Journal of Oral Science Research ›› 2018, Vol. 34 ›› Issue (2): 117-120.DOI: 10.13701/j.cnki.kqyxyj.2018.02.003

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Effectiveness of XP-endo Finisher on Biofilm Removal from Oval Root Canals

BAO Ping-ping1,SHEN Jing1, LI Meng-ci1,FAN Ming-wen2*   

  1. 1. Department of Endodontics, Tianjin Stomatological Hospital, Tianjin 300041, China;
    2. Department of Endodontics, The First Stomatological Hospital of Wuhan, Wuhan 430000,China.
  • Received:2017-10-26 Online:2018-02-28 Published:2018-02-26

Abstract: Objective: To compare the effectiveness of XP-endo Finisher (XPF) in biofilm removal with passive ultrasonic irrigation (PUI) technique applied respectively or combinational using an infected oval-canal tooth model. Methods: Fifty-four extracted human premolars with single oval canals were selected. After growing multispecies biofilm for 4 weeks, 6 teeth were selected randomly as controls and observed under scanning electron microscopy (SEM)to confirm the biofilm growth. The other teeth were instrumented using Vortex Blue files to size 40/.06 and then assigned to 4 groups (n=12) according to the irrigation protocol: CNI, PUI, XPF, and PUI+XPF. 3% NaOCl was used as the irritant. SEM images were taken from the apical, middle, and coronal third of the canal surface to evaluate the amount of residual biofilm. Results: The ranking of the effectiveness of biofilm removal from the most to the least was: PUI+XPF, XPF, PUI and CNI with no statistical difference between PUI+XPF and XPF (P>0.05). Conclusion: XPF was more effective in removing biofilm from oval root canals than PUI and CNI. The combination with PUI could slightly enhance the efficacy with no significant difference.

Key words: Biofilm, Root canal irrigation, Ultrasonic, XP-endo Finisher

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