Cone-beam Computed Tomographic Analysis of Canal Transportation and Centering Ability of Three Different Nickel-Titanium Rotary File Systems
Keywords:Canal transportation, Centering ability, Computed tomography, HyFlex controlled memory, Revo-S, Mtwo
AIM: The aim of the present study was to compare the canal transportation and centering ability of three rotary nickel-titanium file systems, HyFlex controlled memory, Revo-S, and Mtwo in moderately curved root canals using computed tomography (CT).
MATERIALS AND METHODS: Thirty freshly extracted single-rooted teeth having curved root canals with at least 10°–20° of curvature were selected. The teeth were divided into three experimental groups of ten each. After preparation with HyFlex CM (Coltene-Whaledent, Allstetten, Switzerland), Revo-S (Micro-Mega, Besançon, France), and Mtwo (VDW, Munich, Germany) all teeth were scanned using CT to determine the root canal shape. Pre- and post-instrumentation images were obtained at three levels, 3 mm apical, 9 mm middle, and 15 mm coronal above the apical foramen were compared using CT software. Amount of transportation and centering ability were assessed. The three groups were statistically compared with analysis of variance and post-hoc Tukey’s honestly significant difference test.
RESULTS: Least apical transportation and higher centering ability were seen in HyFlex CM file system in all the three sections followed by Revo-S, Mtwo file system showed maximum transportation.
CONCLUSIONS: According to the present in-vitro study, we can conclude that HyFlex CM rotary file systems showed least canal transportation and highest centering ability as compared to Revo-S and Mtwo file system but there was no statistically significant difference among these file systems (p > 0.05) at coronal, middle, and apical level of root canal.
Schafer E, Dammaschke T. Development and sequelae of canal transportation. Endod Top. 2009;15:75-90.
Garip Y, Gunday M. The use of computed tomography when comparing nickel-titanium and stainless steel files during preparation of simulated curved canals. Int Endod J. 2001;34(6):452- 7. https://doi.org/10.1046/j.1365-2591.2001.00416.x PMid:11556512
Schilder H. Cleaning and shaping the root canal. Dent Clin North Am. 1974;18(2):269-96. PMid:4522570
Aguiar CM, Fernanda A, Câmara AC, Frazão M. Cone beam computed tomography: A tool to evaluate root canal preparations. Actastomatolcroat. 2012;46(4):273-9.
Elayouti A, Dima E, Judenhofer MS, Lost C, Pichler BJ. Increased apical enlargement contributes to excessive dentin removal in curved root canals: A stepwise microcomputed tomography study. J Endod. 2011;37(11):1580-4. https://doi.org/10.1016/j.joen.2011.08.019 PMid:22000468
Camara AC, Aguiar CM, Poli de Figueiredo JA. Assessment of the deviation after biomechanical preparation of the coronal, middle, and apical thirds of root canals instrumented with three HERO rotary systems. J Endod. 2007;33(12):1460-3. https://doi.org/10.1016/j.joen.2007.07.029 PMid:18037059
Wildey WL, Senia ES, Montgomery S. Another look at root canal instrumentation. Oral Surg Oral Med Oral Pathol. 1992;74(4):499- 507. https://doi.org/10.1016/0030-4220(92)90303-8 PMid:1408028
Skidmore AE, Bjorndal AM. Root canal morphology of the human mandibular first molar. Oral Surg Oral Med Oral Pathol. 1971;32(5):778-84. https://doi.org/10.1016/0030-4220(71)90304-5 PMid:5286234
Meireles D, Marques AF, Garcia LF, Garrido AD, Sponchiado EC. Assessment of apical deviation of root canals after debridement with the hybrid, protaper and pathfile systems. J Int Dent. 2012;2(1):20-4. https://doi.org/10.4103/2229-5194.94187
Pasternak-Junior B, Sousa-Neto MD, Silva RG. Canal transportation and centring ability of RaCe rotary instruments. Int Endod J. 2009;42(6):499-506. https://doi.org/10.1111/j.1365-2591.2008.01536.x PMid:19298575
Thompson SA. An overview of nickel-titanium alloys used in dentistry. Int Endod J. 2000;33(4):297-310. https://doi.org/10.1046/j.1365-2591.2000.00339.x PMid:11307203
Weine FS, Kelly RF, Lio PJ. The effect of preparation procedures on original canal shape and on apical foramen shape. J Endod. 1975;1(8):255-62. https://doi.org/10.1016/s0099-2399(75)80037-9 PMid:10697472
