Restorative Dentistry and Endodontics

  • 제40권3호
  • /
  • Pages.216-222
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  • 2015
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  • 2234-7658(pISSN)
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  • 2234-7666(eISSN)
대한치과보존학회 (The Korean Academy of Conservative Dentistry)
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Evaluation of the effects of two novel irrigants on intraradicular dentine erosion, debris and smear layer removal

  • 투고 : 2015.03.15
  • 심사 : 2015.04.08
  • 발행 : 2015.08.31
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초록

Objectives: To evaluate the effects of copolymer of acrylic acid and maleic acid (Poly[AA-co-MA]) and calcium hypochlorite ($Ca(OCl)_2$) on root canal dentin using scanning electron microscope (SEM). Materials and Methods: Twenty-four single-rooted teeth were instrumented and the apical and coronal thirds of each root were removed, leaving the 5 mm middle thirds, which were then separated into two pieces longitudinally. The specimens were randomly divided into six groups and subjected to each irrigant for 5 min as follows: G1, $Ca(OCl)_2$; G2, Poly(AA-co-MA); G3, $Ca(OCl)_2$ + Poly(AA-co-MA); G4, sodium hypochlorite (NaOCl); G5, ethylenediaminetetraacetic acid (EDTA); G6, NaOCl+EDTA. The specimens were prepared for SEM evaluation. Smear layer, debris and erosion scores were recorded by two blinded examiners. One image from G3 was analyzed with energy dispersive spectroscopy (EDS) on suspicion of precipitate formation. Data were analyzed using the Kruskal-Wallis and Dunn tests. Results: G1 and G4 showed the presence of debris and smear layer and they were statistically different from G2, G3, G5 and G6 where debris and smear layer were totally removed (p < 0.05). In G1 and G4, erosion evaluation could not be done because of debris and smear layer. G2, G3 and G5 showed no erosion, and there was no significant difference between them. G6 showed severe erosion and was statistically different from G2, G3 and G5 (p < 0.05). EDS microanalysis showed the presence of Na, P, and Ca elements on the surface. Conclusions: Poly(AA-co-MA) is effective in removing the smear layer and debris without causing erosion either alone or with $Ca(OCl)_2$.

