ArticleJournal of conservative dentistry and endodontics2025
Comparative evaluation of irrigant penetration up to working length and into lateral canals using side-vented needle, passive ultrasonic, and COXO's continuous rotary canal cleaning system.
Article in Journal of conservative dentistry and endodontics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Effect of preendodontic build-up on irrigant penetration in extracted single-rooted premolars: AnJournal of conservative dentistry and endodontics · 2026Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Effective irrigation is essential for successful root canal treatment, particularly in lateral canals and apical regions where mechanical instrumentation is limited. Conventional syringe irrigation provides inadequate irrigant replacement, while passive ultrasonic irrigation (PUI) enhances penetration but remains technique sensitive. The recently introduced Continuous Rotary Canal Cleaning (C-RCC) and Suction system integrates irrigant delivery, suction, and rotary motion, potentially overcoming these limitations. Aim: The current laboratory study evaluated three irrigation techniques: syringe delivery with a side-vented needle (SVS), ultrasonically activated irrigation (PUI), and a COXO C-RCC and suction system, based on their ability to deliver irrigants to the working length and simulated lateral canals. Materials and Methods: Sixty extracted human teeth were prepared up to size F3 with ProTaper rotary files. Simulated lateral canals were created at 2, 4, and 6 mm from the apex after controlled decalcification. Samples were cleared and irrigated with a contrast solution of India ink and NaOCl. After randomization, teeth were divided into three groups: Group I - SVS with TruNatomy side-vented needle; Group II - PUI with U-files; and Group III - C-RCC system. Irrigant penetration to working length and lateral canals was evaluated using a stereomicroscope. Results: Chi-square analysis ( Conclusion: The C-RCC system was the most effective for irrigant penetration and disinfection. PUI also enhanced lateral canal cleaning compared with syringe irrigation. Continuous flow and active agitation significantly improved irrigation efficacy.
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