Schafer E, Diez C, Hoppe W, Tepel J. Roentgenographic investigation of frequency and degree of canal curvatures in human permanent teeth. J Endod. 2002;28(3):211-6. https://doi.org/10.1097/00004770-200203000-00017 PMid:12017184
Peters OA. Current challenges and concepts in the preparation of root canal systems: A review. J Endod. 2004;30(8):559-67. PMid:15273636
Hulsmann M, Peters OA, Dummer PM. Mechanical preparation of root canals: Shaping goals, techniques and means. Endod Top. 2005;10:30-76. https://doi.org/10.1111/j.1601-1546.2005.00152.x
Hartmann MS, Barletta FB, Fontanella VR, Vanni JR. Canal transportation after root canal instrumentation: A comparative study with computed tomography. J Endod 2007;33(8):962-5. https://doi.org/10.1016/j.joen.2007.03.019 PMid:17878083
Kandaswamy D, Venkateshbabu N, Porkodi I, Pradeep G. Canal-centering ability: An endodontic challenge. J Conserv Dent. 2009;2(1):39. https://doi.org/10.4103/0972-0707.53334 PMid:20379433
El Batouty KM, Fekry WW. Canal centering ability of M two, Twisted Files and Revo-S nickel-titanium rotary instruments. ENDO (Lond Engl). 2012;(2):125-30.
Carlos MA, Fernanda AD, Andréa C, Marco F. Changes in root canal anatomy using three nickel-titanium rotary system a cone beam computed tomography. Braz J Oral Sci. 2013;12(4):307- 12. https://doi.org/10.1590/s1677-32252013000400006
Zhao D, Shen Y, Peng B, Haapasalo M. Micro-computed tomography evaluation of the preparation of mesiobuccal root canals in maxillary first molars with Hyflex CM, twisted files, and k3 instruments. J Endod. 2013;39(3):385-8. https://doi.org/10.1016/j.joen.2012.11.030 PMid:23402512
Bramante CM, Berbert A, Borges RP. A methodology for evaluation of root canal instrumentation. J Endod. 1987;13:5:243- 5. https://doi.org/10.1016/s0099-2399(87)80099-7 PMid:3473181
Jung IY, Seo MA, Fouad AF, Spangberg LS, Lee SJ, Kim HJ, et al. Apical anatomy in mesial and mesiobuccal roots of permanent first molars. J Endod. 2005;31(5)364-8. https://doi.org/10.1097/01.don.0000145425.73364.91 PMid:15851930
Sydney GB, Batista A, de Melo LL. The radiographic platform: A new method to evaluate root canal preparation in vitro. J Endod. 1991;17(11):570-2. https://doi.org/10.1016/s0099-2399(06)81724-3 PMid:1812207
Arnheiter C, Scarfe WC, Farman AG. Trends in maxillofacial cone-beam computed tomography usage. Oral Radiol. 2006;22:80-5. https://doi.org/10.1007/s11282-006-0055-6
Hashem AA, Ghoneim AG, Lutfy RA, Foda MY, Omar GA. Geometric analysis of root canals prepared by four rotary NiTi shaping systems. J Endod. 2012;38(7):996-1000. https://doi.org/10.1016/j.joen.2012.03.018 PMid:22703669
Basrani B, Roth K, Sas G, Kishen A, Peters OA. Torsional profiles of new and used Revo-S rotary instruments: An in vitro study. J Endod. 201137(7):989-92. https://doi.org/10.1016/j.joen.2011.03.029 PMid:21689557
Oliveira CA, Meurer MI, Pascoalato C, Silva SR. Cone-beam computed tomography analysis of the apical third of curved roots after mechanical preparation with different automated systems. Braz Dent J. 2009;20(5):376-81. https://doi.org/10.1590/s0103-64402009000500004 PMid:20126905
European Society of Endodontology. Consensus report of the European Society of Endodontology on quality guidelines for endodontic treatment. Int Endod J. 1994;27(3):115-24. https://doi.org/10.1111/j.1365-2591.1994.tb00240.x PMid:7995643
Yun HH, Kim SK. A comparison of the shaping abilities of 4 nickel-titanium rotary instruments in simulated root canals. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2003;95(2):228- 33. https://doi.org/10.1067/moe.2003.92 PMid:12582365
Iqbal MK, Firic S, Tulcan J, Karabucak B, Kim S. Comparison of apical transportation between ProFile and ProTaper NiTi rotary instruments. Int Endod J. 2004;37(6):359-64. https://doi.org/10.1111/j.1365-2591.2004.00792.x PMid:15186241
Al-Sudani D, Al-Shahrani S. A comparison of the canal centering ability of ProFile, K3, and RaCe Nickel Titanium rotary systems. J Endod. 2006;32(12):1198-201. https://doi.org/10.1016/j.joen.2006.07.017 PMid:17174683.