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참고문헌

  1. Schilder H. Cleaning and shaping the root canal. Dent Clin North Am 1974;18:269-296.
  2. McComb D, Smith DC. A preliminary scanning electron microscopic study of root canals after endodontic procedures. J Endod 1975;1:238-242. https://doi.org/10.1016/S0099-2399(75)80226-3
  3. Peters OA, Schonenberger K, Laib A. Effects of four Ni-Ti preparation techniques on root canal geometry assessed by micro computed tomography. Int Endod J 2001;34:221-230. https://doi.org/10.1046/j.1365-2591.2001.00373.x
  4. Goldman LB, Goldman M, Kronman JH, Lin PS. The efficacy of several irrigating solutions for endodontics: a scanning electron microscopic study. Oral Surg Oral Med Oral Pathol 1981;52:197-204. https://doi.org/10.1016/0030-4220(81)90319-4
  5. McComb D, Smith DC, Beagrie GS. The results of in vivo endodontic chemomechanical instrumentation-a scanning electron microscopic study. J Br Endod Soc 1976;9:11-18. https://doi.org/10.1111/j.1365-2591.1976.tb01231.x
  6. Gwinnett AJ. Smear layer: morphological considerations. Oper Dent Suppl 1984;3:2-12.
  7. Torabinejad M, Handysides R, Khademi AA, Bakland LK. Clinical implications of the smear layer in endodontics: a review. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2002;94:658-666. https://doi.org/10.1067/moe.2002.128962
  8. Zehnder M. Root canal irrigants. J Endod 2006;32:389-398. https://doi.org/10.1016/j.joen.2005.09.014
  9. Becking AG. Complications in the use of sodium hypochlorite during endodontic treatment. Report of three cases. Oral Surg Oral Med Oral Pathol 1991;71:346-348. https://doi.org/10.1016/0030-4220(91)90313-2
  10. Cobankara FK, Ozkan HB, Terlemez A. Comparison of organic tissue dissolution capacities of sodium hypochlorite and chlorine dioxide. J Endod 2010;36:272-274. https://doi.org/10.1016/j.joen.2009.10.027
  11. Dutta A, Saunders WP. Comparative evaluation of calcium hypochlorite and sodium hypochlorite on softtissue dissolution. J Endod 2012;38:1395-1398. https://doi.org/10.1016/j.joen.2012.06.020
  12. Mader CL, Baumgartner JC, Peters DD. Scanning electron microscopic investigation of the smeared layer on root canal walls. J Endod 1984;10:477-483. https://doi.org/10.1016/S0099-2399(84)80204-6
  13. Sceiza MF, Daniel RL, Santos EM, Jaeger MM. Cytotoxic effects of 10% citric acid and EDTA-T used as root canal irrigants: an in vitro analysis. J Endod 2001;27:741-743. https://doi.org/10.1097/00004770-200112000-00007
  14. Segura-Egea JJ, Jimenez-Rubio A, Rios-Santos JV, Velasco-Ortega E, Calvo-Gutierrez JR. In vitro inhibitory effect of EGTA on macrophage adhesion: endodontic implications. J Endod 2003;29:211-213. https://doi.org/10.1097/00004770-200303000-00012
  15. Baumgartner JC, Mader CL. A scanning electron microscopic evaluation of four root canal irrigation regimens. J Endod 1987;13:147-157. https://doi.org/10.1016/S0099-2399(87)80132-2
  16. Calt S, Serper A. Smear layer removal by EGTA. J Endod 2000;26:459-461. https://doi.org/10.1097/00004770-200008000-00007
  17. Popescu I, Suflet DM, Pelin IM, Chitanu GC. Biomedical applications of maleic anhydride copolymers. Revue Roumaine de Chimie 2011;56:173-188.
  18. Paque F, Barbakow F, Peters OA. Root canal preparation with Endo-Eze AET: changes in root canal shape assessed by micro-computed tomography. Int Endod J 2005;38:456-464. https://doi.org/10.1111/j.1365-2591.2005.00968.x
  19. Hulsmann M, Rummelin C, Schafers F. Root canal cleanliness after preparation with different endodontic handpieces and hand instruments: a comparative SEM investigation. J Endod 1997;23:301-306. https://doi.org/10.1016/S0099-2399(97)80410-4
  20. 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 Endod 2003;29:170-175. https://doi.org/10.1097/00004770-200303000-00002
  21. Goldman M, Goldman LB, Cavaleri R, Bogis J, Lin PS. The efficacy of several endodontic irrigating solutions: a scanning electron microscopic study: Part 2. J Endod 1982;8:487-492. https://doi.org/10.1016/S0099-2399(82)80073-3
  22. Yamada RS, Armas A, Goldman M, Lin PS. A scanning electron microscopic comparison of a high volume final flush with several irrigating solutions: Part 3. J Endod 1983;9:137-142. https://doi.org/10.1016/S0099-2399(83)80032-6
  23. Niu W, Yoshioka T, Kobayashi C, Suda H. A scanning electron microscopic study of dentinal erosion by final irrigation with EDTA and NaOCl solutions. Int Endod J 2002;35:934-939. https://doi.org/10.1046/j.1365-2591.2002.00594.x
  24. Cruz-Filho AM, Sousa-Neto MD, Saquy PC, Pecora JD. Evaluation of the effect of EDTAC, CDTA, and EGTA on radicular dentin microhardness. J Endod 2001;27:183-184. https://doi.org/10.1097/00004770-200103000-00011
  25. Seidberg BH, Schilder H. An evaluation of EDTA in endodontics. Oral Surg Oral Med Oral Pathol 1974;37:609-620. https://doi.org/10.1016/0030-4220(74)90294-1
  26. De-Deus G, Reis C, Paciornik S. Critical appraisal of published smear layer-removal studies: methodological issues. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2011;112:531-543. https://doi.org/10.1016/j.tripleo.2011.01.046
  27. Peters OA, Peters CI, Schonenberger K, Barbakow F. ProTaper rotary root canal preparation: effects of canal anatomy on final shape analysed by micro CT. Int Endod J 2003;36:86-92. https://doi.org/10.1046/j.1365-2591.2003.00626.x
  28. Taha NA, Ozawa T, Messer HH. Comparison of three techniques for preparing oval-shaped root canals. J Endod 2010;36:532-535. https://doi.org/10.1016/j.joen.2009.11.015
  29. Do Prado M, Simao RA, Gomes BP. Evaluation of different irrigation protocols concerning the formation of chemical smear layer. Microsc Res Tech 2013;76:196-200. https://doi.org/10.1002/jemt.22153
  30. Luessen HL, Borchard G, De Boer AG, Junginger HE, Kolter K, Schehlmann V, Sanner A. Use of (meth) acrylic acid/maleic acid copolymers for improving mucosal permeability. USA. US patent 6004575 A. (1999 Dec 21).

피인용 문헌

  1. Regenerating a monoblock to obturate root canalsvia a mineralising strategy vol.8, pp.1, 2018, https://doi.org/10.1038/s41598-018-31643-8
  2. Effect of EDTA, sodium, and calcium hypochlorite on the inorganic component of root canal dentin: A SEM analysis vol.82, pp.2, 2018, https://doi.org/10.1002/jemt.23151
  3. Antibacterial Efficacy of Calcium Hypochlorite with Vibringe Sonic Irrigation System on Enterococcus faecalis : An In Vitro Study vol.2016, pp.None, 2016, https://doi.org/10.1155/2016/8076131