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Effect of PIPS technique at different power settings on irrigating solution extrusion
Hakan Arslan1, Merve Akcay, Hüseyin Ertas
1Department of Endodontics, Faculty of Dentistry, Atatürk University, Erzurum, 25640, Turkey, dt_hakan82@hotmail.com.
Lasers in Medical Science
|July 20, 2014
Summary
Photon-induced photoacoustic streaming (PIPS) at 0.3W and 0.9W showed similar irrigant extrusion to conventional methods. This endodontic irrigation technique did not significantly increase solution leakage compared to ultrasonic or needle irrigation.
Area of Science:
- Endodontics
- Dental materials science
- Biomedical engineering
Background:
- Effective root canal irrigation is crucial for disinfection and debris removal in endodontic therapy.
- Photon-induced photoacoustic streaming (PIPS) is an emerging technique utilizing laser energy to enhance irrigant flow.
- Understanding irrigant extrusion is vital to prevent damage to periapical tissues.
Purpose of the Study:
- To evaluate the effect of Photon-Induced Photoacoustic Streaming (PIPS) at varying power settings (0.3W and 0.9W) on apical extrusion of irrigating solution.
- To compare PIPS irrigant extrusion with conventional needle irrigation and continuous ultrasonic irrigation.
- To assess the safety and efficacy of PIPS in managing irrigant flow during root canal procedures.
Main Methods:
- 64 extracted mandibular premolars underwent root canal preparation to a #30 file.
- Teeth were divided into four irrigation groups: conventional needle, continuous ultrasonic, 0.3W PIPS, and 0.9W PIPS.
- Apical irrigant extrusion was quantified by measuring the extruded solution's net weight using a modified model.
Main Results:
- The 0.9W PIPS group exhibited the highest volume of extruded irrigating solution, while the ultrasonic group showed the least.
- Statistical analysis (Kruskal-Wallis, 95% confidence level) revealed no significant difference in irrigant extrusion between the tested groups (P > 0.05).
- PIPS at both 0.3W and 0.9W demonstrated comparable solution extrusion to conventional and ultrasonic irrigation methods.
Conclusions:
- Photon-Induced Photoacoustic Streaming (PIPS) at 0.3W and 0.9W does not significantly increase apical irrigant extrusion compared to conventional or ultrasonic irrigation.
- The PIPS technique appears to manage irrigant flow similarly to established methods, suggesting potential for safe clinical application.
- Further research may explore PIPS's efficacy in debris removal and biofilm disruption at different power settings and parameters.

