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Updated: Jan 25, 2026

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Minimum Burning Pressures of Water-based Emulsion Explosives
Published on: October 31, 2017
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[Laser treatment in root canals. Effective by explosive vapour bubbles]
1Universitair Medisch Centrum, Utrecht.
Nederlands Tijdschrift Voor Tandheelkunde
|August 14, 2009
Summary
Pulsed infrared lasers, like Er:YAG and Er,Cr:YSGG, effectively irrigate root canals. Their mechanism involves liquid flow, turbulence, and vapor bubbles, aiding cleansing and disinfection.
Area of Science:
- Dentistry
- Biomedical Engineering
- Laser Physics
Context:
- Pulsed infrared lasers (Er:YAG, Er,Cr:YSGG) have been available since the late 1980s.
- These lasers show potential for endodontic applications.
- Previous studies demonstrated effective in vitro root canal irrigation with these lasers.
Purpose:
- To elucidate the working mechanism of pulsed infrared lasers during root canal irrigation.
- To investigate the interaction between laser energy, irrigant solutions, and root canal morphology.
- To understand the physical phenomena contributing to laser-assisted endodontic irrigation.
Summary:
- A high-speed imaging technique was employed to study the mechanism of pulsed infrared lasers in a simulated root canal model.
- The model was irrigated with water or a 5% sodium hypochlorite (NaOCl) solution.
- The laser-activated irrigation process was attributed to liquid flow, turbulence, and cavitation effects from vapor bubbles.
Impact:
- The study clarifies how Er:YAG and Er,Cr:YSGG lasers enhance root canal cleansing and disinfection.
- Understanding the mechanism can optimize laser parameters for improved endodontic treatment outcomes.
- This research provides a foundation for developing advanced laser-assisted endodontic irrigation techniques.
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