Cavitation bubbles induced by Erbium lasers: Implications for dentistry

Marja Verleng, Rudolf Verdaasdonk*, Albert Van Der Veen, Vladimir Lemberg, Dmitri Boutoussov

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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With new fiber systems available for 3 μm, Erbium lasers become more interesting for precise tissue ablation in a water environment enabling new application in e.g. dentistry. The dynamics of explosive bubble formation was investigated at 2.78 μm (Er,Cr;YSGG) and 2.94 μm (Er:YAG), in relation to energy (10-50 mJ), pulse length (20-150 μs) and fiber tip shape (flat or taper). The dynamics of exploding and imploding vapor bubbles were captured with high speed imaging (10 - 300 μs range). Increasing the pulse length and energy, the vapor bubble became more elongated with an opaque surface for flat tip fibers. Tapered fibers produced spherical vapor bubbles with an optically transparent surface expected to be more forceful for creating mechanical effects in both hard and soft tissues. There was no significant difference between bubbles formed at 2.78 μm (Er,Cr;YSGG) and 2.94 μm (Er:YAG).

Original languageEnglish
Title of host publicationLasers in Dentistry XX
ISBN (Print)9780819498427
Publication statusPublished - 1 Jan 2014
Externally publishedYes
EventLasers in Dentistry XX 2014 - San Francisco, United States
Duration: 2 Feb 20142 Feb 2014
Conference number: 20

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
ISSN (Print)1605-7422


ConferenceLasers in Dentistry XX 2014
Country/TerritoryUnited States
CitySan Francisco


  • Cavitation
  • Cr
  • Er
  • Er:YAG
  • Erbium laser
  • Explosive vapor bubble
  • High speed imaging
  • YSGG


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