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http://dx.doi.org/10.5395/JKACD.2007.32.6.530

Comparison of shaping ability using various Nickel-Titanium rotary files and hybrid technique  

Kim, Jung-Won (Department of Conservative Dentistry, School of Dentistry, Pusan National University)
Park, Jeong-Kil (Department of Conservative Dentistry, School of Dentistry, Pusan National University)
Hur, Bock (Department of Conservative Dentistry, School of Dentistry, Pusan National University)
Kim, Hyeon-Cheol (Department of Conservative Dentistry, School of Dentistry, Pusan National University)
Publication Information
Restorative Dentistry and Endodontics / v.32, no.6, 2007 , pp. 530-541 More about this Journal
Abstract
Currently, various Nickel-Titanium rotary files are used in endodontic treatment, but there is no one perfect system that can be applied to any clinical situation. Therefore, the combined uses of various file systems which can emphasize the advantages of each system are introduced as hybrid instrumentation. The ProTaper system is efficient in body shaping and apical pre-enlargement but is reported to have more possibility of transportation and produce more aberrations and deformation in more or less severe curved canals. Recently, new ProTaper system(ProTaper Universal) with different configuration and cross-sectional design to overcome the week points of ProTaper have been marketed. The purpose of this study was to compare and evaluate the shaping abilities of ProTaper, ProTaper Universal system, and two hybrid methods using S-series of ProTaper Universal and Hero Shaper or ProFile. The time lapses for instrumentation were measured and the used files were inspected for distortion. The pre- and post-instrumented root canals were scanned and superimposed to evaluate the aberrations and reduction of root canal curvature and change of radius of canal curvature. The increased canal width and apical centering ratio were calculated at 1, 2, 3, 4 and 5 mm levels from apical foramen. Under the conditions of this study, the ProTaper Universal seems to have better shaping ability than ProTaper in terms of instrumented width and instrumentation time. It may be suggested that the ProTaper Universal system is efficient as much as hybrid instrumentation using ProTaper and other constant-tapered NiTi file systems in highly experienced operators.
Keywords
Shaping ability; Hybrid method; ProTaper; ProTaper Universal; Experienced operator;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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1 Glosson CR, Haller RH, Dove SB, del Rio CE. A comparison of root canal preparations using Ni-Ti hand, Ni-Ti engine-driven, and K-Flex endodontic instruments. J Endod 21(3):146-151. 1995   DOI   ScienceOn
2 Chen JL, Messer HH. A comparison of stainless steel hand and rotary nickel-titanium instrumentation using a silicone impression technique. Aust Dent J 47(1):12-20, 2002   DOI   ScienceOn
3 Schafer E. Shaping ability of Hero 642 rotary nickel-titanium instruments and stainless steel hand K-Flexofiles in simulated curved root canals. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 92(2): 215-220, 2001   DOI   ScienceOn
4 Tasdemir T, Aydemir H, Inan U, Unal O. Canal preparation with Hero 642 rotary Ni-Ti instruments compared with stainless steel hand K-file assessed using computed tomography. Int Endod J 38(6) :402-408, 2005   DOI   ScienceOn
5 Calberson FL. Deroose CA. Hommez GM, De Moor RJ. Shaping ability of ProTaper nickel-titanium files in simulated resin root canals. Int Endod J 37(9):613-623, 2004   DOI   ScienceOn
6 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 95(2) :228-233, 2003   DOI   ScienceOn
7 Park SH. Cho KM, Kim JW. The Efficiency of the NiTi Rotary files in Curved Simulated Canals Shaped by Novice Operators. J Kor Acad Cons Dent 28(2): 146-155, 2003   과학기술학회마을   DOI
