The aim of this in vitro study was to evaluate the cleaning efficacy of various irrigation methods in the mandibular mesial roots. The forty five mesial root canals were shaped by Profile .06 instruments to apical size #30 and irrigated with 5 ml of 3.5% NaOCl. The teeth were divided into 3 groups and irrigated finally for 1 minute; Group 1: syringe irrigation, Group 2: ultrasonic irrigation, Group 3: RinsEndo irrigation.

After histological processing, the cross sections of apical 1, 3, and 5 mm level were examined with an optical microscope. The cleanliness values of canals and isthmuses were calculated and analyzed by Mann-Whitney U test.

There were no significant differences in both canal and isthmus cleanliness between syringe irrigation and ultrasonic irrigation except 5 mm level of isthmus.

Citations

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• Multivariate analysis of the cleaning efficacy of different final irrigation techniques in the canal and isthmus of mandibular posterior teeth
  Yeon-Jee Yoo, WooCheol Lee, Hyeon-Cheol Kim, Won-Jun Shon, Seung-Ho Baek
  Restorative Dentistry & Endodontics.2013; 38(3): 154.     CrossRef
• Review of root canal irrigant delivery techniques and devices
  Yeon-Jee Yoo, Su-Jeong Shin, Seung-Ho Baek
  Journal of Korean Academy of Conservative Dentistry.2011; 36(3): 180.     CrossRef

The aim of this study was to evaluate the retrievability of Resilon as a root canal filling material. Twenty-seven human single-rooted extracted teeth were instrumented utilizing a crown down technique with Gates-Glidden burs and ProFile system. In group1 (n = 12) canals were obturated with gutta percha and AH-26 plus sealer using a continuous wave technique and backfilled. In group 2 (n = 15) Resilon was used as a filling material. Then teeth were sealed and kept in 37℃ and 100% humidity for 7 days. For retreatment, the samples were re-accessed and filling material was removed using Gates-Glidden burs and ProFiles. Teeth were sectioned longitudinally to compare the general cleanliness and amount of debris (× 75) using SEM. Chi-square test was used (α = 0.05) to analyze the data. The total time required for removal of filling materials was expressed as mean ± SD (min) and analyzed by the Student t-test (α = 0.05). Required time for retreatment was 3.25 ± 0.32 minutes for gutta percha/AH 26 plus sealer and 3.05 ± 0.34 minutes for Resilon. There was no statistically significant difference between the two experimental groups. There was no significant difference between the groups in the cleanliness of the root canal wall. This study showed that Resilon was effectively removed by Gates-Glidden burs and ProFiles.

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• An in vitro evaluation of effectiveness of Xylene, Thyme oil and Orange oil in dissolving three different endodontic sealers
  N Aiswarya, TN Girish, KC Ponnappa
  Journal of Conservative Dentistry.2023; 26(3): 305.     CrossRef
• A Comparative Evaluation of Two Commonly Used GP Solvents on Different Epoxy Resin-based Sealers: An In Vitro Study
  Sakshi Tyagi, Ekta Choudhary, Rajat Chauhan, Ashish Choudhary
  International Journal of Clinical Pediatric Dentistry.2020; 13(1): 35.     CrossRef
• Evaluation of softening ability of Xylene & Endosolv-R on three different epoxy resin based sealers within 1 to 2 minutes - anin vitrostudy
  Pratima Ramakrishna Shenoi, Gautam Pyarelal Badole, Rajiv Tarachand Khode
  Restorative Dentistry & Endodontics.2014; 39(1): 17.     CrossRef
• Microleakage of resilon by methacrylate-based sealer and self-adhesive resin cement
  Sun-Young Ham, Jin-Woo Kim, Hye-Jin Shin, Kyung-Mo Cho, Se-Hee Park
  Journal of Korean Academy of Conservative Dentistry.2008; 33(3): 204.     CrossRef
• Microleakage of resilon: Effects of several self-etching primer
  Jong-Hyeon O, Se-Hee Park, Hye-Jin Shin, Kyung-Mo Cho, Jin-Woo Kim
  Journal of Korean Academy of Conservative Dentistry.2008; 33(2): 133.     CrossRef