In vitro comparison of passive and continuous ultrasonic irrigation in simulated lateral canals of extracted teeth

Pablo Castelo-Baz, Benjamín Martín-Biedma, Giuseppe Cantatore, Manuel Ruíz-Piñón, José Bahillo, Berta Rivas-Mundiña, Purificación Varela-Patiño

Research output: Contribution to journalArticle

Abstract

Introduction: Complete endodontic system disinfection requires the removal of vital and necrotic pulp tissue, microorganisms, and toxins. The purpose of this study was to compare the effects of 2 ultrasonic irrigation techniques on the penetration of sodium hypochlorite into the main canal and simulated lateral canals of extracted teeth. Methods: Two simulated lateral canals each were created 2, 4, and 6 mm from the working length in 60 single-rooted teeth (6 canals/tooth, n = 360). To resemble the clinical situation, a closed system was created in each tooth. The teeth were randomly assigned to 3 experimental irrigation groups: group 1 (n = 20), positive pressure irrigation (PPI); group 2 (n = 20), passive ultrasonic irrigation (PUI); and group 3 (n = 20), continuous ultrasonic irrigation (CUI). Samples were evaluated by direct observation of still images recorded under a dental operating microscope. To examine irrigating solution penetration, 20% Chinese ink (Sanford Rotring GmbH, Hamburg, Germany) was added to a 5% sodium hypochlorite solution and delivered into the root canals. Results: The results showed a significantly higher (P

Original languageEnglish
Pages (from-to)688-691
Number of pages4
JournalJournal of Endodontics
Volume38
Issue number5
DOIs
Publication statusPublished - May 2012

Keywords

  • Continuous ultrasonic irrigation
  • passive ultrasonic irrigation
  • positive pressure irrigation
  • root canal irrigation
  • vapor lock

ASJC Scopus subject areas

  • Dentistry(all)

Fingerprint Dive into the research topics of 'In vitro comparison of passive and continuous ultrasonic irrigation in simulated lateral canals of extracted teeth'. Together they form a unique fingerprint.

  • Cite this

    Castelo-Baz, P., Martín-Biedma, B., Cantatore, G., Ruíz-Piñón, M., Bahillo, J., Rivas-Mundiña, B., & Varela-Patiño, P. (2012). In vitro comparison of passive and continuous ultrasonic irrigation in simulated lateral canals of extracted teeth. Journal of Endodontics, 38(5), 688-691. https://doi.org/10.1016/j.joen.2011.12.032