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Year : 2017  |  Volume : 29  |  Issue : 2  |  Page : 156-159

Effect of different methods of agitation on penetration of an endodontic irrigant

Department of Conservative Dentistry and Endodontics, Sardar Patel Post Graduate Institute of Dental and Medical Sciences, Lucknow, Uttar Pradesh, India

Correspondence Address:
Sanjeev Srivastava
Flat No. 310, Ashoka Appartments, 5 Way Lane, Lucknow - 226 001, Uttar Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/endo.endo_40_17

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Objective: To assess the influence of different agitation protocols on the penetration of an endodontic irrigating solution into dentinal tubules. Materials and Methods: Forty extracted single-rooted human teeth were cleaned and shaped using nickel-titanium instrumentation with intermittent irrigation. Final rinse was performed using 5% sodium hypochlorite labeled with 0.2% alizarin red dye. Specimens were randomly assigned to four groups (n = 10), namely, control group (no agitation), K-file group, EndoActivator group, and endosonic group. Specimens were then sectioned at 2, 4, and 6 mm from the apex in 40 μm thick sections and prepared for fluorescence microscopy at ×100. Irrigation penetration was analyzed using Kruskal–Wallis analysis of variance followed by post hoc comparisons. Results: Groups were ranked in the following order: control (no agitation) ~K-file < EndoActivator < endosonic. Conclusion: Ultrasonic agitation increases penetration of endodontic irrigant into the dentinal tubules.

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