Kanika Chhillar, Kirti Rathee, Atharav Gautam, Dr. Deepanshi, Anjum Zia, Ankita Sundan


Aim: To evaluateand compare the effect of different Nickel-Titanium system-Twisted File Adaptive (TFA), WaveOne and ProTaper Next (PTN) on canal transportation, centering ability and volumetric changes of mesiobuccalroot canal of mandibular molars via cone beam computed tomography (CBCT) imaging.

Method: Mesiobuccal root canals of 30 mandibular molars with angle of curvature ranging from 10-20˚ were divided randomly into three groups of 10 each. Canals were prepared to a tip size 25 using TFA, WaveOne and PTN. Pre and post instrumentation scans were performed to compare canal transportation and centering ability at level of2mm, 5mm and 8mm from CEJusing 3D CBCT images. Volumetric changes were estimated by comparing the difference in volume of root canals recorded before and after instrumentation of canal. One way ANOVA was used to compare canal transportation, centering ratio and volumetric changes between groups. All statistical procedures were performed with significance level set at 5%.

Results:The result demonstrated that Gp I (TFA) and Gp II (WO) showed statistically significant difference in canal transportation at all three levels. Gp I and Gp II showed significant difference at coronal level only.  All file systems based on different kinematics remained well centered in canal at all levels. There was no significant difference in volumetric changes among three Ni-Ti file systems.

Conclusion:PTN and TFN had similar results regarding canal transportation. WaveOne caused more canal transportation. All file system remain well centered. No significant difference in volumetric changes in root canals instrumented using three different Ni-Ti file systems.


Canal Transportation, Centering ability, Cone Beam Computed Tomography, ProTaper Next, Twisted File Adaptive, WaveOne.

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McSpaddenJohnT; Endodontic Instrumentation; Ramsey,NJArbor books,2006.

Schilder H. Cleaning and shaping the root canal. Dent Clin N Am. 1974;18:269-96

Jain A, Asrani H, Singhal AC, Bhatia TK, SharmaV, Jaiswal V. Comparative evaluation of canal transportation, centering ability, and remaining dentin thickness between WaveOne and ProTaper rotary by using cone beam computed tomography: An in vitro study. JCD. 2016;19(5):440-444.

Chole D, Burad PA, Kundoor S, Bakle S, Devagirkar A, Deshpande R. Canal Transportation- A Threat in Endodontics: A Review. IOSR-JDMS. 2016;15(7):64-72.

Webber J, Machtou P, Pertot W, Kuttler S, Ruddle C. The WaveOne single-file reciprocating system.Clinical technique 2011;28-33.

Moe et all. Root Canal Shaping Effect of Instruments with Offset Mass of Rotation in the Mandibular First Molar: A Micro–computed Tomographic Study.JEndod. 2018;44(5):822-827.

Gambarini G, Glassman G.TF Adaptive:- A novel approach to Nickel-Titanium Instrumentation. “ Rotary when you want it, Reciprocation when you need it.” Oral Health Dental Journal, May 2013:22-30.

Cotton TP, Geisler TM, Holden DT, Schwartz SA, Schindler WG. Endodontic applications of cone beam volumetric tomography. J Endod. 2007;33:1121-32.

Patel S, Dawood A, Whaites E, Pitt Ford T. New dimensions in endodontic imaging: Part1.Conventional and alternative radiographic systems. Int Endod J. 2009;42:447-62.

Ordinola-Zapata R, Bramante CM, Duarte MA, Cavenago BC, Jaramillo D, Versiani MA. Shaping ability of reciproc and twisted file adaptive in severely curved canals of rapid micro-CT-based prototyping molar replicas. J Appl Oral Sci. 2014;22:509-15.

Peters OA. Current challenges and concepts in the preparation of root canal systems: A review. J Endod. 2004;30:559‑67.

Weine F, Kelly R, Lio P. The effect of preparation procedures on the original canal shape and on apical foramen shape. J Endod1975;1:255-62.

Marzouk AM, Ghoneim AG. Computed Tomographic Evaluation of Canal Shape Instrumented by Different Kinematics Rotary Nickel-Titanium Systems. J Endod. 2013July;39(7):906-909.

CaparID, Ertas H, Arslan H, Ertas ET. Comparative Study of Different Novel Nickel-Titanium Rotary Systems for Root Canal Preparation in Severely Curved Root Canals. J Endod. 2014;40:852-6.

Silva EJ, Tameirão MD, Belladonna FG, Neves AA, Souza EM, De-Deus G. Quantitative transportation assessment in simulated curved canals prepared with an adaptive movement system. J Endod2015;41:1125-1129.

Elnaghy AM. Cyclic fatigue resistance of ProTaper Next nickel-titanium rotary files.IntEndod J. 2014;47:1034-9.

Elnaghy AM, Elsaka SE. Evaluation of root canal transportation, centering ratio, and remaining dentin thickness associated with ProTaper Next instruments with and without glide path. J Endod. 2014;40:2053-6.

Versiani MA et al. microcomputed tomography of oval shaped canal prepared with self adjusting file, wave one, protaper universal systems. J Endod. 2013;39:1060-6.

KarataşE, Arslan H, Kol E, Bayrakdar IS. Effect of movement kinematics on canal transportation: reciprocation with different angles, adaptive motion, and continuous rotation. Turk Endo Jour 2016;1(1):13–18.

Hui Wu, Cheng Peng, Yulong Bai, Xin Hu, Lei Wang, Changyi Li. Shaping ability of ProTaper Universal, WaveOneandProtaperNext in simulated L and S shaped root canals. BMC Oral Health 2015;15:27.

Troiano G et al. Centering ability of ProTaper Next and WaveOne Classic in J-Shape simulated Root Canals. e Scientific World Journal Volume 2016, Article ID 1606013, 5 pages.

Kishore A et al. Comparison of canal transportation and centering ability of Twisted Files, HyFlex controlled memory, and Wave One using computed tomography scan: An in vitro study. JCD. 2017;20(3):161-165.

Pedullà E, Plotino G, Grande NM et al. Shaping ability of two nickel-titanium instruments activated by continuous rotary or adaptive motion: a micro-computed tomography study. Clinical Oral Investigations 2016[Epub ahead of print].

Kim HC, Kwak SW, Cheung GS, Ko DH, Chung SM, Lee W. Cyclic fatigue and torsional resistance of two new nickel-titanium instruments used in reciprocation motion: Reciproc versus WaveOne. J Endod. 2012;38:541-4.

Schäfer E, Dzepina A, Danesh G. Bending properties of rotary nickel-titanium instruments. Oral Surg Oral Med Oral Pathol Oral RadiolEndod. 2003;96:757-63.

McSpadden JT. Mastering Endodontic Instrumentation. Chattanooga, TN, USA: Cloudland Institute; 2007

Gergi R, Osta N, Naaman A. Micro–Computed Tomographic Evaluation of Canal Transportation Instrumented by Different Kinematics Rotary Nickel-Titanium Instruments. J Endod. 2014Aug;40(8):1223-1227.

De Oliveira Alves V, Silveira Bueno CE, Cunha RS, Pinheiro CE, Fontana CE, de Martin AS. Comparison among manual instruments and PathFile and Mtwo rotary instruments to create a glide path in the root canal preparation of curved canals. J Endod. 2012;38:117–20.

Naseri M et al. Influence of motion pattern on apical transportation and centering ability of WaveOne single-file technique in curved root canals. Dental Research Journal.2016;13( 1):13-17.


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