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http://dx.doi.org/10.5395/JKACD.2006.31.2.119

The effect of MTAD on the apical leakage of obturated root canals: an electrochemical study  

Park, Dong-Sung (Department of Conservative Dentistry, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Publication Information
Restorative Dentistry and Endodontics / v.31, no.2, 2006 , pp. 119-124 More about this Journal
Abstract
The purpose of this study was to evaluate the effect of newly developed endodontic root canal cleanser (MTAD) on the apical leakage of obturated root canal using an electrochemical method. Canals of 60 extracted single-rooted human teeth were prepared by using a crown-down technique with rotary nickel-titanium files. In Group 1 (positive control group) and 2 (negative centre) group), 5.25% NaOCl was used as a canal irrigant and no canal wall treatment was done. In group 3 only 5.25% NaOCl were used as canal irrigant, canal wall treatment and final rinse. In group 4, specimens were irrigated with 5.25% NaOCl, treated with 5 ml of 17% EDTA for 5 minutes and final rinsed with 5.25% NaOCl Specimens of group 5 were irrigated with 1 3% NaOCl and treated with 5 ml of MTAD for 5 minutes. All root canals are dried with paper points and obtuated with gutta-percha and AH plus as a sealer using a continuous wave of condensation technique except in the group 1. The electrical resistance between the standard and experimental electrodes in canals was measured over a period of 10 days. Rising of apical leakage with time was observed for all the groups. Group 4 and 5 showed lower apical leakage than group 3 but differences between the group 3, 4 and 5 were no statistical significance at any measurement time.
Keywords
Smear layer; Electrochemical method; Apical leakage; Root canal irrigant;
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1 Karagdz-Kucukay I. Bayirli O. An apical leakage study in the presence and absence of the smear layer. Int Endod J 27(2) :87-93, 1994   DOI   ScienceOn
2 Madison S, Krell KV. Comparison of ethylenediamine tetracetic acid and sodium hypochlorite on the apical seal of endodontically treated teeth. J Endodon 10(10) :499-503, 1984   DOI   ScienceOn
3 Timpawat S, Vongsavan N, Messer HH. Effect of removal of the smear layer on apical microleakage. J Endodon 27(5):351-353, 2001   DOI   ScienceOn
4 Torabinejad M, Khademi AA, Babagoli J, Cho Y, Johnson WB, Bozhilov K, Kim J, Shabahang S. A new solution for the removal of the smear layer. J Endodon 29(3):170-175, 2003   DOI   ScienceOn
5 McComb D, Smith DC. A preliminary scanning electron microscopic study of root canals after endodontic procedures. J Endodon 1(7):238-242, 1975   DOI   ScienceOn
6 Taylor JK, Jeansonne BO, Lemon RR. Coronal leakage: Effects of smear layer, obturation technique, and sealer. J Endodon 23(8):508-512, 1997   DOI   ScienceOn
7 Gettleman BH. Messer HH, ElDeeb ME. Adhesion of sealer cements to dentin with and without the smear layer. J Endodon 17(1): 15-20, 1991   DOI   ScienceOn
8 Yamada RS, Armas A, Goldman M, Lin PS. A scanning electron microscopic comparison of a high volume flush with several irrigating solutions. Part 3. J Endodon 9(4):137-142, 1983   DOI   ScienceOn
9 Economides N. Liolios E, Kolokuris I. Beltes P. Longterm evaluation of the influence of smear layer removal on the sealing ability of different sealers. J Endodon 25(2):123-25, 1999   DOI   ScienceOn
10 Baumgartner JC, Brown CM, Mader CL, Peters DD, Shulman JD. A scanning electron microscopic evaluation of root canal debridement using saline, sodium hypochlorite and citric acid. J Endodon 10(1): 525-531. 1984   DOI   ScienceOn
11 Delivanis PD, Chapman KA. Comaprison and reliability of techniques for measuring leakage and marginal penetrations. Oral Surg 53(4) :410-416, 1982   DOI   ScienceOn
12 Torabinejad M, Handysides R, Khademi A. Bakland LK. Clinical implications of the smear layer in endodontics: a review. Oral Surg Oral Med Oral Path Oral Radiol Endo 94(6) :658-666, 2002   DOI   ScienceOn
13 DS Park, HJ Lee, HM Yoo and TS Oh. Effect of N d: YAG laser irradiation on the apical leakage of obturated root canals: an electrochemical study. Int Endodon J, 34(4): 318-321. 2001   DOI   ScienceOn
14 Saunders WP, Saunders EM. Influence of smear layer and the coronal leakage of thermafil and laterally condensed gutta-percha root fillings with a glass ionomer sealer. J Endodon 20(4): 155-158, 1994   DOI   ScienceOn
15 Baumgartner JC, Mader CL.A scanning electron microscopic evaluation of four root canal irrigation regimens. J Endodon 13(4):147-157, 1987   DOI   ScienceOn
16 Vassiliadis L, Liolios E, Kouvas V, Economides N. Effect of smear layer on coronal microleakage. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 82(3): 315-320, 1996   DOI   ScienceOn
17 Chailertvanitkul P, Saunders WP, Mackenzie D. The effect of smear layer on microbial coronal leakage of gutta-percha root fillings. Int Endod J 29(4) :242-248, 1996   DOI   ScienceOn
18 SaundersWP, Saunders EM. The effect of smear layer upon the coronal leakage of gutta percha root filling and a glass ionomer sealer. Int Endod J 25(5) :245-249, 1992   DOI
19 Evans JT, Simon JHS. Evaluation of the apical seal produced by injected thermoplasticized gutta-percha in the absence of smear layer and root canal sealer. J Endodon 12(3): 101-107, 1986   DOI   ScienceOn
20 Cergneux M. Ciucchi B. Dietschi JM, Holz J. The influence of the smear layer on the sealing ability of canal obturation. Int Endod J 20(5): 228-232, 1987   DOI
21 Kennedy WA, Walker WA, Gough RW. Smear layer removal effects on apical leakage. J Endodon 12(1): 21-27, 1986   DOI   ScienceOn
22 Torabinejad M, Cho Y, Khademi AA, Bakland LK, Shabahang S. The effect of various concentrations of sodium hypochlorite on the ability of MTAD to remove smear layer. J Endodon 29(4) :233-239, 2003   DOI   ScienceOn
23 Timpawat S, Sripanaratanakul S. Apical sealing ability of glass ionomer sealer with and without smear layer. J Endodon 24(5): 343-345, 1998   DOI   ScienceOn