Quality of obturation achieved by different endodontic obturation systems

Abstract

Objective: This study was performed to determine in vitro the sealing ability of different endodontic obturation systems and to compare their efficacy. Methods: In the study were used 36 single-rooted extracted permanent teeth. Root canals of all the samples were prepared with ProTaper rotary files. The teeth were divided into four groups, filled by different obturation technique and AH26 sealer. The teeth in the first group were obturated with single-cone technique, in the second group by cold lateral condensation, and the teeth in the third group were obturated with Thermafil. In the fourth group obturation was done with GuttaFlow. After radiography of the root canal fillings, the roots were sectioned horizontally at the level of 2 mm and 4 mm from the apex. The area of gaps and adaptation to canal walls were evaluated using stereomicroscopy and calculated. Results: Evaluation of quality of obturation of root canals based on X-ray examination exhibited compact seal of root canals in all research groups, except with single-cone technique. Evaluation of cross sections revealed that lateral condensation showed the best hermetic sealing and the single-cone technique the worst. GuttaFlow and Thermafil have similar sealing effect. Conclusion: It can be concluded that the density of gutta-percha was observed to decrease towards the coronal aspect when the single cone and GuttaFlow were used.

Keywords

• endodontic sealers
• obturation technique
• root canal obturation

References

1. 1. Bouillaguet S, Shaw L, Barthelemy J, Krejci I, Wataha JC: Long-term sealing ability of Pulp Canal Sealer, AH-Plus, GuttaFlow and Epiphany. Int Endod J. 2008;41(3):219-226. DOI:10.1111/j.1365-2591.2007.01343.x.
2. 2. Capík S, Štvrtina J: Comparison of Gutta-Percha Obturation Techniques in the Treatment of Wide Root Canals in Dogs. Acta Vet. Brno 2008, 77: 291-296
3. 3. Clark DS, ElDeeb ME: Apical sealing ability of metal versus plastic carrier Thermafil obturators. J Endod. 1993;19(1):4-9. DOI:10.1016/S0099-2399(06)81032-0.
4. 4. Cohen S, Burns RC: Pathways of the Pulp, 7th edition. Mosby, 1998.
5. 5. De Moor RJ, De Bruyne MA: The long-term sealing ability of AH-26 and AH-PLUS used with three guttapercha obturation techniques. Quintessence Int. 2004;35(4):326-331.
6. 6. Ingle JI, West JD: Endodontics, 4th edition. Lea & Febiger, 1994.
7. 7. Elayouti A, Achleithner C, Löst C, Weiger R: Homogeneity and Adaptation of a New Gutta-Percha Paste to Root Canal Walls. J Endod. 2005;31(9):687-690. DOI:10.1097/01.don.0000157991.83577.e0.
8. 8. Zielinski TM, Baumgartner JC, Marshall JG: An evaluation of Guttaflow and gutta-percha in the filling of lateral grooves and depressions. J Endod. 2008;34(3):295-298. DOI:10.1016/j.joen.2007.12.004.

9. 9. Kontakiotis EG, Wu MK, Wesselink PR: Effect of sealer thickness on long-term sealing ability: a 2-year follow-up study. Int Endod J. 1997;30(5):307-312. DOI:10.1046/j.1365-2591.1997.00087.x.
10. 10. Tanomaru-Filho M, Torres FFE, Chávez-Andrade GM, de Almeida M, Navarro LG, Steier L, Guerreiro-Tanomaru JM: Physicochemical Properties and Volumetric Change of Silicone/Bioactive Glass and Calcium Silicate-based Endodontic Sealers. J Endod. 2017;43(12):2097-2101. DOI:10.1016/j.joen.2017.07.005.
11. 11. Siqueira JF Jr, Rôças IN, Favieri A, Abad EC, Castro AJ, Gahyva SM: Bacterial leakage in coronally unsealed root canals obturated with 3 different techniques. Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics. 2000 Nov;90(5):647-650. DOI: 10.1067/moe.2000.110412.
12. 12. Wolcott J, Himel VT, Powell W, Penney J: Effect of two obturation techniques on the filling of lateral canals and the main canal. J Endod. 1997;23(10):632-635. DOI:10.1016/S0099-2399(97)80176-8.
13. 13. Ravanshad S, Torabinejad M: Coronal dye penetration of the apical filling materials after post space preparation. Oral Surg Oral Med Oral Pathol. 1992;74(5):644-647. DOI:10.1016/0030-4220(92)90359-x.
14. 14. Whitworth J: Methods of filling root canals: principles and practices. Endodontic Topics. 2005;12(1):2–24. DOI: 10.1111/j.1601-1546.2005.00198.x.
15. 15. Malić I, Miletić I, Pezelj-Ribarić S, Blazić-Potočki Z, Anić I: Propusnost punila Apexit Plus i GuttaFlow. Acta Stomatol Croat. 2008;42(2):140-146.
16. 16. Pitout E, Oberholzer TG: Leakage of teeth root-filled with GuttaFlow and a single GP cone compared to lateral condensation and warm vertical condensation. SADJ. 2009;64(3):104-108.
17. 17. Monticelli F, Sword J, Martin RL, Schuster GS, Weller RN, Ferrari M, Pashley DH, Tay FR: Sealing properties of two contemporary single-cone obturation systems. Int Endod J. 2007;40(5):374-385. DOI:10.1111/j.1365-2591.2007.01231.x.
18. 18. Eldeniz AU, Ørstavik D: A laboratory assessment of coronal bacterial leakage in root canals filled with new and conventional sealers. Int Endod J. 2009;42(4):303-312. DOI:10.1111/j.1365-2591.2008.01509.x.