Short JA, Morgan LA, Baumgartner JC. A comparison of canal centering ability of four instrumentation techniques. J Endod. 1997;23(8):503-7. https://doi.org/10.1016/s0099-2399(97)80310-x PMid:9587320
Sánchez JA, Duran-Sindreu F, de Noé S, Mercadé M, Roig M. Centring ability and apical transportation after over instrumentation with ProTaper Universal and ProFile Vortex instruments. Int Endod J. 2012;45(6):542-51. https://doi.org/10.1111/j.1365-2591.2011.02008.x PMid:22264187
Vallaeys K, Chevalier V, Arbab-Chirani R. Comparative analysis of canal transportation and centring ability of three Ni-Ti rotary endodontic systems: Protaper® , MTwo® and Revo-S™, assessed by micro-computed tomography. Odontology. 2016;104(1):83-8. https://doi.org/10.1007/s10266-014-0176-z PMid:25248755
Nagaraja S, Murthy BS. CT evaluation of canal preparation using rotary and hand NI-TI instruments: An in vitro study. J Conser Dent. 2010;13(1):16-22 https://doi.org/10.4103/0972-0707.62636. PMid:20582214
Foschi F, Nucci C, Montebugnoli L, Marchionni S, Breschi L, Malagnino VA, et al. SEM evaluation of canal wall dentine following use of Mtwo and ProTaper NiTi rotary instruments. Int Endod J. 2004;37(12):832-9. https://doi.org/10.1111/j.1365-2591.2004.00887.x PMid:15548274
Schafer E, Oitzinger M. Cutting efficiency of five different types of rotary nickel-titanium instruments. J Endod. 2008;34(2):198- 200. https://doi.org/10.1016/j.joen.2007.10.009 PMid:18215681
Gundappa M, Bansal R, Khoriya S, Mohan R. Root canal centering ability of rotary cutting nickel titanium instruments: A meta-analysis. J Conserv Dent. 2014;17(6):504. https://doi.org/10.4103/0972-0707.144567 PMid:25506134
Gluskin AH, Brown DC, Buchanan LS. A reconstructed computerized tomographic comparison of Ni-Ti rotary GT™ files versus traditional instruments in canals shaped by novice operators. Int Endod J. 2001;34(6):476-84. https://doi.org/10.1046/j.1365-2591.2001.00422.x PMid:11556516
Kishore A, Gurtu A, Bansal R, Singhal A, Mohan S, Mehrotra A. Comparison of canal transportation and centering ability of twisted files, hyflex controlled memory, and wave one using computed tomography scan: An in vitro study. J Conser Dent. 2017;20(3):161-5. https://doi.org/10.4103/jcd.jcd_110_16 PMid:29279618
Testarelli L, Plotino G, Al-Sudani D, Vincenzi V, Giansiracusa A, Grande NM, et al. Bending properties of a new nickel-titanium alloy with a lower percent by weight of nickel. J Endod. 2011;37(9):1293-5. https://doi.org/10.1016/j.joen.2011.05.023 PMid:21846552
Pongione G, Pompa G, Milana V, Di Carlo S, Giansiracusa A, Nicolini E, et al. Flexibility and resistance to cyclic fatigue of endodontic instruments made with different nickeltitanium alloys: A comparative test. Ann Stomatol (Roma) 2012;3:11922. PMid:23386933
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