine and human root canals increased the amount of SL and SCL. The root canal models also showed the occurrence of air entrainment, resulting in the generation of stable bubbles, and of droplets, near the air–liquid interface and leading eventually to a loss of the liquid.",
keywords = "METIS-297498, IR-87188",
author = "R.G. Macedo and B. Verhaagen and {Fernandez Rivas}, David and Gardeniers, {Johannes G.E.} and {van der Sluis}, L.W.M. and P.R. Wesselink and Michel Versluis",
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Sonochemical and high-speed optical characterization of cavitation generated by an ultrasonically oscillating dental file in root canal models. / Macedo, R.G.; Verhaagen, B.; Fernandez Rivas, David; Gardeniers, Johannes G.E.; van der Sluis, L.W.M.; Wesselink, P.R.; Versluis, Michel.

In: Ultrasonics sonochemistry, Vol. 21, No. 1, 2014, p. 324-335.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Sonochemical and high-speed optical characterization of cavitation generated by an ultrasonically oscillating dental file in root canal models

AU - Macedo, R.G.

AU - Verhaagen, B.

AU - Fernandez Rivas, David

AU - Gardeniers, Johannes G.E.

AU - van der Sluis, L.W.M.

AU - Wesselink, P.R.

AU - Versluis, Michel

N1 - online in 2013, maar jaar uitgave 2014.

PY - 2014

Y1 - 2014

N2 - Ultrasonically Activated Irrigation makes use of an ultrasonically oscillating file in order to improve the cleaning of the root canal during a root canal treatment. Cavitation has been associated with these oscillating files, but the nature and characteristics of the cavitating bubbles were not yet fully elucidated. Using sensitive equipment, the sonoluminescence (SL) and sonochemiluminescence (SCL) around these files have been measured in this study, showing that cavitation occurs even at very low power settings. Luminol photography and high-speed visualizations provided information on the spatial and temporal distribution of the cavitation bubbles. A large bubble cloud was observed at the tip of the files, but this was found not to contribute to SCL. Rather, smaller, individual bubbles observed at antinodes of the oscillating file with a smaller amplitude were leading to SCL. Confinements of the size of bovine and human root canals increased the amount of SL and SCL. The root canal models also showed the occurrence of air entrainment, resulting in the generation of stable bubbles, and of droplets, near the air–liquid interface and leading eventually to a loss of the liquid.

AB - Ultrasonically Activated Irrigation makes use of an ultrasonically oscillating file in order to improve the cleaning of the root canal during a root canal treatment. Cavitation has been associated with these oscillating files, but the nature and characteristics of the cavitating bubbles were not yet fully elucidated. Using sensitive equipment, the sonoluminescence (SL) and sonochemiluminescence (SCL) around these files have been measured in this study, showing that cavitation occurs even at very low power settings. Luminol photography and high-speed visualizations provided information on the spatial and temporal distribution of the cavitation bubbles. A large bubble cloud was observed at the tip of the files, but this was found not to contribute to SCL. Rather, smaller, individual bubbles observed at antinodes of the oscillating file with a smaller amplitude were leading to SCL. Confinements of the size of bovine and human root canals increased the amount of SL and SCL. The root canal models also showed the occurrence of air entrainment, resulting in the generation of stable bubbles, and of droplets, near the air–liquid interface and leading eventually to a loss of the liquid.

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