8 Calhoun G, Montgomery S. The effects of four instrumentation techniques on root canal shape. J Endod 14(6) :273-277, 1988   DOI   ScienceOn
9 Kosa DA, Marshall G, Baumgartner JC. An analysis of canal centering using mechanical instrumentation techniques. J Endod 25(6):441-445, 1999   DOI   ScienceOn
10 Schafer E, Diez C, Hoppe W, Tepel J. Roentgenographic investigation of frequency and degree of canal curvatures in human permanent teeth. J Endod 28(3): 211-216, 2002   DOI   ScienceOn
11 Powell SE, Simon JHS, Maze B. A comparison of the effect of modified and nonmodified instrument tips on apical canal configuration. J Endod 12(7):293-300, 1986   DOI   ScienceOn
12 Pruett JP, Clement DJ, Carnes DL. Cyclic fatigue of nickel-titanium endodontic instruments. J Endod 23(2) :77-85, 1997   DOI   ScienceOn
13 Ankrum MT, Hartwell GR. Trutt JE. K3 Endo, ProTaper, and ProFile systems: breakage and distortion in severely curved root of molars. J Endod 30(4):234-237, 2004   DOI   ScienceOn
14 Peters OA. Peters CI, Schoneberger K. Barbakow F. ProTaper rotary root canal preparation: effects of canal anatomy on final shape analysed by micro CT. Int Endod J 36(1) :86-92, 2003   DOI   ScienceOn
15 Schafer E, Vlassis M. Comparative investigation of two rotary nickel-titanium instruments: ProTaper versus RaCe. Part 1. Shaping ability in simulated curved canals. Int Endod J 37 (4): 229-238, 2004   DOI   ScienceOn
16 Walia H, Brantley WA, Gerstein H. An initial investigation of the bending and torsional properties of Nitinol root canal files. J Endod 14(7): 346-351, 1988   DOI   ScienceOn
17 Hong ES, Park JK. Hur B, Kim HC. Comparison of shaping ability between various hybrid instrumentation methods with ProTaper. J Kor Acad Cons Dent 31(1): 11-19, 2006   과학기술학회마을   DOI
18 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 34(6) :452-457, 2001   DOI   ScienceOn
19 Kim HC, Park JK, Hur B. Relative efficacy of three Ni-Ti file systems used by undergraduates. J Kor Acad Cons Dent 30(1) :38-48, 2005   DOI
20 Bergmans L, Van Cleynenbreugel J, Beullens M, Wevers M. Van Meerbeek B, Lambrechts P. Progressive versus constant tapered shaft design using NiTi rotary instruments. Int Endod J 36(4) :288-295, 2003   DOI   ScienceOn
21 Park WK, Lee HJ, Hur B. Shaping ability of nickel-titanium rotary files. J Kor Acad Cons Dent 29(1):44-50, 2004   DOI
22 Hata G, Uemura M, Kato AS. Imura N, Novo NF, Toda T. A comparison of shaping ability using ProFile, GT file, and Flex-R endodontic instruments in simulated canals. J Endod 28(4): 316-321. 2002   DOI   ScienceOn
23 West J. Endodontic Update 2006. J Esthet Restor Dent 18(5) :280-300, 2006   DOI
24 Peters GA. Current Challenges and Concepts in the Preparation of Root Canal Systems: A Review. J Endod 30(8):559-567, 2004   DOI   ScienceOn
25 Lee CH, Cho KM, Hong CU. Effect of various canal preparation techniques using rotary Nickel-Titanium files on the maintenance of canal curvature. J Kor Acad Cons Dent 28(1) :41-49. 2003   DOI
26 Walsch H. The hybrid concept of nickel-titanium rotary instrumentation. Dent Clin North Am 48(1): 183-202, 2004   DOI   ScienceOn
27 Clauder T, Baumann MA. ProTaper NT system. Dent Clin North Am 48(1) :87-111. 2004   DOI   ScienceOn
28 Schafer E, Schulz-Bongert U, Tulus G. Comparison of hand stainless steel and nickel titanium rotary instrumentation: a clinical study. J Endod 30(6) :432-435, 2004   DOI   ScienceOn
29 Berutti E, Chiandussi G, Gaviglio I, Ibba A. Comparative analysis of torsional and bending stresses in two mathematical models of nickel-titanium rotary instruments: ProTaper versus ProFile. J Endod 29(1): 15-19. 2003   DOI   ScienceOn
30 Haikel Y, Serfaty R, Bateman G, Senger B, Allemann C. Dynamic and cyclic fatigue of engine-driven rotary nickel-titanium endodontic instruments. J Endod 25(6) :434-440, 1999   DOI   ScienceOn