International Journal of Clinical Pediatric Dentistry

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VOLUME 13 , ISSUE S1 ( Supplement Issue, 2020 ) > List of Articles

Original Article

Evaluation of Extrusion and Apical Seal of Thermafil™ Obturation with and without MTA as an Apical Barrier in Comparison with Lateral Condensation Technique: An In Vitro Study

Ajay S Rao, Nimisha C Shah, Rajeshkrishna Malge, Sharanpriya Sathnoorkar, T Chandrasekhar

Citation Information :

DOI: 10.5005/jp-journals-10005-1865

License: CC BY-NC 4.0

Published Online: 01-12-2020

Copyright Statement:  Copyright © 2020; The Author(s).


Abstract

Aim and objective: This study aimed to compare the apical sealing ability and periapical extrusion in the Thermafil™ obturation technique, with and without an apical barrier of MTA, with lateral condensation technique. Materials and methods: Sixty freshly extracted human central incisors were instrumented with the crown down technique and divided into three experimental groups. Group I: lateral condensation technique obturation, group II: Thermafil obturation (DENTSPLY Tulsa), and group III: this group was obturated into two parts; first MTA (ProRoot) was placed in apical 3 mm and later the remaining canal was obturated with Thermafil™ obturation technique (DENTSPLY Tulsa). AH Plus sealer was used in all the groups. Specimens of all the groups were layered with nail paint excluding the apical 3 mm. Twenty-four hours later, all the teeth were suspended in Black India ink for 48 hours. Finally, all the teeth were decalcified, rendered transparent and linear dye leakage and periapical extrusion was measured using ×60 magnification of stereomicroscope with an in-built ruler. Results: A Chi-square test done to evaluate periapical extrusion showed there was a significant difference found among all the groups (p < 0.05), whereas in case of linear apical dye leakage using a Student's “t” test showed there was no significant difference among all the groups (p > 0.05). Conclusion: Despite showing apical leakage, the thermo-plasticized gutta-percha obturation technique can be advantageous when used with MTA as an apical barrier since there is no scope for apical extrusion along with the benefit of three-dimensional obturation of the root canal system when compared with the lateral condensation technique.


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  1. Ingle JI, Bakland LK. Endodontics. 6th ed., ch. 11. 2008. pp. 571–668.
  2. Weine FS. Endodontic therapy. St. Loius: Mosby; 2004.
  3. Johnson B. A new gutta-percha technique. JOE 1978;4(6):185–188. DOI: 10.1016/S0099-2399(78)80173-3.
  4. Gilhooly RMP, Hayes SJ, Bryant ST, et al. Comparison of lateral condensation and thermo mechanically compacted warm a-phase gutta-percha with a single cone for obturating curved root canals. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2001;91(4):89–94. DOI: 10.1067/moe.2001.110416.
  5. Coviello J, Brilliant JD. A preliminary clinical study on the use of tricalcium phosphate as an apical barrier. J Endod 1979;5(6):6–13. DOI: 10.1016/S0099-2399(79)80141-7.
  6. Rossmeisel R, Reader A, Melfi R. A study of freeze-dried cortical bone used as an apical barrier in monkey teeth. J Endod 1982;8(5):219–226. DOI: 10.1016/S0099-2399(82)80358-0.
  7. El Deeb ME, Thuc-Quyen NT, Jensen JR. The dentinal plug: its effect on confining substances to the canal and on the apical seal. JOE 1983;9:355–359.
  8. Holland R, De Souza V, Nery MJ, et al. Tissue reaction following apical plugging of the root canal with infected dentin chips. Oral Surg 1980;49(4):366. DOI: 10.1016/0030-4220(80)90149-8.
  9. Weisenseel Jr J, Hicks M, Pelleu Jr G. Calcium hydroxide as an apical barrier. JOE 1987;13(1):1–5. DOI: 10.1016/S0099-2399(87)80084-5.
  10. Pitts DL, Jones JE, Oswald RJ. A histological comparison of calcium hydroxide plug and dentin plug used for the control of gutta-percha root canal filling material. JOE 1984;10(7):283. DOI: 10.1016/S0099-2399(84)80180-6.
  11. Pitt Ford TR, Torabinejad M, McKendry DJ, et al. Use of mineral trioxide aggregate for repair of furcal perforations. Oral Surg Oral Med Oral Pathol Oral RadiolEndod 1995;79(6):756–763. DOI: 10.1016/S1079-2104(05)80313-0.
  12. Fellipe WT, Fellipe MCS, Rocha MJC. The effect of mineral trioxide aggregate on the apexification and periapical healing of teeth with incomplete root formation.
  13. Huang GTJ, Sonoyama W, Liu Y, et al. The hidden treasure in apical papilla: the role in pulp/dentin regeneration and bioroot engineering. J Endod 2008;34(6):645–651. DOI: 10.1016/j.joen.2008.03.001.
  14. Mann SR, McWalter GM. Evaluation of apical seal and placement control in straight and curved canals obturated by laterally condensed and thermo-plasticized guta-percha. JOE 1987;13(1):10–17.
  15. Sahli C-C, Berastegui E, Brau-Aguade E. Apical sealing using two thermo plasticized gutta-percha techniques compared with lateral condensation. JOE 1997;23(10):630–638.
  16. Michanowicz A, Czonstkowsky M. Sealing properties of an injection thermo-plasticized low temperature gutta-percha: a preliminary study. JOE 1984;10(12):563–566.
  17. Abarca AM, Bustos A, Navia M. A comparison of apical sealing and extrusion between Thermafil and lateral condensation techniques. JOE 2001;27(11):670–672. DOI: 10.1097/00004770-200111000-00004.
  18. Yeung P, Liewehr FR, Moon PC. A quantitative comparison of the fill density of MTA produced by two placement techniques. J Endod 2006;32(5):456–459. DOI: 10.1016/j.joen.2005.08.008.
  19. Matt G, Thorpe J, Strother J, et al. Comparative study of white and gray mineral trioxide aggregate (MTA) simulating a one-or two-step apical barrier technique. J Endod 2004;30(12):876–879. DOI: 10.1097/01.don.0000136213.93171.45.
  20. Hamad HA, Tordik PA, McClanahan SB. Furcation perforation repair comparing gray and white MTA: a dye extraction study. J Endod 2006;32(4):337–340. DOI: 10.1016/j.joen.2005.10.002.
  21. Pichardo MR, George SW, Bergeron BE, et al. Apical leakage of root-end placed super EBA, MTA, and Geristore restorations in human teeth previously stored in 10% formalin. J Endod 2006;32(10):956–959. DOI: 10.1016/j.joen.2006.07.011.
  22. Peng L, Ye L, Tan H, et al. Outcome of root canal obturation by warm gutta-percha versus cold lateral condensation: a meta-analysis. J Endod 2007;33(2):106–109. DOI: 10.1016/j.joen.2006.09.010.
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