Irrigation of the Root Canal System by Laser Activation (LAI): PIPS Photon-Induced Photoacoustic Streaming


Root canal debridement and disinfection control are two of the main steps in root canal therapy. Control of bacterial load from an infected root canal before obturation is necessary to have a more predictable outcome. Bacteria will be present as biofilm colonies and will be responsible to establish disease and infection. Inside the root canal, it will be attached to the canal walls, well within dentinal tubules, fins, lateral canals, and foramina. In a different study, Nair found the presence of bacteria within these areas such as the root canal, fins, webs, isthmuses, etc., even after cleaning, shaping, and filling of the root canal system. When bacteria colonize the root canal system, it becomes very hard to effectively remove it from these inaccessible areas.

During root canal therapy, the endodontist faces all types of complications, one of which is the root canal morphology. There are several studies where several authors have verified the complexity of the root canal system. Root canals can present difficulty with accessibility, and in some areas of the root canal system, accessibility by instrumentation, irrigation, or even intra-canal medication is not possible. Because of this inaccessibility, different irrigation techniques have been proposed in order to obtain better disinfection rates.


Root canal debridement Photon-induced photoacoustic streaming PIPS PIPS protocol Irrigation Root canal system 


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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.Department of EndodonticsUniversity of Texas Health Science Center at Houston, School of DentistryHoustonUSA

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